|
arrow-leaf groundsel, arrow-leaf ragwort, arrowleaf butterweed, groundsel
|
Sacramento ragwort
|
| Perennials, (20–)50–120(–200) cm (caudices branched, ± woody). |
Perennials, 20–50 cm (caudices fibrous-rooted). |
glabrous or sparsely floccose-tomentose when young. |
sparsely pubescent to tomentose (especially on abaxial leaf faces and among heads). |
single or loosely clustered. |
single or loosely clustered. |
evenly distributed; petiolate; blades narrowly triangular, (3–)4–10+ × 2–6 cm, bases usually ± truncate, sometimes tapered, margins usually dentate, rarely subentire (distal leaves subsessile, smaller). |
progressively reduced distally; petiolate; blades triangular, triangular-lanceolate, or lanceolate, 3–10(–15) × 1.5–4 cm, bases cordate to truncate or tapered, margins serrate or dentate (mid and distal leaves sessile, bractlike). |
± 8; corolla laminae 9–15 mm. |
0. |
(± 8) ± 13 (± 21), 6–10 mm, tips usually green, rarely black. |
± 8, 6–9 mm, tips green. |
of 2–6 bractlets (rarely more than 2 mm). |
of 2–5+ lance-deltate to filiform bractlets (lengths 1/5–1/2 phyllaries). |
10–30(–60) in corymbiform to subracemiform arrays. |
nodding, 6–10+ in racemiform-paniculiform arrays. |
glabrous. |
glabrous. |
= 40, 80. |
|
|
|
|
|
| Flowering summer. |
Late summer. |
| Damp places, open woodlands, especially rocky stream banks in coniferous forests |
Montane meadows |
| 100–3300 m (300–10800 ft) |
3000–3500 m (9800–11500 ft) |
|
AK; AZ; CA; CO; ID; MT; NM; NV; OR; WA; WY; AB; BC; NT; YT; PH
|
NM |
Plants of Senecio triangularis with narrow, subentire leaves that taper to the petioles are occasionally encountered in acid bogs in Oregon and Washington and less frequently elsewhere. They are regarded as edaphic variants; they have been recognized as var. angustifolius. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
| FNA vol. 20, p. 566. |
FNA vol. 20, p. 550. |
| 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. 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. 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. 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. gibbonsii, S. saliens, S. triangularis var. angustifolius |
|
| Hooker: Fl. Bor.-Amer. 1: 332, plate 115. (1834) |
Wooton & Standley: Contr. U.S. Natl. Herb. 16: 194. (1913) |
| |
BC
CA
OR
WA
Flora NW
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
