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Naturalized flora of The Morton Arboretum
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Ericameria nauseosa var. washoensis
(L.C.Anderson) G.L.Nesom & G.I.Baird
Family:
Asteraceae
FNA
Resources
Lowell E. Urbatsch, Loran C. Anderson, Roland P. Roberts, Kurt M. Neubig in Flora of North America (vol. 20)
Plants
30-45(-100) cm.
Stems
whitish, sparsely leafy, loosely tomentose.
Leaves
grayish green; blades 1-3-nerved, spatulate to narrowly oblanceolate, 20-30 × 2-3 mm, faces loosely hairy.
Involucres
10-12 mm.
Phyllaries
16-20(-30), (brownish costal nerves often evident) apices acute to obtuse, outer abaxial faces sparsely villous to tomentose, inner tomentulose.
Corollas
7.5-9(-10) mm, tubes puberulent, lobes 1.3-1.6 mm, villous; style appendages longer than stigmatic portions.
Cypselae
distally pilose;
pappi
6.5-10 mm.
2n
= 18.
Flowering late summer-fall. Rocky, open sites in juniper and pinyon grasslands; 1500-1700 m; of conservation concern; Calif., Nev.
Variety
washoensis
is known from northeastern California and northwestern Nevada.
Open Interactive Map
Lydia Tressel
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22 Total Images