Flora of North America species comparison

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Ericameria nauseosa var. nitida

Ericameria nauseosa var. iridis
Photo is of parent taxon

shiny-bract rabbitbrush
Photo is of parent taxon

Rainbow Hills rabbitbrush
Habit Plants 60–150 cm. Plants 10–20 cm.
Stems

yellowish green, leafy at flowering, densely tomentose.

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

yellowish green;

blades 1-nerved, linear, 30–50 × 1–1.5 mm, faces glabrate.

grayish green;

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

10–12.5 mm.

12–16 mm.
Corollas

9.5–11 mm, tubes mostly glabrous, lobes 0.7–1 mm, glabrous or villous;

style appendages longer than stigmatic portions.

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

style appendages longer than stigmatic portions.
Phyllaries

13–19 (outer weakly keeled), apices erect, acute (outer) or acute to obtuse (inner), outer abaxial faces scurfy-tomentulose, inner glabrous.

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

usually glabrous, sometimes hairy;

pappi 9–10 mm.

glabrous;

pappi 5.2–5.8 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. nitida

Ericameria nauseosa var. iridis
Phenology Flowering late summer–fall. Flowering late summer.
Habitat Sandy gravels of dry streambeds Steep slopes on ± barren, gypsiferous, Arapien shale
Elevation 1200–1800 m (3900–5900 ft) ca. 2000 m (ca. 6600 ft)
Distribution
from FNA
AZ; NM; 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. 67. 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. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, 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 Chrysothamnus nauseosus subsp. nitidus, Chrysothamnus nauseosus var. nitidus Chrysothamnus nauseosus subsp. iridis, Chrysothamnus nauseosus var. iridis
Name authority (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (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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