Senecio lugens

Richardson in J. Franklin et al.

in J. Franklin et al., Narr. Journey Polar Sea, 748. 1823.

IllustratedEndemic
Synonyms: Senecio glaucescens Rydberg Senecio imbricatus Greene Senecio integerrimus var. lugens (Richardson) B. Boivin
Treatment appears in FNA Volume 20. Treatment on page 554. Mentioned on page 547.

Perennials, (10–) 20–35 (–50) cm (rhizomes suberect to creeping). Herbage loosely, often unevenly, floccose-tomentose, glabrescent. Stems single or clustered. Leaves reduced distally; petiolate; blades narrowly obovate to oblanceolate, (4–) 8–18 (–25) cm, bases tapered, margins subentire to dentate (denticles callous; mid and distal leaves bractlike, clasping). Heads (2–) 7–12 (–20+) in corymbiform arrays. Calyculi of 2–5 linear bractlets (1–2 mm). Phyllaries (± 8) ± 13 (± 21), 4–7 mm, tips black. Ray-florets (± 5) ± 8 (± 13); corolla laminae 8–10 (–15) mm. Cypselae glabrous. 2n = 40, 80.


Phenology: Flowering summer.
Habitat: Moist meadows, gravelly streambeds, open woods in alpine or boreal sites
Elevation: 200–2500 m

Distribution

V20-1225-distribution-map.gif

Alta., B.C., N.W.T., Yukon, Alaska, Mont., Wash., Wyo.

Discussion

Senecio lugens varies greatly in robustness across its range. It is scattered widely in the Rocky Mountain uplift and adjacent regions from northern Wyoming to Alaska; it is disjunct in the Olympic Peninsula, Washington. Superficially similar to S. integerrimus, S. lugens has well-developed, coarse, spreading rootstocks with branching roots; S. integerrimus arises from foreshortened, buttonlike caudices with abundant unbranched, fleshy-fibrous roots.

Selected References

None.

Lower Taxa

None.
... more about "Senecio lugens"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Theodore M. Barkley† +
Richardson in J. Franklin et al. +
tapered +
18 cm180 mm <br />0.18 m <br /> (25 cm250 mm <br />0.25 m <br />) +
narrowly obovate;oblanceolate +
8 cm80 mm <br />0.08 m <br /> (18 cm180 mm <br />0.18 m <br />) +
winged;nerved;ribbed +
barbellulate +  and smooth +
white +  and stramineous +
purplish +, reddish +, white +, ochroleucous +, yellow +  and white rarely reddish +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
angled +, 5-ribbed +, prismatic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, N.W.T. +, Yukon +, Alaska +, Mont. +, Wash. +  and Wyo. +
200–2500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist meadows, gravelly streambeds, open woods in alpine or boreal sites +
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 +
cauline +  and basal +
reduced +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
subentire +  and dentate +
2-carpellate +
persistent +
Flowering summer. +
mostly oblong +  and lanceolate or linear +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
in J. Franklin et al., Narr. Journey Polar Sea, +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
papillate +
Senecio glaucescens +, Senecio imbricatus +  and Senecio integerrimus var. lugens +
Senecio lugens +
species +
campanulate +
denticulate +  and serrate or toothed +
35 cm350 mm <br />0.35 m <br /> (50 cm500 mm <br />0.5 m <br />) +
20 cm200 mm <br />0.2 m <br /> (35 cm350 mm <br />0.35 m <br />) +
shrub +  and subshrub +