Senecio sphaerocephalus

Greene

Pittonia 3: 106. 1896.

Endemic
Synonyms: Senecio altus Rydberg Senecio latus Rydberg Senecio lugens var. hookeri D. C. Eaton
Treatment appears in FNA Volume 20. Treatment on page 555. Mentioned on page 547, 558.
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Perennials, (30–)40–80 cm (rhizomes stout). Herbage tomentose, unevenly glabrescent. Stems single. Leaves reduced distally; petiolate; blades oblanceolate to elliptic, 4–12× 1–4 cm, bases tapered, margins weakly dentate or denticulate (denticles callous; mid leaves similar, smaller; distal leaves bractlike). Heads (3–)5–24 in corymbiform arrays. Calyculi of 1–5 bractlets (longest 2–3 mm). Phyllaries (± 13) ± 21, 3–7 mm, tips black or brownish. Ray florets ± 13; corolla laminae 6–10 mm. Cypselae usually hairy, sometimes glabrous. 2n = 40.


Phenology: Flowering spring–early summer.
Habitat: Open meadows, especially in coniferous associations
Elevation: 1000–1800 m

Distribution

V20-1228-distribution-map.gif

Idaho, Mont., Nev., Oreg., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Senecio sphaerocephalus"
Theodore M. Barkley† +
Greene +
Idaho +, Mont. +, Nev. +, Oreg. +, Utah +  and Wyo. +
1000–1800 m +
Open meadows, especially in coniferous associations +
Flowering spring–early summer. +
Senecio altus +, Senecio latus +  and Senecio lugens var. hookeri +
Senecio sphaerocephalus +
species +