Difference between revisions of "Psilostrophe sparsiflora"
Proc. Biol. Soc. Wash. 16: 23. 1903.
Endemic
Basionym: Riddellia tagetina var. sparsiflora A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 318. 1884
Treatment appears in FNA Volume 21. Treatment on page 454.
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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 20:08, 5 November 2020
Biennials or perennials (rarely flowering first year), 10–40+ cm. Stems ± strigillose (greenish, sometimes ± villous in proximal axils). Heads in ± corymbiform arrays. Peduncles 8–12(–25+) mm. Involucres 4–6 mm. Ray florets (1–)2–3(–4); corolla laminae (6–)8–10+ mm, reflexed in fruit. Disc florets 7–9. Cypselae usually glabrous, sometimes gland-dotted; pappi of 4–5 lanceolate to lance-subulate scales 2–3 mm. 2n = 32.
Phenology: Flowering May–Sep.
Habitat: Grasslands, pinyon-juniper scrub, sagebrush scrub, yellow pine forests
Elevation: 900–2200 m
Distribution
Ariz., N.Mex., Utah.
Discussion
Selected References
None.
Lower Taxa
None.