Senecio neowebsteri

S. F. Blake

Leafl. W. Bot. 8: 143. 1957.

EndemicConservation concern
Basionym: Senecio websteri Greenman Bot. Gaz. 53: 511. 1912,
Treatment appears in FNA Volume 20. Treatment on page 553. Mentioned on page 546, 551.

Perennials, 7–15 (–20+) cm (rhizomes fibrous-rooted). Herbage (sometimes purplish-tinged) floccose-tomentose, unevenly glabrescent. Stems single or loosely clustered (erect or arching). Leaves mostly cauline; petiolate (petioles about equaling blades); blades lanceolate or oblanceolate to ovate, (2–) 4–8+ × 1.5–3 cm, bases tapered, margins denticulate (distal leaves smaller, lanceolate or linear-lanceolate, bractlike). Heads nodding, 1 (–2). Calyculi of 4–8 lanceolate to lance-linear bractlets (lengths mostly less than 1/2 phyllaries). Phyllaries usually ± 21, sometimes ± 13, (8–) 10–15 mm, tips usually greenish (often sparsely hairy). Ray-florets ± 13; corolla laminae ± 15 mm. Cypselae glabrous. 2n = 40.


Phenology: Flowering late summer–early fall.
Habitat: High talus slopes
Elevation: 2200–2600 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Senecio neowebsteri"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
Theodore M. Barkley† +
S. F. Blake +
tapered +
Senecio websteri +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblanceolate;ovate +
1.5cm;3cm +
winged;nerved;ribbed +
lanceolate;lance-linear +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
15 cm150 mm <br />0.15 m <br /> (?) +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
2200–2600 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
High talus slopes +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
glabrescent +  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 +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
denticulate +
2-carpellate +
persistent +
Flowering late summer–early fall. +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
mostly oblong +  and lanceolate or linear +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Leafl. W. Bot. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
papillate +
Compositae +
Senecio neowebsteri +
species +
campanulate +
denticulate +  and serrate or toothed +
15 cm150 mm <br />0.15 m <br /> (20 cm200 mm <br />0.2 m <br />) +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
shrub +  and subshrub +