Difference between revisions of "Perityle megalocephala"
Contr. Gray Herb. 56: 39. 1918.
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|publication year=1918 | |publication year=1918 | ||
|special status=Illustrated;Endemic | |special status=Illustrated;Endemic | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | ||
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[[Category:Treatment]] | [[Category:Treatment]] | ||
[[Category:Perityle sect. Laphamia]] | [[Category:Perityle sect. Laphamia]] | ||
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Latest revision as of 19:25, 6 November 2020
Perennials or subshrubs, 15–55 cm (often dense, profusely branched clumps, sparsely leafy); densely hirtellous. Leaves: petioles 1–6 mm; blades usually elliptic, lanceolate, lance-ovate, ovate, or suborbiculate, sometimes linear, 4–8(–15) × 1–10(–12) mm, margins entire, irregularly and sparsely serrate, or serrate-lobed. Heads borne singly or (2–3) in loose, corymbiform arrays, 6–9(–10) × 5–6(–8) mm. Peduncles 10–45(–80) mm. Involucres campanulate. Phyllaries 14–20, lanceolate to suboblanceolate, 5–6 × 1.3–1.9 mm. Ray florets 0. Disc florets 45–60; corollas yellow, tubes 1–1.6 mm, throats tubular to subfunnelform, 1.6–2.2 mm, lobes 0.4–0.7 mm. Cypselae narrowly oblanceolate to suboblanceolate, 2.5–3 mm, margins thin-calloused, short-hairy; pappi 0, or of single bristles.
Distribution
Calif., Nev.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Leaf blades ovate, lanceolate-ovate or elliptic to suborbiculate | Perityle megalocephala var. megalocephala |
| 1 | Leaf blades linear to lanceolate | Perityle megalocephala var. oligophylla |