Senecio integerrimus var. integerrimus

Endemic
Treatment appears in FNA Volume 20. Treatment on page 556. Mentioned on page 557.

Herbage glabrous or glabrescent at flowering (except in leaf-axils and among heads). Leaves: basal and proximal cauline distinctly petiolate; blades (cauline) elliptic, lanceolate, or oblanceolate. Heads (3–) 8–20+. Phyllaries linear-subulate, 6–7 (–8) mm, tips usually green, minutely, if at all, black. Ray-florets 5–8+; corollas yellow, laminae 6–8+ mm.


Phenology: Flowering spring.
Habitat: Open prairies and plains
Elevation: 200–1500 m

Distribution

V20-1231-distribution-map.gif

Alta., Man., Sask., Colo., Iowa, Kans., Minn., Mont., Nebr., N.Mex., N.Dak., S.Dak., Wyo.

Discussion

Variety integerrimus intergrades with var. exaltatus in the Rocky Mountains.

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 +
less tapered or truncate +  and cordate +
6 cm60 mm <br />0.06 m <br /> (25 cm250 mm <br />0.25 m <br />) +
oblanceolate;lanceolate;oblanceolate;lanceolate;elliptic +
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. +, Man. +, Sask. +, Colo. +, Iowa +, Kans. +, Minn. +, Mont. +, Nebr. +, N.Mex. +, N.Dak. +, S.Dak. +  and Wyo. +
200–1500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open prairies and plains +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
glabrescent +  and glabrous +
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 /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +, proximal +  and basal +
reduced +
erect;recurved +
deltate +
dentate +  and entire +
2-carpellate +
persistent +
Flowering spring. +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
linear-subulate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Gen. N. Amer. Pl. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Senecio integerrimus var. integerrimus +
Senecio integerrimus +
variety +
campanulate +
black +  and green +
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 +