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Chrysothamnus viscidiflorus ssp. puberulus
(D.C. Eat.) Hall & Clements
Family:
Asteraceae
yellow rabbitbrush
[
Chrysothamnus viscidiflorus var. puberulus
(D.C. Eat.) Jepson,
more
Ericameria viscidiflora ssp. puberula
(D.C. Eat.) L.C. Anders.
]
Flora of North America
Resources
Lowell E. Urbatsch, Roland P. Roberts, Kurt M. Neubig in Flora of North America (vol. 20)
Plants
20-50 cm.
Stems
(grayish green) densely puberulent.
Leaf blades
pale grayish green, usually 1-nerved, sometimes 3-nerved proximally, narrowly linear, 10-40 × 1-2 mm, often twisted, canaliculate, margins flat or involute, puberulent, apices acute, faces densely puberulent.
Heads
in small, compact, cymiform arrays.
Involucres
turbinate, 5-7 mm.
Phyllaries
14-16 in 3-4 series, in weakly aligned vertical ranks, midveins obscure to evident distally, ± keeled, oblong, unequal, margins scarious, entire to ciliolate, subapical green patch sometimes present, apices obtuse or outer barely acute, faces puberulent.
Disc florets
mostly 5; corollas 5-6 mm, lobes 0.7-1.2 mm. Flowering summer-fall. Subalpine slopes; 1500-3000 m; Ariz., Calif., Idaho, Nev., Oreg., Utah.
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