Ericameria parryi
Ericameria watsonii
green rabbitbrush, Nevada rabbitbrush, Parry's goldenbush, Parry's rabbitbrush
Watson's goldenbush
ascending to erect, greenish when young becoming tan and gray, sometimes fastigiately branched, densely white to grayish tomentose, eglandular.
erect to spreading (close to the ground), green when young, becoming pale reddish brown, highly branched, coarsely long-stipitate-glandular.
(sparse to crowded) erect to ascending or spreading;
blades linear to spatulate (plane or concave), 10–80 × 0.5–8(–14) mm, midnerves (sometimes + 2 laterals) evident, apices acute, faces glabrous or gray, greenish, or yellowish tomentose, sometimes viscid, sometimes gland-dotted or stipitate-glandular;
axillary leaf fascicles absent.
(crowded) ascending;
blades elliptic to oblanceolate, 10–25 × 3–8 mm, midnerves evident (1–2 fainter, collateral nerves often present), (margins undulate) apices acute, apiculate, faces long-stipitate-glandular;
fascicles usually absent, (sometimes of 1–3 reduced leaves).
1–10+ mm (bracts 0–3, transitional from distal leaves to phyllaries).
1–12 mm (bracts 3–20, crowded, leafy, grading into phyllaries).
subcylindric, 9–18 × 4–8 mm.
broadly obconic, 6–8 × 4–7 mm.
0.
4–8;
laminae elliptic, 6–9 × 1–2 mm.
5–20;
corollas 8–12.5 mm.
12–22;
corollas 5.5–6.5 mm.
10–20 in 3–6 series, tan, ovate to lanceolate or elliptic, 5–11+ × 0.7–2 mm, subequal, mostly chartaceous, sometimes herbaceous-tipped, midnerves mostly evident, (margins narrowly membranous, entire, mostly tomentulose, rarely eciliate) apices acuminate to attenuate, abaxial faces usually tomentose, sometimes resinous.
25–30 in 3–4 series, green to tan, ovate to oblong, 4–8 × 0.7–1.5 mm, unequal, outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves usually evident, (margins entire, outer often herbaceous, inner scarious) apices acute to acuminate or attenuate, abaxial faces mostly stipitate-glandular.
usually in congested, racemiform or cymiform clusters, sometimes grouped in paniculiform or thyrsiform arrays, sometimes borne singly.
usually in cymiform arrays.
tan, narrowly ellipsoid to subturbinate, 3–8 mm, sericeous;
pappi off-white to brown, 3.3–7.5 mm.
tan to brown, narrowly turbinate, 3–4.5 mm (usually 5-ribbed), moderately sericeous;
pappi tan, 4–5.5 mm.
= 18.
= 18.
Ericameria parryi
Ericameria watsonii
Varieties 12 (12 in the flora).
Ericameria parryi is widespread, often abundant, and variable (some authors recognize additional varieties). It is reported to hybridize with E. nauseosa. This treatment is based largely on the extensive research on Ericameria and related taxa by L. C. Anderson (1986).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Heads 1–2(–4) at branch tips; leaves sparsely to densely tomentulose (2800–3700 m, California, Nevada) | var. monocephala |
1. Heads (2–)4–20+ in cymiform, racemiform, sometimes branched and paniculiform or thyrsiform, arrays, sometimes in terminal glomerules, if heads 1–2, leaves glabrous, viscidulous (var. montana); leaves glabrous or hairy (often tomentulose to tomentose) | → 2 |
2. Leaves oblanceolate, 5–14 mm wide (Califor-nia) | var. latior |
2. Leaves linear, linear-spatulate, oblanceolate, or spatulate, 0.5–5 mm wide | → 3 |
3. Leaves abundantly stipitate-glandular (never glabrous or otherwise hairy; California, Nevada) | var. aspera |
3. Leaves glabrous or tomentulose to tomentose, usually eglandular, sometimes viscidulous or sparsely or minutely stipitate-glandular, or gland-dotted | → 4 |
4. Distalmost leaves overtopping arrays | → 5 |
4. Distalmost leaves usually shorter than or equaling (seldom overtopping) arrays | → 10 |
5. Leaves minutely stipitate-glandular | var. parryi |
5. Leaves not stipitate-glandular, sometimes gland-dotted (sessile), glabrous, moderately hairy, tomentose, or viscidulous | → 7 |
6. Leaf faces glabrous, viscidulous. | → 6 |
6. Leaf faces tomentulose, tomentose, or moderately hairy, sometimes gland-dotted | → 8 |
7. Plants 10–20 cm; leaves 20–35 mm; corolla lobes 1.4–1.7; Idaho/Montana border | var. montana |
7. Plants 30–60 cm; leaves 30–50(–80) mm; corolla lobes 1–1.5 mm; Salmon River drain-age, Idaho | E. var. salmonensis |
8. Leaf faces glabrous or puberulent, often minutely stipitate-glandular; florets 8–20 | var. parryi |
8. Leaf faces tomentulose to tomentose, sometimes gland-dotted; florets 5–7(–8) | → 9 |
9. Leaf faces tomentose, eglandular; corollas pale yellow; n Arizona, Colorado, Nebraska, New Mexico, s Utah, Wyoming | var. howardii |
9. Leaf faces densely tomentulose, gland-dotted; corollas clear yellow; Arizona, California, Nevada, Oregon, Utah | var. nevadensis |
10. Leaves 10–15 mm; outer phyllary apices sometimes reddish; florets 10–18 (California, s San Bernardino County) | var. imula |
10. Leaves (15–)20–50(–80) mm; outer phyllary apices tan or greenish, not reddish; florets 4–10 | → 11 |
11. Leaves gland-dotted | → 12 |
11. Leaves not gland-dotted | → 13 |
12. Plants 20–60 cm; leaf faces densely tomentulose, gland-dotted; corolla lobes 1–1.5 mm; California (c, n Sierra Nevada, Great Basin), Nevada, Oregon, Utah | var. nevadensis |
12. Plants 10–20 cm; leaf faces glabrous, minutely gland-dotted; corolla lobes 1.5–1.9 mm; California (s Sierra Nevada) | var. vulcanica |
13. Leaf faces tomentulose; corolla lobes 0.7–1 mm | var. affinis |
13. Leaves glabrous or sparsely hairy, sometimes ± viscid; corolla lobes 1–2 mm | → 14 |
14. Corollas clear yellow, tubes glabrous, lobes 1.5–2 mm; Colorado, New Mexico, Utah | var. attenuata |
14. Corollas pale yellow, tubes distally puberulent, lobes 1–1.5 mm; SalmonRiver drainage, Idaho | var. salmonensis |
CA
OR
Flora NW
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
