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

45. Erigeron consimilis Cronquist, Brittonia. 6: 186. 1947.

San Rafael fleabane

Erigeron compactus S. F. Blake var. consimilis (Cronquist) S. F. Blake

Perennials, 3–10 cm; taprooted, caudices branched. Stems erect (scapiform), finely strigose, eglandular. Leaves mostly basal (persistent; leaf bases broadened or not, not thickened and whitish-indurate); blades linear, 4–20 × 0.7–1.5 mm, cauline bractlike or absent, margins entire, faces densely and finely strigose. Heads 1. Involucres 6–8.5 × 11–22 mm. Phyllaries in 2–3(–4) series, hispido-hirsutulous (hairs relatively thick-based), inconspicuously glandular. Ray florets 30–55; corollas white or pinkish, sometimes with an abaxial lilac midstripe or drying purplish, 7–11 mm (tube and lamina bases densely strigoso-hirsute), laminae coiling, sometimes tardily. Disc corollas 4.3–6 mm. Cypselae 2.8–3.2 mm, 2-nerved, margins sparsely to densely velutinous-ciliate, faces glabrous; pappi: outer of setae, inner of 15–25(–35) bristles.

Flowering May–Jun. Sandy sites, semi-barrens, salt desert shrub, sagebrush, pinyon-juniper; 1600–2100 m; Ariz., Colo., Utah.


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