Senecio eremophilus var. macdougalii

(A. Heller) Cronquist in C. L. Hitchcock et al.

in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 5: 288. 1955.

Endemic
Basionym: Senecio macdougalii A. Heller Bull. Torrey Bot. Club 26: 592. 1899
Treatment appears in FNA Volume 20. Treatment on page 566. Mentioned on page 565.

Heads 20–60. Calyculi: bractlets inconspicuous. Involucres 4–5 (–6) mm diam. Phyllaries 3–5 mm, tips usually black, sometimes lightly so. Ray corolla laminae 5–6 mm.


Phenology: Flowering summer–early fall.
Habitat: Damp and drying habitats, conifer dominated associations, especially road cuts and other disturbed areas
Elevation: 2400–3600 m

Discussion

Selected References

None.

Lower Taxa

None.
44 +, 40 +  and 38 +
not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate +
scarious +
usually ovate +  and lance-linear +
corymbiform +  and compound +
indeterminate +  and determinate +
Theodore M. Barkley† +
(A. Heller) Cronquist in C. L. Hitchcock et al. +
tapered +
Senecio macdougalii +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;narrowly lanceolate +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
winged;nerved;ribbed +
inconspicuous +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
hirtellous +  and glabrous +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +  and N.Mex. +
2400–3600 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Damp and drying habitats, conifer dominated associations, especially road cuts and other disturbed areas +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
glabrate +  and glabrous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate;campanulate +
sessile +  and petiolate +
distributed +
cauline +  and basal +
erect;recurved +
deltate +
usually pinnate +  and lacerate +
2-carpellate +
persistent +
Flowering summer–early fall. +
mostly oblong +  and lanceolate or linear +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Senecio eremophilus var. macdougalii +
Senecio eremophilus +
variety +
campanulate +
denticulate +  and serrate or toothed +
80 cm800 mm <br />0.8 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +
40 cm400 mm <br />0.4 m <br /> (80 cm800 mm <br />0.8 m <br />) +
100 cm1,000 mm <br />1 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
shrub +  and subshrub +