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Common (vernacular) names applied to California vascular plants

compiled by Elizabeth Painter

up to date as of May 1, 2016

Common names (also referred to as vernacular names) are applied differently at different times and places by different users. This list is compiled from many sources and is intended to be as comprehensive as possible. It is not intended to indicate which common name is correct or preferred. Please send comments about this page to Elizabeth Painter (

TaxonAcmispon haydonii
Family common name(s)legume; legumes; leguminosae; pea; bean; clover; pulse; pulses
Genus common name(s)acmispon
Species common name(s)Hayden's acmispon; Haydon's lotus; Haydon's hosackia; Haydon's trefoil; Hayden acmispon; Haydon lotus; Haydon hosackia; Haydon trefoil; pygmy lotus; pygmy deer-weed; pygmy deerweed; rock lotus; rock bird's-foot-trefoil; rock bird's-foot trefoil; rock birdsfoot trefoil
Common name(s) generally applied to other taxa or multiple taxatrefoil, deer-vetch, deer vetch, deervetch are applied to multiple Fabaceae taxa
NotesHaydon is a proper name, so upper case preferable; Haydons is an error
Synonymy: The Jepson Manual (1993), FNA, PLANTS, etcLotus haydonii (Orcutt) Greene; Hosackia haydonii Orcutt
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