Astranthium Nuttall. Common name: Western-daisy.
A genus of about 11 species, herbs, of sc. North America and Mexico.
ID notes: The lamina (plural: laminae) is the strap-shaped abaxial lip of the (typically 3-lobed) ray floret corollas. It is homologous with the abaxial lip of a bilabiate or pseudobilabiate corolla, in which it is typically oriented away from the center of the head.
References: Cronquist (1980); DeJong (1965); Nesom (2000b); Nesom (2006x) In Flora of North America Editorial Committee (2006b); Nesom (2015e). Show full citations.
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.




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