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Arnica nevadensis
Arnica nevadensis
A. Gray
Family:
Asteraceae
Images
not available
Flora of North America
Resources
Steven J. Wolf in Flora of North America (vol. 21)
Plants
10-50 cm.
Stems
simple.
Leaves
2-3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes); petiolate (petioles narrowly to broadly winged); blades elliptic to ovate, 3-8 × 2-4 cm, margins entire or denticulate, apices acute to rounded, faces stipitate-glandular.
Heads
1(-3).
Involucres
campanulate-turbinate.
Phyllaries
10-16, oblanceolate.
Ray florets
6-14; corollas yellow.
Disc florets:
corollas yellow; anthers yellow.
Cypselae
dark gray, 6-9 mm, stipitate-glandular;
pappi
white or tawny, bristles barbellate to subplumose.
2n
= 76. Flowering Jul-Aug. Coniferous forests, meadows, rocky slopes; 1500-3000 m; Calif., Nev., Oreg., Wash.
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