Lessingia tenuis
Lessingia arachnoidea
spring lessingia
Crystal Springs lessingia
erect, green to tan, glabrous or villous.
erect, tan, glabrous or villous.
basal withering by flowering;
cauline margins entire or dentate to pinnately lobed, faces sometimes gland-dotted, abaxial villous to tomentose.
basal withering by flowering;
cauline margins entire, faces eglandular, abaxial glabrous or villous.
obconic, 4–7 mm.
obconic, 4–8 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.
(3–)8–18;
corollas pink to lavender (color more intense in tubes);
style-branch appendages truncate-penicillate, 0.1–0.3 mm.
purple-tipped, faces glabrous or villous, gland-dotted;
inner scarious.
purple-tipped, faces arachnose, sometimes gland-dotted;
inner scarious.
borne singly, at ends of branchlets.
borne singly, at ends of branchlets.
tan, equal to or longer than cypselae.
tan, usually shorter than cypselae, sometimes forming coronas, rarely equaling or longer than cypselae (Sonoma County).
= 10.
= 10.
Lessingia tenuis
Lessingia arachnoidea
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.)
Of conservation concern.
Lessingia arachnoidea is known from near Crystal Springs Reservoir in San Mateo County and near Camp Meeker in Sonoma County. Previous circumscriptions of L. arachnoidea (pappi shorter than cypselae, forming coronas) have been expanded to include plants (from Sonoma County) with pappi equaling or longer than cypselae. Alternatively, the plants with longer pappi could have been accommodated in L. ramulosa (as a glandless form); the absence of basal leaves at flowering and the presence of arachnoid indument on the phyllaries suggest a closer affinity to L. arachnoidea.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
