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Arizona - New Mexico Chapter
Consortium of Midwest Herbaria
Intermountain Region Herbaria Network (IRHN)
Mid-Atlantic Herbaria
North American Network of Small Herbaria
Northern Great Plains Herbaria
Madrean Archipelago Biodiversity Assessment (MABA) - Flora
Red de Herbarios del Noroeste de México (northern Mexico)
SERNEC - Southeastern USA
Arnica viscosa
A. Gray
Family:
Asteraceae
Mt. Shasta Leopardbane
FNA
Resources
Steven J. Wolf in Flora of North America (vol. 21)
Plants
20-50 cm.
Stems
branched (prominently ribbed, strongly stipitate-glandular; caudices woody).
Leaves
5-10 pairs (main stems, 2-6 pairs on branches; basal withered by flowering), cauline; sessile; blades obovate-oblong to ovate-oblong, (1-)2-4(-5) × 1-3 cm, margins ± entire, apices acute, faces sparsely to densely pilose, densely stipitate-glandular.
Heads
10-20.
Involucres
narrowly turbinate.
Phyllaries
10-20, broadly lanceolate (stipitate-glandular).
Ray florets
0.
Disc florets
10-30; corollas cream; anthers yellow.
Cypselae
dark gray, 4.5-6.5 mm, stipitate-glandular;
pappi
usually white, rarely tawny, bristles barbellate to subplumose.
2
n
= 38.
Flowering Aug-Sep. Open, rocky subalpine to alpine; 1700-2500 m; Calif., Oreg.
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18 Total Images
This project made possible by
National Science Foundation Award EF 1702516
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