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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 (

TaxonSenecio astephanus
Family common name(s)composite; composita; comp; aster; asterwort; asterworts; sunflower; daisy; dandelion
Genus common name(s)senecio
Species common name(s)San Luis Obispo ragwort; San Luis Obispo butterweed; San Luis groundsel; San Gabriel ragwort
Common name(s) generally applied to other taxa or multiple taxabutterweed, butter-weed, butter weed, ragwort, rag-wort, groundsel, groundsell are applied to multiple Asteraceae taxa; fireweed, fire-weed, fire weed, sky-flower, sky flower are applied to taxa in multiple families
Common name(s), rejectednot recommended (possibly pejorative or derogatory): squaw-weed, squaw weed, squawweed; not recommended: Indian plantain
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