Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Ericameria nauseosa var. nana

Ericameria nauseosa var. psilocarpa
Photo is of parent taxon

dwarf rabbitbrush, little rabbitbrush
Photo is of parent taxon

smooth-fruit rabbitbrush
Habit Plants 10–30 cm. Plants 30–50 cm.
Stems

whitish, leafy, loosely tomentose.

yellowish green, leafy, compactly tomentose.
Leaves

dark green to grayish;

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

yellowish green;

blades 1-nerved, narrowly oblanceolate, 30–70 × 1–2 mm, faces glabrate.
Involucres

8–13 mm.

8.5–12.2 mm.
Corollas

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

style appendages shorter than stigmatic portions.

8.6–9.6 mm, tubes sparsely hairy, lobes 1.3–1.5 mm, glabrous;

style appendages slightly longer than stigmatic portions.
Phyllaries

14–18, apices erect, acute to obtuse, outer abaxial faces sparsely tomentose, inner glabrous.

15–18, apices erect, acute or acuminate to cuspidate, abaxial faces glabrous.
Cypselae

densely hairy;

pappi 5.2–9 mm.

glabrous;

pappi 6.8–9.1 mm.
2n

= 18.

= 18.

Ericameria nauseosa var. nana

Ericameria nauseosa var. psilocarpa
Phenology Flowering late summer–fall. Flowering later summer–fall.
Habitat Dry, rocky ridges and cliffs Sagebrush and Elymus salinus communities
Elevation 1200–2000 m (3900–6600 ft) 1900–2300 m (6200–7500 ft)
Distribution
from FNA
ID; OR; WA
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Of conservation concern.

Variety psilocarpa is apparently restricted to Carbon, Duchesne, Emery, and Wasatch counties in east-central Utah.

L. C. Anderson (1986b) excluded the name Ericameria nauseosa var. glareosa (M. E. Jones) G. L. Nesom & G. I. Baird [as Chrysothamnus nauseosus subsp. glareosus (M. E. Jones) H. M. Hall & Clements], because he had seen no herbarium or field material. Jones’s original description is sketchy; he mentioned its similarity to subsp. leiosperma. S. L. Welsh et al. (1987) noted the uncertain disposition of this taxon. A. Cronquist (1994) recognized C. nauseosus var. glareosus (M. E. Jones) H. M. Hall and placed C. nauseosus var. psilocarpus in synonymy, noting that it was equal to E. nauseosa var. glareosa (M. E. Jones) G. L. Nesom & G. I. Baird. Without more substantial documentation, use of var. psilocarpa is preferred over var. glareosa, which we take to be of uncertain application.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 67. FNA vol. 20, p. 68.
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. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Chrysothamnus nauseosus var. nanus, Chrysothamnus nauseosus subsp. nanus Chrysothamnus nauseosus var. psilocarpus, Chrysothamnus nauseosus subsp. psilocarpus
Name authority (Cronquist) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (1993) (S. F. Blake) 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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers