Flora of North America species comparison

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Senecio spribillei

Senecio blochmaniae

Blochman's ragwort, dune ragwort
Habit Perennials, 5–20 cm (caudices branched). Subshrubs, 45–130 cm (taproots forming woody crowns).
Herbage

glabrous.

glabrous or sparsely hairy.
Stems

usually single.

usually multiple (arching upwards).
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).

evenly distributed (often crowded; proximal often withering and pendulous);

sessile or ± petiolate;

blades linear-filiform, 3–12 cm × 1–3 mm, bases ± linear, margins entire.
Ray florets

“few”;

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

± 8;

corolla laminae 8–10 mm.
Phyllaries

± 13, 7–9 mm, tips green.

± 13, 7–10 mm, tips green.
Calyculi

of “few,” linear bractlets.

0 or of 1–3+ lance-deltate to linear bractlets (lengths to 1/4 phyllaries).
Heads

nodding, 4–6.

5–20 in corymbiform arrays (involucres campanulate).
Cypselae

glabrous.

hirtellous (canescent).
2n

= 40.

Senecio spribillei

Senecio blochmaniae
Phenology Flowering Aug. Flowering summer–early fall.
Habitat Alpine rock ledges Coastal sand dunes and sandy, open flood plains
Elevation 2500 m (8200 ft) 0–100 m (0–300 ft)
Distribution
from FNA
MT
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

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.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 551. FNA vol. 20, p. 560.
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. 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
S. actinella, S. amplectens, S. ampullaceus, S. aphanactis, S. arizonicus, S. aronicoides, S. astephanus, S. atratus, S. bigelovii, 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
Name authority W. A. Weber: Sida 20: 511, fig. 1. (2002) Greene: Erythaea 1: 7. (1893)
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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