|
mountain meadow butterweed, thick-leaf groundsel, thick-leaf ragwort
|
Arizona ragwort
|
| Perennials, (15–)20–50(–70) cm (rhizomes branched, ± woody). |
Perennials, (20–)30–40(–60) cm (rhizomes suberect or weakly spreading). |
glabrous. |
lanate-arachnose or tomentose, unevenly glabrescent. |
1–(2–4). |
1(–2). |
(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). |
(often purplish abaxially) reduced distally; petiolate; blades ovate to subelliptic, (5–)6–10(–15) × (2.5–)3–5(–9) cm, bases tapered or contracted, margins subentire to denticulate (denticles callous; mid and distal leaves bractlike). |
± 8 or ± 13; corolla laminae 5–12 mm. |
± 13; corolla laminae 5–10 mm. |
(± 8) ± 13 or ± 21, 5–9 mm, tips black (villous). |
(± 13) ± 21, 5–7 mm, tips green. |
of (1–)3–6 linear to filiform bractlets (lengths to 1/3 phyllaries). |
of 2–5+ bractlets (largest to 3 mm). |
(1–)4–12 in corymbiform arrays. |
(2–)5–12(–20) in corymbiform arrays. |
glabrous. |
hairy (especially on angles). |
= 40. |
= 40. |
|
|
|
|
| Flowering summer. |
Flowering late spring–summer. |
| Moist to drying hillsides, meadows, other open places in forest associations |
Openings in pine-oak woodlands |
| 2200–3700 m (7200–12100 ft) |
1600–2100 m (5200–6900 ft) |
|
CO; ID; MT; NM; NV; OR; SD; UT; WY
|
AZ
|
|
Senecio arizonicus is reputedly in southern New Mexico (W. C. Martin and C. R. Hutchins 1980); that seems unlikely and should be checked. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 20, p. 551. |
FNA vol. 20, p. 555. |
| 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. 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. 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. warnockii, S. wootonii |
| S. lapathifolius, S. semiamplexicaulis |
|
| A. Gray: Proc. Amer. Acad. Arts 19: 54. (1883) |
Greene: Bull. Torrey Bot. Club 10: 87. (1883) |
| |
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