Senecio scorzonella

Greene

Pittonia 3: 90. 1896.

Endemic
Synonyms: Senecio covillei Greene Senecio covillei var. scorzonella (Greene) Jepson
Treatment appears in FNA Volume 20. Treatment on page 554. Mentioned on page 547, 555.

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). Heads (10–) 14–24 (–30+) in corymbiform arrays. Calyculi 0 or of 1–3+ lance-deltate to lance-linear bractlets (mostly less than 1 mm). Phyllaries ± 13, 3–5 mm, tips usually black. Ray-florets usually ± 5, sometimes 0; corolla laminae 5–8 (–10) mm. Cypselae glabrous.


Phenology: Flowering summer.
Habitat: Open wooded areas and subalpine meadows
Elevation: 1600–3500 m

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.

Selected References

None.

Lower Taxa

None.
... more about "Senecio scorzonella"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
Greene +
tapering +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
oblanceolate;lanceolate +
1.5cm;3cm +
winged;nerved;ribbed +
lance-deltate;lance-linear +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Nev. +
1600–3500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open wooded areas and subalpine meadows +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
glabrescent +, closely lanate +  and floccose-tomentose +
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 +
dentate +  and denticulate +
2-carpellate +
persistent +
Flowering summer. +
mostly oblong +  and lanceolate or linear +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Senecio covillei +  and Senecio covillei var. scorzonella +
Senecio scorzonella +
species +
campanulate +
denticulate +  and serrate or toothed +
40 cm400 mm <br />0.4 m <br /> (50 cm500 mm <br />0.5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +