Erigeron watsonii(A. Gray) Cronquist [family ASTERACEAE ] (stored under name); Verified by Not on sheet, Isotype of Aster watsoniiA. Gray [family ASTERACEAE ] Verified by Not on sheet, Aster glacialisNutt. [family ASTERACEAE ] Verified by Not on sheet,
Related name
Aster watsonii
Aster glacialis
Erigeron watsonii
Common name
Watson’s fleabane, Flora of North America Vol. 20
Flora
Entry for Erigeron watsonii (A. Gray) Cronquist [family COMPOSITAE]
Perennials, 3–10 cm; taprooted, caudices sometimes multicipital, branches relatively short and thick, sometimes relatively long and slender. Stems ascending to decumbent-ascending, glabrous, eglandular. Leaves mostly basal (persistent); blades narrowly oblanceolate to spatulate (often folding), 15–60 × 1–5 mm, cauline abruptly reduced distally, margins entire, abaxial faces glabrous, adaxial sparsely strigose, eglandular. Heads 1(–2). Involucres 4–7 × 5–10 mm. Phyllaries in 2–3 series (inner usually with purple margins), glabrous, minutely glandular. Ray florets 13–25, corollas white to pink, 4–6 mm, laminae not coiling or reflexing, spreading. Disc corollas 2.8–4 mm. Cypselae 2–3.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 25–35 (straw-colored, dull) bristles.
