Flora of North America species comparison

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Ericameria nauseosa var. mohavensis

Ericameria nauseosa var. arenaria
Photo is of parent taxon

Mojave rabbitbrush
Photo is of parent taxon

sand rabbitbrush
Habit Plants 60–80 cm. Plants 70–120 cm.
Stems

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

grayish green, moderately leafy, moderately compactly tomentose.
Leaves

yellowish green;

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

grayish green;

blades 1-nerved, linear, 40–75 × 0.8–1.1 mm, faces tomentose.
Involucres

8.5–12.

16–19 mm.
Corollas

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

style appendages longer than stigmatic portions.

12–14.2 mm, tubes glabrous, lobes 1.2–2 mm, glabrous;

style appendages longer than stigmatic portions.
Phyllaries

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

(19–)22–27 (in strongly vertical ranks), apices ± recurved, cuspidate-aristate, abaxial faces glabrous or glabrescent.
Cypselae

densely hairy;

pappi 6.3–9.8 mm.

hairy;

pappi 9.6–12.7 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. mohavensis

Ericameria nauseosa var. arenaria
Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Dry scrub Artemisia, pinyon, Atriplex, Joshua tree communities Sandhills and sandstone cliffs
Elevation 400–2400 m (1300–7900 ft) 1500–2000 m (4900–6600 ft)
Distribution
from FNA
CA; NV
[BONAP county map]
from FNA
AZ; NM; UT
[BONAP county map]
Discussion

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. 66. FNA vol. 20, p. 64.
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. 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. 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. 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 mohavensis, Chrysothamnus nauseosus var. mohavensis Chrysothamnus nauseosus subsp. arenarius, Chrysothamnus nauseosus var. arenarius
Name authority (Greene) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (1993) (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (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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