Flora of North America species comparison

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Ericameria nauseosa var. arenaria

Ericameria nauseosa var. texensis
Photo is of parent taxon

sand rabbitbrush
Photo is of parent taxon

Texas rabbitbrush
Habit Plants 70–120 cm. Plants 20–40(–50) cm.
Stems

grayish green, moderately leafy, moderately compactly tomentose.

whitish, leafy, loosely tomentose.
Leaves

grayish green;

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

grayish green;

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

16–19 mm.

8–11.5 mm.
Corollas

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

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

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

hairy;

pappi 9.6–12.7 mm.

glabrous;

pappi 5.2–7.4 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. arenaria

Ericameria nauseosa var. texensis
Phenology Flowering late summer–fall. Flowering fall.
Habitat Sandhills and sandstone cliffs Limestone cliffs and among boulders, less common on gravel alluvium of streambeds, associated with bigtooth maple, hornbeam, madrone, and yellow pine woodlands
Elevation 1500–2000 m (4900–6600 ft) 1500–2100 m (4900–6900 ft)
Distribution
from FNA
AZ; 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. 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
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 subsp. arenarius, Chrysothamnus nauseosus var. arenarius Chrysothamnus nauseosus subsp. texensis
Name authority (L. C. Anderson) 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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