Senecio crassulus |
Senecio astephanus |
|
---|---|---|
mountain meadow butterweed, thick-leaf groundsel, thick-leaf ragwort |
San Gabriel ragwort |
|
Habit | Perennials, (15–)20–50(–70) cm (rhizomes branched, ± woody). | Perennials, 40–100 cm (caudices unknown). |
Herbage | glabrous. |
unevenly floccose-lanate or tomentose, glabrescent. |
Stems | 1–(2–4). |
single. |
Leaves | (thickish-turgid) progressively reduced distally; petiolate; blades broadly lanceolate to subelliptic, 2.5–15 × 1–5 cm, bases tapered, margins sharply dentate to subentire (some teeth callous; mid leaves sometimes larger than proximal; distal leaves sessile, smaller, often clasping). |
progressively reduced distally; petiolate; blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike). |
Ray florets | ± 8 or ± 13; corolla laminae 5–12 mm. |
0. |
Phyllaries | (± 8) ± 13 or ± 21, 5–9 mm, tips black (villous). |
± 21, 7–8 mm, tips greenish. |
Calyculi | of (1–)3–6 linear to filiform bractlets (lengths to 1/3 phyllaries). |
of 5–8+ lance-linear to filiform bractlets (lengths 1/3–7/8 phyllaries). |
Heads | (1–)4–12 in corymbiform arrays. |
10–20+ in loose or congested, cymiform arrays. |
Cypselae | glabrous. |
glabrous. |
2n | = 40. |
= 40. |
Senecio crassulus |
Senecio astephanus |
|
Phenology | Flowering summer. | Flowering spring. |
Habitat | Moist to drying hillsides, meadows, other open places in forest associations | Steep, rocky slopes |
Elevation | 2200–3700 m (7200–12100 ft) | 400–1500 m (1300–4900 ft) |
Distribution |
CO; ID; MT; NM; NV; OR; SD; UT; WY
|
CA |
Discussion | Of conservation concern. Senecio astephanus is collected infrequently. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 551. | FNA vol. 20, p. 553. |
Parent taxa | Asteraceae > tribe Senecioneae > Senecio | Asteraceae > tribe Senecioneae > Senecio |
Sibling taxa | ||
Synonyms | S. lapathifolius, S. semiamplexicaulis | |
Name authority | A. Gray: Proc. Amer. Acad. Arts 19: 54. (1883) | Greene: Pittonia 1: 174. (1888) |
Web links |