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Lessingia micradenia
Also called Mount Tamalpais Lessingia
Lessingia micradenia is a rare species of flowering plant in the family Asteraceae known by the common name Mt. Tamalpais lessingia. It is endemic to the San Francisco Bay Area of California, where it occurs in areas with serpentine soils. The species is divided into two rare varieties, each with a limited occurrence on opposite sides of the Bay Area. Lessingia micradenia var. glabrata is found in several locations across Santa Clara County south of San Jose, while var. micradenia is known only from a few spots around Mount Tamalpais in Marin County.
This is a slender annual herb growing erect and varying in size from just a few centimeters to over half a meter tall, with spreading branches. It is often hairy or woolly in texture. The upper leaves are small and pointed, no more than 2 centimeters long, and the lower leaves are longer and wither early.
Crystal Springs lessingia · San Francisco lessingia · Valley lessingia · Woollyhead lessingia · Lemmon's lessingia · Sierra lessingia · Slenderstem lessingia · Sonoma lessingia · Spring lessingia · Wand lessingia · Vinegarweed
Text excerpted from the Wikipedia article Lessingia micradenia by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
