Flora of North America species comparison

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Ericameria nauseosa var. juncea

Ericameria nauseosa var. leiosperma
Photo is of parent taxon

rush rabbitbrush
Photo is of parent taxon

common rabbitbrush, smooth-fruit rabbitbrush
Habit Plants 40–70 cm. Plants 25–60 cm.
Stems

yellowish green, usually leafless at flowering, compactly tomentose.

yellowish green, often leafless at flowering, densely, compactly tomentose.
Leaves

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces compactly tomentose.

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.8–1 mm, faces glabrate.
Involucres

9.5–12 mm.

8–11.5 mm.
Corollas

7–8.5 mm, tubes hairy, lobes 0.7–0.9 mm, villous;

style appendages longer than stigmatic portions.

5–8.5 mm, tubes mostly glabrous, lobes 0.5–1.1 mm (erect to incurved), glabrous;

style appendages longer than stigmatic portions.
Phyllaries

22–25, apices erect, acute, abaxial faces tomentose or glabrate.

17–31, apices erect, acute to obtuse, abaxial faces glabrous.
Cypselae

hairy;

pappi 5.6–7.6 mm.

glabrous;

pappi 3–6.6 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. juncea

Ericameria nauseosa var. leiosperma
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Blackbrush, matchweed, shadscale, and pinyon-juniper communities Gravelly and sandy soils, rocky crevices
Elevation 1200–1800 m (3900–5900 ft) 700–2800 m (2300–9200 ft)
Distribution
from FNA
AZ; NV; UT
[BONAP county map]
from FNA
AZ; CA; CO; NV; UT
[BONAP county map]
Source FNA vol. 20, p. 66. FNA vol. 20, p. 66.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa
Sibling taxa
E. nauseosa var. arenaria, E. nauseosa var. bernardina, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
E. nauseosa var. arenaria, E. nauseosa var. bernardina, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, E. nauseosa var. latisquamea, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Bigelowia juncea, Chrysothamnus nauseosus var. junceus Bigelowia leiosperma, Chrysothamnus nauseosus subsp. leiospermus
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993) (A. Gray) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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