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Photo is of parent taxon

common rabbitbrush, white rabbitbrush

Photo is of parent taxon

Rainbow Hills rabbitbrush

Habit Plants 40–120 cm (pleasantly fragrant). Plants 10–20 cm.
Stems

whitish, leafy, densely to loosely tomentose.

grayish green (at least when young), leafy, faces ± compactly tomentose.

Leaves

whitish;

blades 1-nerved, filiform to linear, 10–35 × 1–2 mm, faces tomentose.

grayish green;

blades 1-nerved, linear, 15–40 × 0.8–1 mm, compactly tomentose.

Involucres

7–9 mm.

12–16 mm.

Corollas

7–9.5 mm, tubes puberulent to cobwebby, lobes 0.5–1 mm, glabrous;

style appendages shorter than stigmatic portions.

7.8–8.7 mm, tubes glabrous, lobes 1.5–2 mm, glabrous;

style appendages longer than stigmatic portions.

Cypselae

densely hairy;

pappi 5.2–7.2 mm.

glabrous;

pappi 5.2–5.8 mm.

Phyllarie(s)

14–16, apices erect, obtuse, abaxial faces tomentose.

20–26, apices erect, acute to acuminate, abaxial faces glabrous.

2n

= 18.

= 18.

Ericameria nauseosa var. hololeuca

Ericameria nauseosa var. iridis

Phenology Flowering late summer–fall. Flowering late summer.
Habitat Well-drained, gravelly or sandy slopes Steep slopes on ± barren, gypsiferous, Arapien shale
Elevation 100–2500 m (300–8200 ft) ca. 2000 m (ca. 6600 ft)
Distribution
from FNA
AZ; CA; ID; NM; NV; OR; UT
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Of conservation concern.

Variety iridis is known only from Sevier County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 65. FNA vol. 20, p. 65.
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. iridis, E. nauseosa var. juncea, 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. juncea, 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
Synonyms Bigelowia graveolens var. hololeuca, Chrysothamnus nauseosus var. hololeucus Chrysothamnus nauseosus subsp. iridis, Chrysothamnus nauseosus var. iridis
Name authority (A. Gray) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993) (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993)
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