|
Flagstaff ragwort
|
California groundsel, chaparral ragwort, rayless ragwort
|
| Perennials, (7–)20–30(–40+) cm (rhizomes exfoliating). |
Annuals, 5–20+ cm (taproots relatively short and thin). |
densely lanate-tomentose, glabrescent (especially on adaxial faces of leaves). |
glabrous or sparsely tomentose (especially distally). |
single. |
usually 1 (relatively thin, delicate). |
mostly basal; petiolate; blades narrowly obovate, (2–)3–7(–10) × 1–2(–3+) cm, bases tapered, margins subentire to denticulate (cauline leaves bractlike). |
evenly distributed; sessile; blades oblanceolate to lance-linear, 2–4 × 0.5–1 cm, bases sometimes weakly clasping, margins usually subpinnate to dentate, sometimes subentire (distal leaves bractlike). |
± 13; corolla laminae usually 8–10 mm (sometimes tubular, unexpanded, heads then perhaps technically disciform). |
0 or 1–5; corolla laminae 0.5–1+ mm (barely surpassing phyllaries, heads perhaps technically disciform). |
± 21, 8–12 mm, tips greenish (with white bristles). |
± 8 or ± 13, 5–6 mm, tips greenish. |
of (1–)5–8+ linear to filiform bractlets (lengths 1/3–3/4 phyllaries). |
0 or of 1–3+ lance-deltate bractlets. |
1(–3). |
4–10+ in open, cymiform arrays. |
hairy. |
densely hairy. |
|
= 40. |
|
|
|
|
| Flowering summer. |
Flowering late winter–spring. |
| In duff, rocky woodlands, especially in pine-dominated areas |
Dry, open ground, especially alkaline flats |
| 2000–3000 m (6600–9800 ft) |
10–400 m (0–1300 ft) |
|
AZ; NM; Mexico (Chihuahua, Durango)
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CA; Mexico (Baja California)
|
Plants of Senecio actinella with relatively small proximal leaves similar to basal leaves and adaxial leaf faces early glabrate have been recognized as var. mogollonicus; the distinction is difficult to maintain. Receptacles in Senecio actinella are sometimes insect-infested. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 20, p. 553. |
FNA vol. 20, p. 563. |
| Asteraceae > tribe Senecioneae > Senecio |
Asteraceae > tribe Senecioneae > Senecio |
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. warnockii, S. wootonii |
S. actinella, S. amplectens, S. ampullaceus, 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. warnockii, S. wootonii |
| S. actinella var. mogollonicus, S. mogollonicus |
|
| Greene: Bull. Torrey Bot. Club 10: 87. (1883) |
Greene: Pittonia 1: 220. (1888) |
| |
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