| Lathyrus palustris L. | 
		Accepted | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. angustifolius S.Watson | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris f. angustifolius (Cout.) Bassler | 
		Accepted | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. exalatus (H.B. Cui) X.Y. Zhu | 
		Accepted | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris subsp. exalatus H.B. Cui | 
		Synonym | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. graminifolius S.Watson | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris f. latifolius (Lambertye) Bassler | 
		Accepted | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. latifolius Lambertye | 
		Synonym | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. linearifolius Ser. | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris f. linearifolius (Ser.) Bassler | 
		Synonym | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. macranthus (T.G.White) Fernald | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. myrtifolius (Willd.) A.Gray | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. nudicaulis Willk. | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris subsp. nudicaulis (Willk.) P.W.Ball | 
		Accepted | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris subsp. palustris  | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. palustris  | 
		Synonym | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. pilosus (Cham.) Ledeb. | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris subsp. pilosus (Cham.) Hulten | 
		Accepted | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. pubescens (H.B. Cui) X.Y. Zhu | 
		Accepted | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris f. pubescens H.B. Cui | 
		Synonym | 
		  | 
		TRO | 
		 | 
	
	
		| Lathyrus palustris var. retusus Fernald & St.John | 
		Synonym | 
		  | 
		ILDIS | 
		 | 
	
	
		| Lathyrus palustris var. sericea Franch. | 
		Synonym | 
		  | 
		ILDIS | 
		 |