Ericameria nauseosa var. juncea

(Greene) G. L. Nesom & G. I. Baird

Phytologia 75: 86. 1993.

Common names: Rush rabbitbrush
Endemic
Basionym: Bigelowia juncea Greene Bot. Gaz. 6: 184. 1881 (as Bigelovia)
Synonyms: Chrysothamnus nauseosus var. junceus (Greene) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 66. Mentioned on page 63.

Plants 40–70 cm. Stems yellowish green, usually leafless at flowering, compactly tomentose. Leaves yellowish green; blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces compactly tomentose. Involucres 9.5–12 mm. Phyllaries 22–25, apices erect, acute, abaxial faces tomentose or glabrate. Corollas 7–8.5 mm, tubes hairy, lobes 0.7–0.9 mm, villous; style appendages longer than stigmatic portions. Cypselae hairy; pappi 5.6–7.6 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Blackbrush, matchweed, shadscale, and pinyon-juniper communities
Elevation: 1200–1800 m

Discussion

Selected References

None.

Lower Taxa

None.
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(Greene) G. L. Nesom & G. I. Baird +
Bigelowia juncea +
Rush rabbitbrush +
Ariz. +, Nev. +  and Utah. +
1200–1800 m +
Blackbrush, matchweed, shadscale, and pinyon-juniper communities +
Flowering late summer–fall. +
Chrysothamnus nauseosus var. junceus +
Ericameria nauseosa var. juncea +
Ericameria nauseosa +
variety +