Flora of North America species comparison

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Ericameria nauseosa var. latisquamea

Ericameria nauseosa var. iridis
Photo is of parent taxon

broadscale rabbitbrush
Photo is of parent taxon

Rainbow Hills rabbitbrush
Habit Plants 130–200 cm. Plants 10–20 cm.
Stems

white, leafy, loosely tomentose.

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

whitish;

blades 1-nerved, filiform, 15–45 × 1–2 mm, faces loosely tomentose.

grayish green;

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

7.5–10.5 mm.

12–16 mm.
Corollas

7–9.5 mm, tubes glabrous or puberulent, lobes 0.6–1 mm, glabrous;

style appendages equaling or shorter than stigmatic portions.

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

style appendages longer than stigmatic portions.
Phyllaries

15–17, apices erect, obtuse, outer abaxial faces densely tomentulose, inner glabrous.

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

densely hairy;

pappi 4.8–7.6 mm.

glabrous;

pappi 5.2–5.8 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. latisquamea

Ericameria nauseosa var. iridis
Phenology Flowering fall. Flowering late summer.
Habitat Dry streambeds and arroyos Steep slopes on ± barren, gypsiferous, Arapien shale
Elevation 1200–2200 m (3900–7200 ft) ca. 2000 m (ca. 6600 ft)
Distribution
from FNA
AZ; NM; Mexico (Sonora)
[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. 66. 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. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, 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. latisquamea, Chrysothamnus nauseosus subsp. latisquameus 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)
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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