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FNA | Family List | FNA Vol. 20 | Asteraceae | Erigeron

120. Erigeron algidus Jepson, Man. Fl. Pl. Calif. 1052. 1925.

Stalked fleabane

Perennials, 2–30 cm; rhizomatous, fibrous-rooted, caudex or rhizome branches relatively short and thick. Stems erect, sparsely villoso-hirsute, minutely glandular. Leaves mostly basal (persistent); blades obovate to oblanceolate, 10–70 × 2–7(–12) mm, cauline abruptly reduced distally, margins entire (apices rounded), faces strigose to strigoso-hirsute, sometimes sparsely glandular. Heads 1. Involucres 5–8 × 8–18 mm. Phyllaries in (2–)3–4 series (often purplish throughout or at margins and tips), hirsute to hirsuto-villous (hair cross walls not colored), minutely glandular. Ray florets 25–125; corollas blue to pink or purple, 5–13 mm (mostly 1–2 mm wide), laminae coiling. Disc corollas 3–4.8 mm. Cypselae 1.9–2.1 mm, 2-nerved, faces strigose; pappi: outer of setae, inner of 10–15(–20) bristles.

Flowering Jul–Aug. Rocky sites and meadows, alpine or near timberline; of conservation concern; 2600–3700 m; Calif., Nev.


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