⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50084169, with some changes.
This name is a synonym of Philadelphus lewisii subsp. gordonianus (Lindl.) Munz.
The record derives from Tropicos which reports it as a synonym (record 50084169) with original publication details: Man. Fl. Pl. Calif. 466 466 1925.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:192811-2.