Senecio neowebsteri |
Senecio astephanus |
|
---|---|---|
Olympic Mountain ragwort |
San Gabriel ragwort |
|
Habit | Perennials, 7–15(–20+) cm (rhizomes fibrous-rooted). | Perennials, 40–100 cm (caudices unknown). |
Herbage | (sometimes purplish-tinged) floccose-tomentose, unevenly glabrescent. |
unevenly floccose-lanate or tomentose, glabrescent. |
Stems | single or loosely clustered (erect or arching). |
single. |
Leaves | mostly cauline; petiolate (petioles about equaling blades); blades lanceolate or oblanceolate to ovate, (2–)4–8+ × 1.5–3 cm, bases tapered, margins denticulate (distal leaves smaller, lanceolate or linear-lanceolate, bractlike). |
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 | ± 13; corolla laminae ± 15 mm. |
0. |
Phyllaries | usually ± 21, sometimes ± 13, (8–)10–15 mm, tips usually greenish (often sparsely hairy). |
± 21, 7–8 mm, tips greenish. |
Calyculi | of 4–8 lanceolate to lance-linear bractlets (lengths mostly less than 1/2 phyllaries). |
of 5–8+ lance-linear to filiform bractlets (lengths 1/3–7/8 phyllaries). |
Heads | nodding, 1(–2). |
10–20+ in loose or congested, cymiform arrays. |
Cypselae | glabrous. |
glabrous. |
2n | = 40. |
= 40. |
Senecio neowebsteri |
Senecio astephanus |
|
Phenology | Flowering late summer–early fall. | Flowering spring. |
Habitat | High talus slopes | Steep, rocky slopes |
Elevation | 2200–2600 m (7200–8500 ft) | 400–1500 m (1300–4900 ft) |
Distribution |
WA
|
CA |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Senecio astephanus is collected infrequently. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 553. | FNA vol. 20, p. 553. |
Parent taxa | Asteraceae > tribe Senecioneae > Senecio | Asteraceae > tribe Senecioneae > Senecio |
Sibling taxa | ||
Synonyms | S. websteri | |
Name authority | S. F. Blake: Leafl. W. Bot. 8: 143. (1957) | Greene: Pittonia 1: 174. (1888) |
Web links |