Lessingia arachnoidea
Lessingia nana
Crystal Springs lessingia
dwarf lessingia, little lessingia
erect, tan, glabrous or villous.
decumbent, tan, woolly.
basal withering by flowering;
cauline margins entire, faces eglandular, abaxial glabrous or villous.
basal withering by flowering;
cauline margins entire, faces gland-dotted (in pits), abaxial woolly.
obconic, 4–8 mm.
obconic, 7–10 mm.
(3–)8–18;
corollas pink to lavender (color more intense in tubes);
style-branch appendages truncate-penicillate, 0.1–0.3 mm.
10–20;
corollas white or pale lavender (color more intense in tubes);
style-branch appendages truncate-penicillate, 0.2–0.4 mm.
purple-tipped, faces arachnose, sometimes gland-dotted;
inner scarious.
green, faces woolly, gland-dotted;
inner cartilaginous (stiff, white).
borne singly, at ends of branchlets.
borne singly or in corymbiform arrays, in axils of leaves or at ends of branchlets.
tan, usually shorter than cypselae, sometimes forming coronas, rarely equaling or longer than cypselae (Sonoma County).
pink to red, longer than cypselae.
= 10.
= 10.
Lessingia arachnoidea
Lessingia nana
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.)
Lessingia nana is known from the northern Great Central Valley, adjacent foothills of the Sierra Nevada, and foothills of the Cascade Range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
