Anderson’s mountaincrown

Erigeron andersonii A. Gray, Proc. Amer. Acad. Arts 6: 540. 1865; Aster alpigenus (Torrey & A. Gray) A. Gray var. andersonii (A. Gray) M. Peck; Oreostemma alpigenum subsp. andersonii (A. Gray) Semple

Plants (4–)8–40(–70) cm. Basal leaf blades linear-oblanceolate to narrowly oblanceolate, (30–)80–120(–350) × (1–)2–6(–9) mm, apices acute. Cypselae strigillose. 2n = 18, 36.

Flowering Jun–Sep. Bogs (sometimes with Darlingtonia), marshes, moist to wet meadows, lake edges, pine woods, alpine tundra; (1200–)1500–3300(–3700) m; Calif., Nev., Oreg.