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tall blacktip ragwort
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Warnock's ragwort
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| Perennials, (20–)35–70(–80+) cm (rhizomes or caudices branched, erect to weakly creeping). |
Subshrubs, 20–40 cm (taproots forming woody crowns). |
floccose-tomentose to canescent, sometimes unevenly glabrescent. |
closely, unevenly lanate-floccose, glabrescent. |
1–(2–5). |
usually multiple (strict or nearly so, arching-erect). |
progressively reduced distally; petiolate; blades oblong-ovate to oblanceolate, (5–)10–30 × 1.5–4(–6) cm, bases tapered, margins dentate (denticles, dark, callous; mid leaves similar, sessile, smaller; distal leaves bractlike). |
(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. |
(± 3) ± 5; corolla laminae 5–8 mm. |
usually ± 8, rarely 0; corolla laminae 5–10 mm. |
(± 5) ± 8, 6–8 mm, tips black. |
± 13, 5–8 mm, tips green or minutely black. |
of 2–5 linear bractlets (lengths to 1/3 phyllaries). |
0 or of 3–5 bractlets (lengths less than 1/2 phyllaries). |
20–60+ in corymbiform or subpaniculiform arrays. |
3–10 in corymbiform arrays (involucres weakly campanulate). |
glabrous. |
glabrous. |
= 40. (A report of 2n = 46 is presumably erroneous.) |
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| Flowering late spring–early fall. |
Flowering fall (perhaps spring–summer). |
| Dry or drying, rocky or sandy sites in coniferous areas, especially sites with frequent disturbance |
Open sites, gypseous soils |
| 2800–4000 m (9200–13100 ft) |
800–1500 m (2600–4900 ft) |
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CO; NM; UT; WY
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NM; TX |
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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. 554. |
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. 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. 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. atratus var. milleflorus, S. milleflorus |
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| Greene: Pittonia 3: 105. (1896) |
Shinners: Sida 1: 379. (1964) |
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SW CO Wildflowers
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