Flora of North America species comparison

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Ericameria nauseosa var. nana

Ericameria nauseosa var. texensis
Photo is of parent taxon

dwarf rabbitbrush, little rabbitbrush
Photo is of parent taxon

Texas rabbitbrush
Habit Plants 10–30 cm. Plants 20–40(–50) cm.
Stems

whitish, leafy, loosely tomentose.

whitish, leafy, loosely tomentose.
Leaves

dark green to grayish;

blades 1-nerved, filiform to linear, 30–40 × 1–3 mm, faces compactly tomentose.

grayish green;

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

8–13 mm.

8–11.5 mm.
Corollas

7.5–10 mm, tubes glabrous or moderately hairy, lobes 1.6–2.5 mm, glabrous;

style appendages shorter 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, apices erect, acute to obtuse, outer abaxial faces sparsely tomentose, inner glabrous.

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

densely hairy;

pappi 5.2–9 mm.

glabrous;

pappi 5.2–7.4 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. nana

Ericameria nauseosa var. texensis
Phenology Flowering late summer–fall. Flowering fall.
Habitat Dry, rocky ridges and cliffs Limestone cliffs and among boulders, less common on gravel alluvium of streambeds, associated with bigtooth maple, hornbeam, madrone, and yellow pine woodlands
Elevation 1200–2000 m (3900–6600 ft) 1500–2100 m (4900–6900 ft)
Distribution
from FNA
ID; OR; WA
[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. 67. 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. 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. 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 Chrysothamnus nauseosus var. nanus, Chrysothamnus nauseosus subsp. nanus Chrysothamnus nauseosus subsp. texensis
Name authority (Cronquist) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (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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