|
Elmer's butterweed, Elmer's ragwort
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Warnock's ragwort
|
| Perennials, 10–20(–30) cm (rhizomes trailing or branching). |
Subshrubs, 20–40 cm (taproots forming woody crowns). |
unevenly villous-tomentose or floccose, glabrescent. |
closely, unevenly lanate-floccose, glabrescent. |
single (from loosely clustered basal leaves). |
usually multiple (strict or nearly so, arching-erect). |
progressively reduced distally; ± petiolate; blades ovate to oblanceolate, (3–)4–8(–10) × 2–3(–4) cm, bases tapered, margins shallowly dentate (mid and distal leaves smaller, bractlike, often clasping). |
(often recurved and thickish-turgid) concentrated distally on stems; sessile or obscurely petiolate; blades narrowly linear to filiform (2–7 cm × 1 mm), bases ± linear, margins entire. |
± 8; corolla laminae 8–15 mm. |
usually ± 8, rarely 0; corolla laminae 5–10 mm. |
(± 8) ± 13, 8–10 mm, tips black (villous). |
± 13, 5–8 mm, tips green or minutely black. |
of 2–7 lance-linear to linear bractlets (lengths 1/3–2/3 phyllaries). |
0 or of 3–5 bractlets (lengths less than 1/2 phyllaries). |
erect or weakly nodding (especially in bud), (2–)5–9(–12) in loose, cymiform arrays. |
3–10 in corymbiform arrays (involucres weakly campanulate). |
glabrous. |
glabrous. |
= 40. |
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| Flowering summer. |
Flowering fall (perhaps spring–summer). |
| Alpine and subalpine rocky sites and talus slopes |
Open sites, gypseous soils |
| 2000–3000 m (6600–9800 ft) |
800–1500 m (2600–4900 ft) |
|
WA; BC
|
NM; TX |
|
Of conservation concern. Senecio warnockii is infrequently collected; additional study may show it to be an edaphic phase of S. flaccidus. The restriction to gypseous soils and the gross aspect combine to make it distinctive. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 20, p. 551. |
FNA vol. 20, p. 559. |
| Asteraceae > tribe Senecioneae > Senecio |
Asteraceae > tribe Senecioneae > Senecio |
S. actinella, S. amplectens, S. ampullaceus, S. aphanactis, S. arizonicus, S. aronicoides, S. astephanus, S. atratus, S. bigelovii, S. blochmaniae, S. californicus, S. cannabifolius, S. clarkianus, S. crassulus, S. elegans, S. eremophilus, S. ertterae, S. erucifolius, S. flaccidus, S. fremontii, S. hydrophiloides, S. hydrophilus, S. integerrimus, S. jacobaea, S. lemmonii, S. lugens, S. lyonii, S. megacephalus, S. mohavensis, S. multidentatus, S. neowebsteri, S. parryi, S. pattersonensis, S. pseudoarnica, S. pudicus, S. quaylei, S. rapifolius, S. riddellii, S. sacramentanus, S. scorzonella, S. serra, S. sheldonensis, S. soldanella, S. spartioides, S. sphaerocephalus, S. spribillei, S. squalidus, S. sylvaticus, S. taraxacoides, S. triangularis, S. viscosus, S. vulgaris, S. warnockii, S. wootonii |
S. actinella, S. amplectens, S. ampullaceus, S. aphanactis, S. arizonicus, S. aronicoides, S. astephanus, S. atratus, S. bigelovii, S. blochmaniae, S. californicus, S. cannabifolius, S. clarkianus, S. crassulus, S. elegans, S. elmeri, S. eremophilus, S. ertterae, S. erucifolius, S. flaccidus, S. fremontii, S. hydrophiloides, S. hydrophilus, S. integerrimus, S. jacobaea, S. lemmonii, S. lugens, S. lyonii, S. megacephalus, S. mohavensis, S. multidentatus, S. neowebsteri, S. parryi, S. pattersonensis, S. pseudoarnica, S. pudicus, S. quaylei, S. rapifolius, S. riddellii, S. sacramentanus, S. scorzonella, S. serra, S. sheldonensis, S. soldanella, S. spartioides, S. sphaerocephalus, S. spribillei, S. squalidus, S. sylvaticus, S. taraxacoides, S. triangularis, S. viscosus, S. vulgaris, S. wootonii |
| S. crepidineus |
|
| Piper: Erythea 7: 173. (1899) |
Shinners: Sida 1: 379. (1964) |
| |
BC
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
