Senecio crassulus

A. Gray

Proc. Amer. Acad. Arts 19: 54. 1883.

Endemic
Synonyms: Senecio lapathifolius Greene Senecio semiamplexicaulis Rydberg
Treatment appears in FNA Volume 20. Treatment on page 551. Mentioned on page 546, 547.

Perennials, (15–) 20–50 (–70) cm (rhizomes branched, ± woody). Herbage glabrous. Stems 1– (2–4). Leaves (thickish-turgid) progressively reduced distally; petiolate; blades broadly lanceolate to subelliptic, 2.5–15 × 1–5 cm, bases tapered, margins sharply dentate to subentire (some teeth callous; mid leaves sometimes larger than proximal; distal leaves sessile, smaller, often clasping). Heads (1–) 4–12 in corymbiform arrays. Calyculi of (1–) 3–6 linear to filiform bractlets (lengths to 1/3 phyllaries). Phyllaries (± 8) ± 13 or ± 21, 5–9 mm, tips black (villous). Ray-florets ± 8 or ± 13; corolla laminae 5–12 mm. Cypselae glabrous. 2n = 40.


Phenology: Flowering summer.
Habitat: Moist to drying hillsides, meadows, other open places in forest associations
Elevation: 2200–3700 m

Distribution

V20-1212-distribution-map.gif

Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Senecio crassulus"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
A. Gray +
tapered +
2.5 cm25 mm <br />0.025 m <br /> (15 cm150 mm <br />0.15 m <br />) +
broadly lanceolate;subelliptic +
1cm;5cm +
winged;nerved;ribbed +
linear;filiform +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +  and Wyo. +
2200–3700 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist to drying hillsides, meadows, other open places in forest associations +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
turbinate;campanulate +
cauline +  and basal +
reduced +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
sharply dentate +  and subentire +
2-carpellate +
persistent +
Flowering summer. +
mostly oblong +  and lanceolate or linear +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
2 (?) +  and 4 (?) +
appendaged +  and truncate +
papillate +
Senecio lapathifolius +  and Senecio semiamplexicaulis +
Senecio crassulus +
species +
campanulate +
denticulate +  and serrate or toothed +
50 cm500 mm <br />0.5 m <br /> (70 cm700 mm <br />0.7 m <br />) +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
shrub +  and subshrub +