Flora of North America species comparison

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Ericameria nauseosa var. bigelovii

Ericameria nauseosa var. texensis
Photo is of parent taxon

Bigelow's rabbitbrush
Photo is of parent taxon

Texas rabbitbrush
Habit Plants 15–120 cm. Plants 20–40(–50) cm.
Stems

whitish, nearly leafless at flowering, loosely tomentose.

whitish, leafy, loosely tomentose.
Leaves

mostly grayish white;

blades 1-nerved, filiform, 15–30 × 0.5–1 mm, faces tomentulose.

grayish green;

blades 1-nerved, linear, 10–35 × 1(–1.5) mm, faces loosely tomentulose.
Involucres

10.5–12.5 mm.

8–11.5 mm.
Corollas

9–11 mm, tubes glabrous or puberulent, lobes 0.8–1.5 mm, glabrous;

style appendages longer than stigmatic portions.

8.4–10.9 mm, tubes glabrous or sparsely puberulent, lobes 0.6–1.3 mm, glabrous;

style appendages shorter than stigmatic portions.
Phyllaries

14–18(–25), apices erect, acute to acuminate, abaxial faces tomentulose.

16–23 (outer margins ciliate), apices erect, acute to obtuse (outer) to acuminate (inner), outer abaxial faces tomentose, glabrescent.
Cypselae

glabrous;

pappi 7.2–11 mm.

glabrous;

pappi 5.2–7.4 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. bigelovii

Ericameria nauseosa var. texensis
Phenology Flowering late summer–fall. Flowering fall.
Habitat Dry slopes and mesas Limestone cliffs and among boulders, less common on gravel alluvium of streambeds, associated with bigtooth maple, hornbeam, madrone, and yellow pine woodlands
Elevation 1300–2200 m (4300–7200 ft) 1500–2100 m (4900–6900 ft)
Distribution
from FNA
AZ; CO; NM; UT
[BONAP county map]
from FNA
NM; TX
[BONAP county map]
Discussion

Of conservation concern.

Variety texensis is known from the Guadalupe Mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 64. FNA vol. 20, p. 69.
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. 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
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. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Linosyris bigelovii, Chrysothamnus nauseosus subsp. bigelovii Chrysothamnus nauseosus subsp. texensis
Name authority (A. Gray) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 88. (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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