| Phacelia acanthominthoides Elmer | Unresolved |  | WCSP (in review) | 
	
		| Phacelia acaulis (M. Martens & Galeotti) Brand | Synonym |  | TRO | 
	
		| Phacelia adenophora J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia adspersa Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia affinis A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia alba Rydb. | Synonym |  | TRO | 
	
		| Phacelia aldea R.Br. ex Sweet | Unresolved |  | WCSP (in review) | 
	
		| Phacelia aldea Loudon | Unresolved |  | WCSP (in review) | 
	
		| Phacelia aldersonii Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia alpina Rydb. | Synonym |  | TRO | 
	
		| Phacelia altotonga B.L.Turner | Unresolved |  | WCSP (in review) | 
	
		| Phacelia alvordensis M.E.Jones | Unresolved |  | WCSP (in review) | 
	
		| Phacelia amabilis Constance | Unresolved |  | WCSP (in review) | 
	
		| Phacelia ambigua M.E. Jones | Synonym |  | TRO | 
	
		| Phacelia ammophila Greene | Unresolved |  | TRO | 
	
		| Phacelia anelsonii J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia arenicola Brandegee | Synonym |  | TRO | 
	
		| Phacelia aretioides (Hook. & Arn.) A. Gray | Synonym |  | TRO | 
	
		| Phacelia argentea A.Nelson & J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia argillacea N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia argylensis N.D.Atwood & S.L.Welsh | Unresolved |  | WCSP (in review) | 
	
		| Phacelia arizonica A. Gray | Synonym |  | TRO | 
	
		| Phacelia artemisioides Griseb. | Accepted |  | TRO | 
	
		| Phacelia arthurii Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia austromontana J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia bakeri (Brand) J.F. Macbr. | Accepted |  | TRO | 
	
		| Phacelia barnebyana J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia beatleyae Reveal & Constance | Unresolved |  | WCSP (in review) | 
	
		| Phacelia bicknellii Small | Synonym |  | TRO | 
	
		| Phacelia bicolor Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia bicolor var. leibergii (Brand) A. Nelson & J.F. Macbr. | Unresolved |  | TRO | 
	
		| Phacelia biennis A. Nelson | Synonym |  | TRO | 
	
		| Phacelia bifurca Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia biolettii Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia bipinnatifida Michx. | Accepted |  | TRO | 
	
		| Phacelia bipinnatifida var. brevistylis (Buckley) A. Gray | Synonym |  | TRO | 
	
		| Phacelia bipinnatifida var. plummerii WOOD | Synonym |  | TRO | 
	
		| Phacelia bolanderi A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia boliviana Brand | Synonym |  | TRO | 
	
		| Phacelia bombycina Wooton & Standl. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia boykinii (A. Gray) Small | Synonym |  | TRO | 
	
		| Phacelia brachyantha Benth. | Accepted |  | TRO | 
	
		| Phacelia brachyantha var. paniculata DC. | Synonym |  | TRO | 
	
		| Phacelia brachyloba A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia brachystemon Kunze ex Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia brannanii Kellogg | Unresolved |  | WCSP (in review) | 
	
		| Phacelia brevistylis Buckley | Synonym |  | TRO | 
	
		| Phacelia breweri A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia buell-vivariensis N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia caerulea Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia californica Cham. | Synonym |  | TRO | 
	
		| Phacelia californica f. ballii (Brand) J.F. Macbr. | Unresolved |  | TRO | 
	
		| Phacelia californica var. bernardina (Greene) Jeps. | Synonym |  | TRO | 
	
		| Phacelia californica f. bernardina (Greene) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia californica var. calycosa (A. Gray) Dundas | Synonym |  | TRO | 
	
		| Phacelia californica f. egena (Brand) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia californica var. egena (Brand) Dundas | Synonym |  | TRO | 
	
		| Phacelia californica var. imbricata (Greene) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia californica var. jacintensis Dundas | Synonym |  | TRO | 
	
		| Phacelia californica var. patula (Brand) Jeps. | Synonym |  | TRO | 
	
		| Phacelia californica var. rotundata (Dundas) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia californica var. virgata (Greene) Jeps. | Synonym |  | TRO | 
	
		| Phacelia calthifolia Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia campanularia A. Gray | Synonym |  | TRO | 
	
		| Phacelia campestris A. Nelson | Synonym |  | TRO | 
	
		| Phacelia canescens Nutt. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia capitata Kruckeb. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia carmenensis B.L. Turner | Accepted |  | TRO | 
	
		| Phacelia cedrosensis Rose | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cephalotes A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cicutaria Greene | Unresolved |  | TRO | 
	
		| Phacelia cicutaria var. eximia (Eastw.) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia cicutaria var. heterosepala (Greene) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia cicutaria var. hispida (A. Gray) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia cicutaria var. hubbyi (J.F. Macbr.) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia ciliata Benth. | Accepted |  | TRO | 
	
		| Phacelia ciliata Raf. ex Brand | Synonym |  | TRO | 
	
		| Phacelia ciliata var. thermalis (Greene) Jeps. | Accepted |  | TRO | 
	
		| Phacelia ciliosa (Rydb.) Rydb. | Synonym |  | TRO | 
	
		| Phacelia cinerea Eastw. ex J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia circinata (Willd.) Jacq. | Synonym |  | TRO | 
	
		| Phacelia circinata var. calycosa A. Gray | Synonym |  | TRO | 
	
		| Phacelia circinata var. heterophylla (Pursh) Kuntze | Synonym |  | TRO | 
	
		| Phacelia circinatiformis A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia clinopodioides Bertero ex Ruschenb. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cloudcroftensis N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia commixta Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia compacta (Brand) J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia conferta G.Don | Unresolved |  | WCSP (in review) | 
	
		| Phacelia congdonii Greene | Accepted |  | TRO | 
	
		| Phacelia congesta Hook. | Accepted |  | TRO | 
	
		| Phacelia congesta var. dissecta A. Gray | Synonym |  | TRO | 
	
		| Phacelia constancei N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cookei Constance & Heckard | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cooperae A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cordifolia S.Watson ex Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia corrugata A. Nelson | Synonym |  | TRO | 
	
		| Phacelia corymbosa Jeps. | Synonym |  | TRO | 
	
		| Phacelia cottamii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia coulteri Greenm. | Accepted |  | TRO | 
	
		| Phacelia covillei S. Watson ex A. Gray | Synonym |  | TRO | 
	
		| Phacelia crassifolia Parry | Unresolved |  | WCSP (in review) | 
	
		| Phacelia crassifolia Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia crenulata Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia crenulata var. ambigua (M.E. Jones) J.F. Macbr. | Unresolved |  | TRO | 
	
		| Phacelia crenulata var. bakeri Brand | Synonym |  | TRO | 
	
		| Phacelia crenulata var. corrugata (A. Nelson) Brand | Unresolved |  | TRO | 
	
		| Phacelia crenulata var. minutiflora (J.W. Voss ex Munz) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia cronquistiana S.L.Welsh | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cryptantha Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia cumingii (Benth.) A. Gray | Accepted |  | TRO | 
	
		| Phacelia cumingii var. frigida (Phil.) Brand | Synonym |  | TRO | 
	
		| Phacelia cumingii var. grandis (Phil.) Reiche | Synonym |  | TRO | 
	
		| Phacelia cumingii var. litoralis (Phil.) Reiche | Synonym |  | TRO | 
	
		| Phacelia cumingii var. pusilla (Phil.) Reiche | Synonym |  | TRO | 
	
		| Phacelia curvipes Parry | Unresolved |  | WCSP (in review) | 
	
		| Phacelia curvipes Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia curvipes var. davidsonii (A. Gray) Brand | Unresolved |  | TRO | 
	
		| Phacelia curvipes var. insularis (Munz) Jeps. | Synonym |  | TRO | 
	
		| Phacelia curvipes var. macrantha (Parish) Munz | Unresolved |  | TRO | 
	
		| Phacelia curvipes f. macrantha (Parish) Brand | Synonym |  | TRO | 
	
		| Phacelia curvipes var. pratensis (A. Heller) Brand | Unresolved |  | TRO | 
	
		| Phacelia dalesiana J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia dasyphylla Greene ex J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia dasyphylla var. ophitidis J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia davidsonii A. Gray | Synonym |  | TRO | 
	
		| Phacelia davidsonii var. macrantha Parish | Synonym |  | TRO | 
	
		| Phacelia decumbens Greene | Synonym |  | TRO | 
	
		| Phacelia demissa A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia denticulata Osterh. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia depauperata Wooton & Standl. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia deserta A. Nelson | Synonym |  | TRO | 
	
		| Phacelia dissecta (A. Gray) Small | Accepted |  | TRO | 
	
		| Phacelia distans Benth. | Accepted |  | TRO | 
	
		| Phacelia distans var. scabrella (Greene) Brand | Accepted |  | TRO | 
	
		| Phacelia divaricata (Benth.) A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia divaricata var. congdonii (Greene) Munz | Synonym |  | TRO | 
	
		| Phacelia divaricata var. continentis (J.T. Howell) Munz | Synonym |  | TRO | 
	
		| Phacelia divaricata var. insularis (Munz) Munz | Synonym |  | TRO | 
	
		| Phacelia divaricata subsp. wrangeliana (Fisch. & C.A.Mey.) A.E.Murray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia dociana Jeps. & Hoover | Unresolved |  | WCSP (in review) | 
	
		| Phacelia douglasii Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia douglasii var. cryptantha Brand | Synonym |  | TRO | 
	
		| Phacelia dubia (L.) Trel. | Accepted |  | TRO | 
	
		| Phacelia dubia var. gilioides (Brand) Gleason | Synonym |  | TRO | 
	
		| Phacelia dubia var. hirsuta (Nutt.) Trel. | Synonym |  | TRO | 
	
		| Phacelia dubia var. interior Fernald | Synonym |  | TRO | 
	
		| Phacelia egena (Brand) J.T. Howell | Accepted |  | TRO | 
	
		| Phacelia eisenii Brandegee | Unresolved |  | WCSP (in review) | 
	
		| Phacelia endiplus Steud. | Synonym |  | TRO | 
	
		| Phacelia eremophila Greene | Synonym |  | TRO | 
	
		| Phacelia exilis G. J. Lee | Accepted |  | TRO | 
	
		| Phacelia eximia Eastw. | Synonym |  | TRO | 
	
		| Phacelia fallax Fernald | Synonym |  | TRO | 
	
		| Phacelia fastigiata Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia filiae N.D.Atwood, F.J.Sm. & T.A.Knight | Unresolved |  | WCSP (in review) | 
	
		| Phacelia filiformis Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia fimbriata Michx. | Accepted |  | TRO | 
	
		| Phacelia fimbriata var. boykinii A. Gray | Synonym |  | TRO | 
	
		| Phacelia firmomarginata A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia flaccida Elmer | Unresolved |  | WCSP (in review) | 
	
		| Phacelia floribunda Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia foetida Goodd. | Synonym |  | TRO | 
	
		| Phacelia foliosa Phil. | Synonym |  | TRO | 
	
		| Phacelia foliosepala A.Nelson & J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia formosula Osterh. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia franklinii (R. Br.) A. Gray | Accepted |  | TRO | 
	
		| Phacelia fremontii Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia frigida Greene | Synonym |  | TRO | 
	
		| Phacelia frigida subsp. dasyphylla (Greene ex J.F. Macbr.) Heckard | Synonym |  | TRO | 
	
		| Phacelia frigida subsp. frigida | Synonym |  | TRO | 
	
		| Phacelia furcata Douglas ex Hook. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia furnissii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia gentryi Constance | Unresolved |  | WCSP (in review) | 
	
		| Phacelia geraniifolia Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia gilioides Brand | Accepted |  | WCSP (in review) | 
	
		| Phacelia glaberrima (Torr. ex S. Watson) J.T. Howell | Accepted |  | TRO | 
	
		| Phacelia glabra Nutt. | Accepted |  | TRO | 
	
		| Phacelia glandulifera Piper | Synonym |  | TRO | 
	
		| Phacelia glandulosa Nutt. | Synonym |  | TRO | 
	
		| Phacelia glandulosa var. deserta (A. Nelson) Brand | Unresolved |  | TRO | 
	
		| Phacelia glandulosa var. neomexicana (Thurb. ex Torr.) A. Gray | Unresolved |  | TRO | 
	
		| Phacelia glandulosa subsp. splendens (Eastw.) Brand | Unresolved |  | TRO | 
	
		| Phacelia glechomifolia A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia gooddingii Brand | Synonym |  | TRO | 
	
		| Phacelia grandiflora A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia greenei J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia grisea A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia gymnoclada Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia gypsogenia I.M. Johnst. | Accepted |  | TRO | 
	
		| Phacelia hallii Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hardhamae Munz | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hastata Douglas ex Lehm. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hastata var. alpina (Rydb.) Cronquist | Unresolved |  | TRO | 
	
		| Phacelia hastata subsp. compacta (Brand) Heckard | Unresolved |  | TRO | 
	
		| Phacelia hastata var. compacta (Brand) Cronquist | Synonym |  | TRO | 
	
		| Phacelia hastata var. dasyphylla (Greene ex J.F. Macbr.) Kartesz & Gandhi | Unresolved |  | TRO | 
	
		| Phacelia hastata subsp. hastata | Unresolved |  | TRO | 
	
		| Phacelia hastata var. leptosepala (Rydb.) Cronquist | Unresolved |  | TRO | 
	
		| Phacelia hastata var. leucophylla (Torr.) Cronquist | Unresolved |  | TRO | 
	
		| Phacelia heterophylla Pursh | Accepted |  | TRO | 
	
		| Phacelia heterophylla var. alpina (Rydb.) A. Nelson | Synonym |  | TRO | 
	
		| Phacelia heterophylla var. compacta (Brand) Jeps. | Synonym |  | TRO | 
	
		| Phacelia heterophylla var. dasyphylla (Greene ex J.F. Macbr.) Jeps. | Synonym |  | TRO | 
	
		| Phacelia heterophylla f. frigida (Greene) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia heterophylla var. frigida (Greene) Jeps. | Synonym |  | TRO | 
	
		| Phacelia heterophylla var. griseophylla (Brand) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia heterophylla f. ophitidis (J.F. Macbr.) Dundas | Accepted |  | TRO | 
	
		| Phacelia heterophylla var. pseudohispida (Brand) Cronquist | Accepted |  | TRO | 
	
		| Phacelia heterophylla var. rotundata Dundas | Synonym |  | TRO | 
	
		| Phacelia heterophylla subsp. virgata (Greene) Heckard | Synonym |  | TRO | 
	
		| Phacelia heterophylla var. virgata (Greene) Dorn | Accepted |  | TRO | 
	
		| Phacelia heterosepala Greene | Synonym |  | TRO | 
	
		| Phacelia heterosperma Parish. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia higginsii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hintoniorum B.L. Turner | Accepted |  | TRO | 
	
		| Phacelia hirsuta Nutt. | Accepted |  | TRO | 
	
		| Phacelia hispida (A. Gray) A. Gray | Synonym |  | TRO | 
	
		| Phacelia hispida Buckley | Synonym |  | TRO | 
	
		| Phacelia hispida var. eximia (Eastw.) J.W. Voss | Synonym |  | TRO | 
	
		| Phacelia hispida var. heterosepala (Greene) J.W. Voss | Synonym |  | TRO | 
	
		| Phacelia hispida var. hubbyi J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia hispida var. umbrosa (Greene) Brand | Unresolved |  | TRO | 
	
		| Phacelia hossei Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia howelliana N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia howellii J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hughesii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia humilis Torr. & A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia humilis var. congdonii (Greene) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia humilis var. lobata Davidson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia hydrophylloides Torr. ex A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia idahoensis L.F. Hend. | Synonym |  | TRO | 
	
		| Phacelia imbricata Greene | Synonym |  | TRO | 
	
		| Phacelia imbricata subsp. bernardina (Greene) Heckard | Synonym |  | TRO | 
	
		| Phacelia imbricata subsp. imbricata | Unresolved |  | TRO | 
	
		| Phacelia imbricata subsp. patula (Brand) Heckard | Unresolved |  | TRO | 
	
		| Phacelia incana Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia inconspicua Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia indecora J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia infundibuliformis Torr. | Accepted |  | TRO | 
	
		| Phacelia insularis Munz | Synonym |  | TRO | 
	
		| Phacelia insularis var. continentis J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia insularis var. insularis | Unresolved |  | TRO | 
	
		| Phacelia integrifolia Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia integrifolia var. arenicola (Brandegee) Brand | Unresolved |  | TRO | 
	
		| Phacelia integrifolia var. palmeri (Torr. ex S. Watson) A. Gray | Unresolved |  | TRO | 
	
		| Phacelia integrifolia var. robusta J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia integrifolia var. texana (J.W. Voss) N.D. Atwood | Unresolved |  | TRO | 
	
		| Phacelia intermedia Wooton | Unresolved |  | WCSP (in review) | 
	
		| Phacelia inundata J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia invenusta A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia inyoensis (J.F. Macbr.) J.T. Howell | Accepted |  | TRO | 
	
		| Phacelia irritans Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia ivesiana Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia ivesiana f. campestris (A. Nelson) Brand | Unresolved |  | TRO | 
	
		| Phacelia ivesiana f. glandulifera (Piper) Brand | Unresolved |  | TRO | 
	
		| Phacelia ivesiana var. pediculoides J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia ixodes Kellogg | Unresolved |  | WCSP (in review) | 
	
		| Phacelia ixodes var. plumosa (Kellogg) Brand | Unresolved |  | TRO | 
	
		| Phacelia keckii Munz & I.M. Johnst. | Synonym |  | TRO | 
	
		| Phacelia knightii A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia laxa Small | Accepted |  | TRO | 
	
		| Phacelia laxiflora J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia leibergii Brand | Synonym |  | TRO | 
	
		| Phacelia lemmonii A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia lenta Piper | Unresolved |  | WCSP (in review) | 
	
		| Phacelia leonis J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia leptosepala Rydb. | Synonym |  | TRO | 
	
		| Phacelia leptostachya Greene | Unresolved |  | TRO | 
	
		| Phacelia leucantha Lemmon ex Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia leucophylla Torr. | Synonym |  | TRO | 
	
		| Phacelia leucophylla f. alpina (Rydb.) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia leucophylla var. alpina (Rydb.) Dundas | Synonym |  | TRO | 
	
		| Phacelia leucophylla var. compacta (Brand) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia linearis (Pursh) Holz. | Accepted |  | TRO | 
	
		| Phacelia loasifolia Benth. | Synonym |  | TRO | 
	
		| Phacelia lobata (Davidson) Jeps. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia longipes Torr. ex A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia lutea (Hook. & Arn.) J.T. Howell | Accepted |  | TRO | 
	
		| Phacelia lutea var. glandulifera (Torr. ex S. Watson) Cronquist | Accepted |  | TRO | 
	
		| Phacelia lutea var. scopulina (A. Nelson) Cronquist | Accepted |  | TRO | 
	
		| Phacelia lutea var. submutica (J.T. Howell) Cronquist | Accepted |  | TRO | 
	
		| Phacelia luteopurpurea A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia lyallii (A.Gray) Rydb. | Accepted |  | WCSP (in review) | 
	
		| Phacelia lyonii A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia maculata Alph. Wood | Accepted |  | TRO | 
	
		| Phacelia madrensis Greenm. | Synonym |  | TRO | 
	
		| Phacelia magellanica (Lam.) Coville | Synonym |  | TRO | 
	
		| Phacelia magellanica f. alpina (Rydb.) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. amoena Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. andina Phil. ex Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. ballii Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. bernardina (Greene) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. californica (Cham.) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. californica (Cham.) Jeps. & L.H. Bailey | Unresolved |  | TRO | 
	
		| Phacelia magellanica var. calycosa (A. Gray) Jeps. & L.H. Bailey | Unresolved |  | TRO | 
	
		| Phacelia magellanica f. compacta Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. corymbosa (Jeps.) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia magellanica f. egena Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. frigida (Greene) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. frigida (Greene) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia magellanica f. genuina Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. griseophylla Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. griseophylla (Brand) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia magellanica var. heterophylla (Pursh) Kuntze | Synonym |  | TRO | 
	
		| Phacelia magellanica f. heterophylla (Pursh) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. heterophylla Jeps. | Synonym |  | TRO | 
	
		| Phacelia magellanica var. jacintensis (Dundas) Jeps. & Hoover | Unresolved |  | TRO | 
	
		| Phacelia magellanica f. leucophylla (Torr.) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. patula Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica var. patula (Brand) Jeps. | Synonym |  | TRO | 
	
		| Phacelia magellanica f. pinnata (Vahl) Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. plantaginea Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. robusta Brand | Synonym |  | TRO | 
	
		| Phacelia magellanica f. virgata (Greene) Brand | Synonym |  | TRO | 
	
		| Phacelia malviflora G.Don | Unresolved |  | WCSP (in review) | 
	
		| Phacelia malvifolia Cham. & Schltdl. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia malvifolia var. loasifolia (Benth.) Brand | Unresolved |  | TRO | 
	
		| Phacelia mammillarensis N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia marcescens Eastw. ex J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia marshal-johnstonii N.D. Atwood & Pinkava | Accepted |  | TRO | 
	
		| Phacelia menziesii Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia micrantha Torr. | Synonym |  | TRO | 
	
		| Phacelia micrantha var. bipinnatifida Torr. | Synonym |  | TRO | 
	
		| Phacelia minima J.F.Macbr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia minor (Harv.) Thell. ex Zimm. | Accepted |  | TRO | 
	
		| Phacelia minor var. campanularia (A. Gray) Jeps. | Accepted |  | TRO | 
	
		| Phacelia minutiflora J.W. Voss ex Munz | Synonym |  | TRO | 
	
		| Phacelia minutissima L.F.Hend. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia mohavensis A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia mohavensis var. exilis A. Gray | Synonym |  | TRO | 
	
		| Phacelia mollis J.F.Macbr. | Accepted |  | WCSP (in review) | 
	
		| Phacelia monoensis Halse | Unresolved |  | WCSP (in review) | 
	
		| Phacelia monosperma A.Nelson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia mustelina Coville | Unresolved |  | WCSP (in review) | 
	
		| Phacelia mutabilis Greene | Synonym |  | TRO | 
	
		| Phacelia mutabilis var. frigida (Greene) G.N. Jones | Synonym |  | TRO | 
	
		| Phacelia namatoides A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nana Wedd. | Accepted |  | TRO | 
	
		| Phacelia nashiana Jeps. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia neffii B.L. Turner | Accepted |  | TRO | 
	
		| Phacelia neglecta M.E.Jones | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nematostyla B.L.Rob. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nemophiloides Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nemoralis Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nemoralis var. mutabilis (Greene) J.F. Macbr. | Unresolved |  | TRO | 
	
		| Phacelia nemoralis var. pseudohispida Brand | Synonym |  | TRO | 
	
		| Phacelia neomexicana Thurb. ex Torr. | Synonym |  | TRO | 
	
		| Phacelia neomexicana var. alba (Rydb.) Brand | Unresolved |  | TRO | 
	
		| Phacelia nervosa Rydb. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nevadensis J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia novenmillensis Munz | Unresolved |  | WCSP (in review) | 
	
		| Phacelia nudicaulis Eastw. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia orbicularis Rydb. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia orbiculatis Rydb. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia orcuttiana A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia oreopola Heckard | Unresolved |  | WCSP (in review) | 
	
		| Phacelia oreopola subsp. simulans Heckard | Synonym |  | TRO | 
	
		| Phacelia orogenes Brand | Synonym |  | TRO | 
	
		| Phacelia pachyphylla A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pallida I.M. Johnst. | Accepted |  | TRO | 
	
		| Phacelia palmeri Torr. ex S. Watson | Synonym |  | TRO | 
	
		| Phacelia palmeri var. foetida (Goodd.) Brand | Unresolved |  | TRO | 
	
		| Phacelia parishii A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia parryi Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia parviflora Phil. | Synonym |  | TRO | 
	
		| Phacelia parviflora Pursh | Synonym |  | TRO | 
	
		| Phacelia parviflora var. hirsuta (Nutt.) A. Gray | Synonym |  | TRO | 
	
		| Phacelia patuliflora (Engelm. & A. Gray) A. Gray | Accepted |  | TRO | 
	
		| Phacelia patuliflora var. mexicana Brand | Synonym |  | TRO | 
	
		| Phacelia patuliflora var. teucriifolia (I.M. Johnst.) Constance | Accepted |  | TRO | 
	
		| Phacelia pauciflora S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia peckii J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pedicellata A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pediculoides (J.T. Howell) Constance | Accepted |  | TRO | 
	
		| Phacelia peirsoniana J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia perityloides Coville | Unresolved |  | WCSP (in review) | 
	
		| Phacelia perityloides var. laxiflora (J.T. Howell) Cronquist | Unresolved |  | TRO | 
	
		| Phacelia peruviana Spreng. | Synonym |  | TRO | 
	
		| Phacelia petiolata I.M.Johnst. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia petrosa N.D.Atwood, F.J.Sm. & T.A.Knight | Unresolved |  | WCSP (in review) | 
	
		| Phacelia phacelioides (Benth.) Brand | Accepted |  | TRO | 
	
		| Phacelia phyllomanica A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia piersoniae L.O.Williams | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pimpinelloides (Willd. ex Roem. & Schult.) A. Gray | Synonym |  | TRO | 
	
		| Phacelia pinetorum M.E. Jones | Synonym |  | TRO | 
	
		| Phacelia pinkavae N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pinnata (Ruiz & Pav.) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia pinnata var. pseudohispida (Brand) Dundas | Synonym |  | TRO | 
	
		| Phacelia pinnata var. robusta (Brand) J.F. Macbr. | Synonym |  | TRO | 
	
		| Phacelia pinnatifida Griseb. ex Wedd. | Accepted |  | TRO | 
	
		| Phacelia pinnatifida var. decumbens Brand | Synonym |  | TRO | 
	
		| Phacelia pinnatifida var. elatior Griseb. | Synonym |  | TRO | 
	
		| Phacelia pinnatifida var. lobulata Hicken | Synonym |  | TRO | 
	
		| Phacelia pinnatifida f. minor Hicken | Synonym |  | TRO | 
	
		| Phacelia pinnatifida var. robusta Wedd. | Synonym |  | TRO | 
	
		| Phacelia pinnatifida var. setigera (Phil.) Reiche | Synonym |  | TRO | 
	
		| Phacelia platycarpa (Cav.) Spreng. | Accepted |  | TRO | 
	
		| Phacelia platycarpa var. bursifolia (Willd. ex Roem. & Schult.) Constance | Accepted |  | TRO | 
	
		| Phacelia platycarpa var. madrensis (Greenm.) Constance | Accepted |  | TRO | 
	
		| Phacelia platyloba A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia plumosa Kellogg | Synonym |  | TRO | 
	
		| Phacelia polysperma Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia polystachya Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia popei Torr. & A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia popei var. arizonica (A. Gray) J.W. Voss | Unresolved |  | TRO | 
	
		| Phacelia popei var. similis (Wooton & Standl.) J.W. Voss | Unresolved |  | TRO | 
	
		| Phacelia potosina B.L.Turner | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pratensis A. Heller | Synonym |  | TRO | 
	
		| Phacelia pringlei A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pringlei var. orogenes (Brand) Jeps. | Unresolved |  | TRO | 
	
		| Phacelia procera A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia prostrata Brand | Synonym |  | TRO | 
	
		| Phacelia prunellifolia Bertero ex Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pubescens Peter | Synonym |  | TRO | 
	
		| Phacelia pubescens Poir. | Synonym |  | TRO | 
	
		| Phacelia pulchella A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia pulchella var. gooddingii (Brand) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia pulchella var. sabulonum J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia pulcherrima Constance | Unresolved |  | WCSP (in review) | 
	
		| Phacelia purpusii Brandegee | Unresolved |  | WCSP (in review) | 
	
		| Phacelia purshii Buckley | Accepted |  | TRO | 
	
		| Phacelia pusilla Buckley | Synonym |  | TRO | 
	
		| Phacelia quickii J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia racemosa A.Heller | Unresolved |  | WCSP (in review) | 
	
		| Phacelia rafaelensis N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia ramosissima Douglas ex Lehm. | Accepted |  | WCSP (in review) | 
	
		| Phacelia ramosissima f. decumbens (Greene) Brand | Accepted |  | TRO | 
	
		| Phacelia ramosissima var. eremophila (Greene) J.F. Macbr. | Accepted |  | TRO | 
	
		| Phacelia ramosissima var. hispida A. Gray | Synonym |  | TRO | 
	
		| Phacelia ramosissima var. latifolia (Torr.) Cronquist | Accepted |  | TRO | 
	
		| Phacelia ramosissima var. subsinuata (Greene) J.F. Macbr. | Accepted |  | TRO | 
	
		| Phacelia ramosissima f. suffrutescens (Parry) Brand | Accepted |  | TRO | 
	
		| Phacelia ranunculacea (Nutt.) Constance | Accepted |  | TRO | 
	
		| Phacelia rattanii A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia robusta (J.F. Macbr.) I.M. Johnst. | Accepted |  | TRO | 
	
		| Phacelia rotundifolia Torr. ex S.Watson | Unresolved |  | WCSP (in review) | 
	
		| Phacelia rudis Douglas ex A.DC. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia rugulosa Lemmon ex Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia rupestris Greene | Accepted |  | TRO | 
	
		| Phacelia rupicola B.L. Rob. & Fernald | Synonym |  | TRO | 
	
		| Phacelia rupicola var. madrensis (Greenm.) Brand | Synonym |  | TRO | 
	
		| Phacelia sabulonum (J.T. Howell) N.D. Atwood | Accepted |  | TRO | 
	
		| Phacelia salina (A. Nelson) J.T. Howell | Accepted |  | TRO | 
	
		| Phacelia sanzinii Hicken | Unresolved |  | WCSP (in review) | 
	
		| Phacelia saxicola A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia scabrella Greene | Synonym |  | TRO | 
	
		| Phacelia scariosa Brandegee | Unresolved |  | WCSP (in review) | 
	
		| Phacelia scopulina (A. Nelson) J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia scopulina var. submutica (J.T. Howell) Halse | Synonym |  | TRO | 
	
		| Phacelia secunda J.F.Gmel. | Accepted |  | WCSP (in review) | 
	
		| Phacelia secunda subsp. parviflora Constance | Synonym |  | TRO | 
	
		| Phacelia secunda subsp. pinnata (Ruiz & Pav.) Constance | Synonym |  | TRO | 
	
		| Phacelia secunda var. pinnata (Vahl) Deginani | Accepted |  | TRO | 
	
		| Phacelia secunda subsp. plantaginea Constance | Synonym |  | TRO | 
	
		| Phacelia sericea (Graham) A. Gray | Accepted |  | TRO | 
	
		| Phacelia sericea var. biennis (A. Nelson) Brand | Accepted |  | TRO | 
	
		| Phacelia sericea subsp. ciliosa (Rydb.) G.W. Gillett | Accepted |  | TRO | 
	
		| Phacelia sericea var. ciliosa Rydb. | Synonym |  | TRO | 
	
		| Phacelia sericea subsp. idahoensis (L.F. Hend.) Brand | Accepted |  | TRO | 
	
		| Phacelia sericea var. lyallii A.Gray | Synonym |  | WCSP (in review) | 
	
		| Phacelia sericea subsp. lyallii (A.Gray) Brand | Synonym |  | WCSP (in review) | 
	
		| Phacelia serrata J.W.Voss | Unresolved |  | WCSP (in review) | 
	
		| Phacelia setigera Phil. | Accepted |  | TRO | 
	
		| Phacelia setigera var. setigera | Accepted |  | TRO | 
	
		| Phacelia similis Wooton & Standl. | Synonym |  | TRO | 
	
		| Phacelia simplex Pers. | Synonym |  | TRO | 
	
		| Phacelia simplicifolia Colla | Synonym |  | TRO | 
	
		| Phacelia sinuata Phil. | Accepted |  | TRO | 
	
		| Phacelia sivinskii N.D.Atwood, P.J.Knight & Lowrey | Unresolved |  | WCSP (in review) | 
	
		| Phacelia sonoitensis S.P.McLaughlin | Unresolved |  | WCSP (in review) | 
	
		| Phacelia splendens Eastw. | Synonym |  | TRO | 
	
		| Phacelia stebbinsii Constance & Heckard | Unresolved |  | WCSP (in review) | 
	
		| Phacelia stellaris Brand | Accepted |  | TRO | 
	
		| Phacelia stimulans Eastw. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia strictiflora (Engelm. & A. Gray) A. Gray | Accepted |  | TRO | 
	
		| Phacelia suaveolens Greene | Unresolved |  | WCSP (in review) | 
	
		| Phacelia suaveolens var. keckii (Munz & I.M. Johnst.) J.T. Howell | Unresolved |  | TRO | 
	
		| Phacelia submutica J.T. Howell | Synonym |  | TRO | 
	
		| Phacelia subsinuata Greene | Synonym |  | TRO | 
	
		| Phacelia suffrutescens Parry | Synonym |  | TRO | 
	
		| Phacelia tanacetifolia Benth. | Accepted |  | WCSP (in review) | 
	
		| Phacelia tanacetifolia var. latifolia Torr. | Synonym |  | TRO | 
	
		| Phacelia tanacetifolia var. pseudodistans (Benth.) Brand | Synonym |  | TRO | 
	
		| Phacelia tenuifolia Harv. ex Torr. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia tenuipes Wooton & Standl. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia tetramera J.T.Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia teucriifolia I.M. Johnst. | Synonym |  | TRO | 
	
		| Phacelia texana J.W. Voss | Synonym |  | TRO | 
	
		| Phacelia thermalis Greene | Synonym |  | TRO | 
	
		| Phacelia trichostemoides Greene ex Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia trifoliata Gand. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia tripinnata Fisch., C.A.Mey. & Avé-Lall. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia umbrosa Greene | Synonym |  | TRO | 
	
		| Phacelia utahensis J.W.Voss | Unresolved |  | WCSP (in review) | 
	
		| Phacelia vallicola Congdon ex Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia vallis-mortae J.W.Voss | Unresolved |  | WCSP (in review) | 
	
		| Phacelia verna Howell | Unresolved |  | WCSP (in review) | 
	
		| Phacelia villosa Phil. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia vinifolia Paxton | Unresolved |  | WCSP (in review) | 
	
		| Phacelia violacea Brand | Unresolved |  | WCSP (in review) | 
	
		| Phacelia virgata Greene | Synonym |  | TRO | 
	
		| Phacelia virgata var. bernardina Greene | Synonym |  | TRO | 
	
		| Phacelia viscida (Benth.) Torr. | Accepted |  | TRO | 
	
		| Phacelia viscosa Phil. | Synonym |  | TRO | 
	
		| Phacelia vitifolia Steud. | Unresolved |  | WCSP (in review) | 
	
		| Phacelia vossii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia welshii N.D.Atwood | Unresolved |  | WCSP (in review) | 
	
		| Phacelia whitlavia A.Gray | Unresolved |  | WCSP (in review) | 
	
		| Phacelia whitlavia f. minor (Harv.) Brand | Synonym |  | TRO | 
	
		| Phacelia zaragozana B.L.Turner | Unresolved |  | WCSP (in review) |