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Red de Herbarios del Noroeste de México (northern Mexico)
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Senecio elmeri
Piper
Family:
Asteraceae
Elmer's Ragwort
FNA
Resources
Theodore M. Barkley+ in Flora of North America (vol. 20)
Perennials,
10-20(-30) cm (rhizomes trailing or branching).
Herbage
unevenly villous-tomentose or floccose, glabrescent.
Stems
single (from loosely clustered basal leaves).
Leaves
progressively reduced distally; ± petiolate; blades ovate to oblanceolate, (3-)4-8(-10) × 2-3(-4) cm, bases tapered, margins shallowly dentate (mid and distal leaves smaller, bractlike, often clasping).
Heads
erect or weakly nodding (especially in bud), (2-)5-9(-12) in loose, cymiform arrays.
Calyculi
of 2-7 lance-linear to linear bractlets (lengths
1
/ 3 -
2
/ 3 phyllaries).
Phyllaries
(± 8) ± 13, 8-10 mm, tips black (villous).
Ray florets
± 8; corolla laminae 8-15 mm.
Cypselae
glabrous.
2
n
= 40.
Flowering summer. Alpine and subalpine rocky sites and talus slopes; 2000-3000 m; B.C.; Wash.
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This project made possible by National Science Foundation Awards
1601697
,
1600981
,
1601393
,
1600976
,
1601429
,
1601101
,
1601503
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