Difference between revisions of "Psathyrotes pilifera"
Proc. Amer. Acad. Arts 19: 50. 1883.
Endemic
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
Latest revision as of 21:07, 5 November 2020
Annuals, 6–15 cm, glandular-pubescent, pilose, and furfuraceous. Stems erect and spreading. Leaf blades rounded-rhombic, 7–14 × 6–14 mm, margins entire (faces, at least abaxial, with straight, multicellular hairs 2–3+ mm). Peduncles 4–20 mm. Involucres narrowly cylindric, 7–9 mm. Phyllaries ca. 13, outer persistent, 5, lanceolate, tips erect, inner falling, 8, lance-linear, tips erect. Florets 9–14; corollas yellow, often purplish at tips, ca. 8 mm. Cypselae 4–5 mm; pappi of ca. 150 subequal bristles in 2–4 series, 6–7 mm. 2n = 34.
Phenology: Flowering sporadically following rains.
Habitat: Reddish, alkaline soils
Elevation: 500–1400 m
Distribution
Ariz., Nev., Utah.
Discussion
Selected References
None.
Lower Taxa
None.