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FNA | Family List | FNA Vol. 21 | Asteraceae | Stevia

5a. Stevia plummerae A. Gray var. plummerae

Stevia plummerae var. alba A. Gray

Perennials, 30–80 cm. Leaves mostly opposite (distal sometimes alternate); petioles 0–3(–5) mm; blades (raised venation reticulate, including secondary and tertiary veins) lanceolate, lance-ovate, or oblanceolate, (2–)3–10 cm, margins coarsely serrate. Heads in ± congested, compact clusters. Peduncles 0 or 1–4 mm, villous-puberulent. Involucres (5.5–)6–8.5 mm. Phyllaries eglandular or very sparsely glandular, sparsely villous-puberulent, apices usually rounded to blunt or obtuse, sometimes acute. Corollas whitish, pale rose, pink, or red, lobes sparsely glandular and hispid-villous. Pappi shorter than corollas, sometimes coroniform. 2n = 34, 42.

Flowering (Aug–)Sep–Oct. Canyon walls, open slopes, oak to ponderosa pine or ponderosa pine-Douglas fir woodlands; 2100–2800 m; Ariz., N.Mex.; Mexico (Chihuahua, Durango, Sonora).


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