Townsendia strigosa


Trans. Amer. Philos. Soc., n. s. 7: 306. 1840.

Synonyms: Townsendia strigosa var. prolixa (M. E. Jones) S. L. Welsh
Treatment appears in FNA Volume 20. Treatment on page 199. Mentioned on page 195, 198.

Biennials, (1–)3–10(–20) cm. Stems decumbent to erect; internodes 5–25 mm, piloso-strigose to strigillose (surfaces seldom hidden by hairs). Leaves basal and cauline, blades spatulate to oblanceolate or linear, 12–30(–50) × 2–7(–9) mm, not fleshy, faces ± strigose to strigillose. Heads at tips of stems (usually surpassed by leaves). Involucres ± campanulate, 5–20 mm diam. Phyllaries 20–24 in 3–4+ series, the longer ± lance-ovate to lanceolate, 5–9 mm (l/w = 2.5–5), apices acute to acuminate, abaxial faces strigose. Ray florets 8–30+; corollas white or pinkish adaxially, laminae 5–14 mm, abaxially usually glabrous, sometimes glandular-puberulent. Disc florets (8–)20–80(–100+); corollas 3.5–5 mm. Cypselae 3–4 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 12–20+ lanceolate to subulate scales 0.5–1.5+ mm; on disc cypselae 20–35 subulate to setiform scales 3.5–5.5 mm. 2n = 18.

Phenology: Flowering May–Jun.
Habitat: Open sites, sands, shales, clays with desert scrub, junipers, pinyons
Elevation: 1500–2000 m



Ariz., Colo., N.Mex., Utah, Wyo.


Selected References


Lower Taxa