Flora of North America species comparison

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Senecio multidentatus

Senecio spribillei

Huachuca Mountain ragwort
Habit Perennials, 5–20 cm (caudices branched).
Herbage

glabrous.
Stems

usually single.
Leaves

progressively reduced distally (basal and proximal withering before flowering);

petiolate (petioles purplish, weakly winged, 4–5 cm);

blades broadly triangular-ovate to suborbiculate, 2–4(–5) × 2.5–3 cm, bases truncate to ± cuneate, margins coarsely spinulose-dentate (mid leaves similar, persistent).
Ray florets

“few”;

corolla laminae ca. 7 mm (inconspicuous, equaling or barely surpassing phyllaries).
Phyllaries

± 13, 7–9 mm, tips green.
Calyculi

of “few,” linear bractlets.
Heads

nodding, 4–6.
Cypselae

glabrous.

Senecio multidentatus

Senecio spribillei
Phenology Flowering Aug.
Habitat Alpine rock ledges
Elevation 2500 m (8200 ft)
Distribution
from FNA
AZ; Mexico
[BONAP county map]
from FNA
MT
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Senecio spribillei (from Snowshoe Peak, Cabinet Mountains) is similar in aspect to S. neowebsteri of the Olympic Mountains, Washington.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 567. FNA vol. 20, p. 551.
Parent taxa Asteraceae > tribe Senecioneae > Senecio Asteraceae > tribe Senecioneae > Senecio
Sibling taxa
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. 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. squalidus, S. sylvaticus, S. taraxacoides, S. triangularis, S. viscosus, S. vulgaris, S. warnockii, S. wootonii
Subordinate taxa
S. multidentatus var. huachucanus
Name authority Schultz-Bipontinus ex Hemsley: Biol. Cent.-Amer., Bot. 2(10): 243. (1881) W. A. Weber: Sida 20: 511, fig. 1. (2002)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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