Flora of North America species comparison

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Senecio scorzonella

Sierra groundsel, Sierra ragwort
Habit Perennials, 10–40(–50) cm (rhizomes stout).
Herbage

closely lanate to floccose-tomentose, unevenly glabrescent.
Stems

usually single, rarely clustered.
Leaves

reduced distally; obscurely petiolate;

blades oblanceolate to lanceolate, (4–)6–12+ × (1–)1.5–3 cm, bases tapering to winged petioles, margins dentate to denticulate (denticles dark, cartilaginous; mid and distal leaves smaller, bractlike).
Ray florets

usually ± 5, sometimes 0;

corolla laminae 5–8(–10) mm.
Phyllaries

± 13, 3–5 mm, tips usually black.
Calyculi

0 or of 1–3+ lance-deltate to lance-linear bractlets (mostly less than 1 mm).
Heads

(10–)14–24(–30+) in corymbiform arrays.
Cypselae

glabrous.

Senecio scorzonella
Phenology Flowering summer.
Habitat Open wooded areas and subalpine meadows
Elevation 1600–3500 m (5200–11500 ft)
Distribution
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
Discussion

Senecio scorzonella is restricted to high elevations in the Sierra Nevada–Cascade uplift and the White Mountains of California; it barely enters adjacent Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 554.
Parent taxa 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. 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. covillei, S. covillei var. scorzonella
Name authority Greene: Pittonia 3: 90. (1896)
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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