Senecio crassulus |
Senecio pudicus |
|
---|---|---|
mountain meadow butterweed, thick-leaf groundsel, thick-leaf ragwort |
bashful ragwort |
|
Habit | Perennials, (15–)20–50(–70) cm (rhizomes branched, ± woody). | Perennials or biennials (possibly winter annuals), 50–80 cm (caudices fibrous-rooted). |
Herbage | glabrous. |
glabrous. |
Stems | 1–(2–4). |
usually single, sometimes loosely clustered. |
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 narrowly lanceolate to oblanceolate, 8–15(–20+) × (0.5–)1–3(–4) cm, bases tapered, margins entire or dentate (mid and distal leaves sessile, bractlike). |
Ray florets | ± 8 or ± 13; corolla laminae 5–12 mm. |
0. |
Phyllaries | (± 8) ± 13 or ± 21, 5–9 mm, tips black (villous). |
usually ± 13, rarely ± 8, 5–9 mm, tips green. |
Calyculi | of (1–)3–6 linear to filiform bractlets (lengths to 1/3 phyllaries). |
of 2–6 lance-linear bractlets. |
Heads | (1–)4–12 in corymbiform arrays. |
nodding, (3–)8–16(–40+) in racemiform or paniculiform arrays. |
Cypselae | glabrous. |
glabrous. |
2n | = 40. |
|
Senecio crassulus |
Senecio pudicus |
|
Phenology | Flowering summer. | Flowering summer–early autumn. |
Habitat | Moist to drying hillsides, meadows, other open places in forest associations | Rocky, damp or drying hillsides, often coniferous and aspen woodlands |
Elevation | 2200–3700 m (7200–12100 ft) | 2400–3800 m (7900–12500 ft) |
Distribution |
CO; ID; MT; NM; NV; OR; SD; UT; WY
|
CO; NM; UT |
Source | FNA vol. 20, p. 551. | FNA vol. 20, p. 550. |
Parent taxa | Asteraceae > tribe Senecioneae > Senecio | Asteraceae > tribe Senecioneae > Senecio |
Sibling taxa | ||
Synonyms | S. lapathifolius, S. semiamplexicaulis | S. cernuus, Ligularia pudica |
Name authority | A. Gray: Proc. Amer. Acad. Arts 19: 54. (1883) | Greene: Pittonia 4: 118. (1900) |
Web links |