Lessingia tenuis
Lessingia hololeuca
spring lessingia
woolly-head lessingia
erect, green to tan, glabrous or villous.
usually erect, rarely decumbent, tan, villous to tomentose.
basal withering by flowering;
cauline margins entire or dentate to pinnately lobed, faces sometimes gland-dotted, abaxial villous to tomentose.
basal persistent at flowering;
cauline margins entire, faces eglandular, abaxial tomentose (± glabrescent).
obconic, 4–7 mm.
broadly obconic, (5–)8–13 mm.
10–25;
corollas yellow (occasionally pink or suffused with purple in peripheral florets; tubes with brown-purple band inside);
style-branch appendages truncate-penicillate, 0.1–0.2 mm.
10–20;
corollas lavender (color more intense in tubes);
style-branch appendages lanceolate, 0.4–0.8 mm.
purple-tipped, faces glabrous or villous, gland-dotted;
inner scarious.
purple-tipped, faces tomentose, eglandular;
inner scarious.
borne singly, at ends of branchlets.
borne singly or in corymbiform arrays, usually at ends of branchlets.
tan, equal to or longer than cypselae.
tan, equaling or longer than cypselae.
= 10.
= 10.
Lessingia tenuis
Lessingia hololeuca
Lessingia tenuis is known from the central and southern San Francisco Bay area through the South Coast Range to Ventura County.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lessingia hololeuca is known from the San Francisco Bay area, southern Sacramento Valley, and southern North Coast Range. Plants from near Calistoga in Napa County that occur on geothermally influenced, alkali soils are somewhat distinct from other populations (leaves are persistently tomentose and are more crowded).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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