Senecio integerrimus var. exaltatus

(Nuttall) Cronquist

Leafl. W. Bot. 6: 48. 1950.

IllustratedEndemic
Basionym: Senecio exaltatus Nuttall Trans. Amer. Philos. Soc., n. s. 7: 410. 1841
Synonyms: Senecio dispar A. Nelson Senecio hookeri Torrey & A. Gray Senecio integerrimus var. vaseyi (Greenman) Cronquist Senecio lugens var. exaltatus (Nuttall) D. C. Eaton Senecio perplexus A. Nelson Senecio vaseyi Greenman
Treatment appears in FNA Volume 20. Treatment on page 557. Mentioned on page 556.

Herbage copiously to sparsely arachnose, tomentose, or villous at flowering. Leaves: basal and proximal cauline usually indistinctly petiolate; blades (cauline) mostly elliptic to lanceolate or oblanceolate, sometimes rounded-deltate or suborbiculate. Heads 6–15 (–30+). Phyllaries ± lanceolate, (4–) 5–10 mm, tips black. Ray-florets usually ± 5, sometimes 0; corollas yellow, laminae 6–15 mm.


Phenology: Flowering spring.
Habitat: Open woodlands, sagebrush plains, meadow grasslands from foothills to above timberline
Elevation: 500–3200 m

Distribution

V20-1235-distribution-map.gif

Alta., B.C., Sask., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Variety exaltatus is the most widespread and variable variety of the species. Eradiate plants of var. exaltatus have been recognized as var. vaseyi; there appears to be no populational integrity to the eradiate condition.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
(Nuttall) Cronquist +
less tapered or truncate +  and cordate +
Senecio exaltatus +
6 cm60 mm <br />0.06 m <br /> (25 cm250 mm <br />0.25 m <br />) +
suborbiculate;rounded-deltate;mostly elliptic;lanceolate or oblanceolate +
1cm;6cm +
winged;nerved;ribbed +
linear;filiform +
barbellulate +  and smooth +
white +  and stramineous +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
hirtellous +  and glabrous +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Sask. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
500–3200 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open woodlands, sagebrush plains, meadow grasslands from foothills to above timberline +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
villous +, tomentose +  and arachnose +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
turbinate;campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cauline +, proximal +  and basal +
reduced +
erect;recurved +
deltate +
dentate +  and entire +
2-carpellate +
persistent +
Flowering spring. +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Leafl. W. Bot. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
papillate +
Senecio dispar +, Senecio hookeri +, Senecio integerrimus var. vaseyi +, Senecio lugens var. exaltatus +, Senecio perplexus +  and Senecio vaseyi +
Senecio integerrimus var. exaltatus +
Senecio integerrimus +
variety +
campanulate +
denticulate +  and serrate or toothed +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
shrub +  and subshrub +