Flora of North America species comparison

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Ericameria nauseosa var. ceruminosa

Ericameria nauseosa var. mohavensis
Photo is of parent taxon

desert rabbitbrush, sharp bract rabbitbrush
Photo is of parent taxon

Mojave rabbitbrush
Habit Plants 50–70 cm. Plants 60–80 cm.
Stems

yellowish green, moderately leafy to nearly leafless, compact tomentose.

white to yellowish green, nearly leafless at flowering, densely tomentose.
Leaves

yellowish green;

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

yellowish green;

blades 1-nerved, filiform, 10–30 × 0.5–1.5 mm, faces glabrate.
Involucres

7–8.5 mm.

8.5–12.
Corollas

6–7.5 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous;

style appendages shorter than stigmatic portions.

7–10.9 mm, tubes puberulent, lobes 0.9–2 mm, glabrous;

style appendages longer than stigmatic portions.
Phyllaries

16–26 (in vertical ranks), apices recurved, acuminate, abaxial faces tomentose to glabrate, glutinous.

20–26, apices erect, acute, abaxial faces tomentose to glabrate.
Cypselae

hairy;

pappi 4.5–6.7 mm.

densely hairy;

pappi 6.3–9.8 mm.
2n

= 18.

Ericameria nauseosa var. ceruminosa

Ericameria nauseosa var. mohavensis
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Gravelly arroyos Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities
Elevation 700–1700 m (2300–5600 ft) 400–2400 m (1300–7900 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Variety ceruminosa grows in the Mojave Desert.

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

Variety mohavensis may intergrade with vars. hololeuca and oreophila. It grows in southern Nevada and southern California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 65. 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. 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. 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. leiosperma, 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 Linosyris ceruminosus, Chrysothamnus nauseosus subsp. ceruminosus, Chrysothamnus nauseosus var. ceruminosus Bigelowia mohavensis, Chrysothamnus nauseosus var. mohavensis
Name authority (Durand & Hilgard) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (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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