FNA: Senecio astephanus vs. Senecio pudicus

	Senecio astephanus	Senecio pudicus
	San Gabriel ragwort	bashful ragwort
Habit	Perennials, 40–100 cm (caudices unknown).	Perennials or biennials (possibly winter annuals), 50–80 cm (caudices fibrous-rooted).
Herbage	unevenly floccose-lanate or tomentose, glabrescent.	glabrous.
Stems	single.	usually single, sometimes loosely clustered.
Leaves	progressively reduced distally; petiolate; blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike).	progressively reduced distally; petiolate; blades narrowly lanceolate to oblanceolate, 8–15(–20+) × (0.5–)1–3(–4) cm, bases tapered, margins entire or dentate (mid and distal leaves sessile, bractlike).
Ray florets	0.	0.
Phyllaries	± 21, 7–8 mm, tips greenish.	usually ± 13, rarely ± 8, 5–9 mm, tips green.
Calyculi	of 5–8+ lance-linear to filiform bractlets (lengths 1/3–7/8 phyllaries).	of 2–6 lance-linear bractlets.
Heads	10–20+ in loose or congested, cymiform arrays.	nodding, (3–)8–16(–40+) in racemiform or paniculiform arrays.
Cypselae	glabrous.	glabrous.
2n	= 40.

	Senecio astephanus	Senecio pudicus
Phenology	Flowering spring.	Flowering summer–early autumn.
Habitat	Steep, rocky slopes	Rocky, damp or drying hillsides, often coniferous and aspen woodlands
Elevation	400–1500 m (1300–4900 ft)	2400–3800 m (7900–12500 ft)
Distribution	CA [BONAP county map]	CO; NM; UT [BONAP county map]
Discussion	Of conservation concern. Senecio astephanus is collected infrequently. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 20, p. 553.	FNA vol. 20, p. 550.
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. 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. 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. 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
Synonyms		S. cernuus, Ligularia pudica
Name authority	Greene: Pittonia 1: 174. (1888)	Greene: Pittonia 4: 118. (1900)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Senecio astephanus

Senecio pudicus

San Gabriel ragwort

bashful ragwort

Habit

Perennials, 40–100 cm (caudices unknown).

Perennials or biennials (possibly winter annuals), 50–80 cm (caudices fibrous-rooted).

Herbage

unevenly floccose-lanate or tomentose, glabrescent.

glabrous.

Stems

single.

usually single, sometimes loosely clustered.

Leaves

progressively reduced distally;

petiolate;

blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike).

progressively reduced distally;

petiolate;

blades narrowly lanceolate to oblanceolate, 8–15(–20+) × (0.5–)1–3(–4) cm, bases tapered, margins entire or dentate (mid and distal leaves sessile, bractlike).

Ray florets

Phyllaries

± 21, 7–8 mm, tips greenish.

usually ± 13, rarely ± 8, 5–9 mm, tips green.

Calyculi

of 5–8+ lance-linear to filiform bractlets (lengths 1/3–7/8 phyllaries).

of 2–6 lance-linear bractlets.

Heads

10–20+ in loose or congested, cymiform arrays.

nodding, (3–)8–16(–40+) in racemiform or paniculiform arrays.

Cypselae

glabrous.

= 40.

Senecio astephanus

Senecio pudicus

Phenology

Flowering spring.

Flowering summer–early autumn.

Habitat

Steep, rocky slopes

Rocky, damp or drying hillsides, often coniferous and aspen woodlands

Elevation

400–1500 m (1300–4900 ft)

2400–3800 m (7900–12500 ft)

Distribution

[BONAP county map]

CO; NM; UT

[BONAP county map]

Discussion

Of conservation concern.

Senecio astephanus is collected infrequently.

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

Source

FNA vol. 20, p. 553.

FNA vol. 20, p. 550.

Parent taxa

Asteraceae > tribe Senecioneae > Senecio

Sibling taxa

S. actinella, S. amplectens, S. ampullaceus, S. aphanactis, S. arizonicus, S. aronicoides, 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. 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. 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

Synonyms

S. cernuus, Ligularia pudica

Name authority

Greene: Pittonia 1: 174. (1888)

Greene: Pittonia 4: 118. (1900)

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).

Choose a data source: Flora of North America

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Flora of North America species comparison

Senecio astephanus

Senecio pudicus

Senecio astephanus

Senecio pudicus