Difference between revisions of "Senecio rapifolius"
Trans. Amer. Philos. Soc., n. s. 7: 409. 1841.
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Senecio | |genus=Senecio | ||
Revision as of 16:18, 18 September 2019
Perennials, (20–)30–60 cm (rhizomes branched, spreading or suberect). Herbage (unevenly purple-tinged, often glaucous) glabrous. Stems 1–(2–3). Leaves progressively reduced distally; petiolate; blades ovate to oblanceolate, 4–8(–9+) × (2–)3–5 cm, bases tapered, margins dentate to incised-dentate (some denticles callous; mid leaves similar, smaller, ± clasping; distal leaves bractlike). Heads 25–60+ in cymiform clusters of 3–12. Calyculi 0 or of 1–3+ lance-deltate to lance-linear bractlets (mostly less than 1 mm). Phyllaries (± 5) ± 8, 3–4(–5) mm, tips green or brownish. Ray florets 0. Cypselae glabrous. 2n = 40.
Phenology: Flowering late summer–early fall.
Habitat: Rocky hillsides and cliffs in coniferous wooded areas
Elevation: 1800–2800 m
Distribution
Colo., Idaho, S.Dak., Wyo.
Discussion
Selected References
None.
Lower Taxa
None.