Difference between revisions of "Heliomeris hispida"
Torreya 18: 183. 1918.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Helianthinae | ||
Latest revision as of 21:12, 5 November 2020
Annuals, 10–90 cm (taprooted). Stems hispid. Leaves mostly alternate; blades lance-linear to linear, 20–100 × 1–3 mm, margins conspicuously ciliate at least 3/4 their lengths, hairs often than 0.5+ mm, faces hispid, abaxial sometimes gland-dotted. Heads (1–)3–15+. Peduncles 0.5–9 cm, lengths 1/10–1/3 leafy portions of stems. Involucres 9–14 mm diam. Paleae ovate to rectangular, 4.5–5.5 mm, prominently cuspidate. Phyllaries 5.5–10 mm. Ray florets 9–15; laminae oval to obovate, 6–13 mm. Disc florets 50+; corollas 2–3 mm. Cypselae black, 1.5–2.5 mm. 2n = 16.
Phenology: Flowering Jul–Oct.
Habitat: Saline marshes and meadows
Elevation: 1200–2200 m
Distribution
Calif., N.Mex., Utah, Mexico (Chihuahua, Sonora).
Discussion
Variety ciliata has been separated based on having less dense pubescence; W. F. Yates and C. B. Heiser (1979) felt that this is insufficient for taxonomic recognition, noting that the type collection of H. hispida includes both indument forms. Heliomeris hispida appears to be relatively rare.
Selected References
None.