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. psilocarpa

Ericameria nauseosa var. oreophila
Photo is of parent taxon

smooth-fruit rabbitbrush
Photo is of parent taxon

Great Basin rabbitbrush, rubber rabbitbrush
Habit Plants 30–50 cm. Plants 70–250 cm.
Stems

yellowish green, leafy, compactly tomentose.

greenish, usually leafy, compactly tomentose.
Leaves

yellowish green;

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

yellowish green;

blades 1-nerved, filiform to linear, 20–50 × 0.8–1 mm, faces glabrate.
Involucres

8.5–12.2 mm.

6.5–10 mm.
Corollas

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

style appendages slightly longer than stigmatic portions.

6–9 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous;

style appendages shorter than or equaling stigmatic portions.
Phyllaries

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

11–20, apices erect, acute, glabrous.
Cypselae

glabrous;

pappi 6.8–9.1 mm.

hairy (sometimes glabrous in Idaho populations);

pappi 4.2–7.6 mm.
2n

= 18.

= 18 (as Chrysothamnus nauseosus subsp. consimilis).

Ericameria nauseosa var. psilocarpa

Ericameria nauseosa var. oreophila
Phenology Flowering later summer–fall. Flowering late summer–fall.
Habitat Sagebrush and Elymus salinus communities Alkaline valleys and plains
Elevation 1900–2300 m (6200–7500 ft) 1200–3000 m (3900–9800 ft)
Distribution
from FNA
UT
[BONAP county map]
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WY; Mexico (Baja California)
[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.)

The names Chrysothamnus nauseosus subsp. consimilis and var. consimilis (Ericameria nauseosa subsp. consimilis) have been used for this taxon; an equivalent combination has not been made at the varietal level in Ericameria. Variety oreophila intergrades with vars. mohavensis and speciosa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 68. FNA vol. 20, p. 67.
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. 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
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. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Chrysothamnus nauseosus var. psilocarpus, Chrysothamnus nauseosus subsp. psilocarpus Chrysothamnus oreophilus, Chrysothamnus nauseosus var. artus, Chrysothamnus nauseosus subsp. consimilis, Chrysothamnus nauseosus var. consimilis, Chrysothamnus oreophilus var. artus, E. nauseosa var. arta, E. nauseosa subsp. consimilis
Name authority (S. F. Blake) G. L. Nesom & G. I. Baird: Phytologia 75: 87. (1993) (A. Nelson) G. L. Nesom & G. I. Baird: Phytologia 78: 64. (1995)
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

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