Artemisia cana subsp. viscidula

(Osterhout) Beetle
Rhodora 61: 84. 1959.
Common names: Sticky sagebrush
Endemic
Basionym: Artemisia cana var. viscidula Osterhout Bull. Torrey Bot. Club 27: 507. 1900
Synonyms: Artemisia argillosa (Osterhout) Rydberg Artemisia viscidula
Treatment appears in FNA Volume 19. Treatment on page 513. Mentioned on page 512, 515.

Shrubs, 50–70(–90) cm. Stems white (sparsely tomentose) or brown (glabrous). Leaves bright to dull green, blades linear to narrowly lanceolate, (1.5–)2–3 × 0.2–0.4 cm, often with irregular lobes, sparsely hairy or glabrescent, viscid. Heads (2–3 per branch, erect, sessile) in (sparsely leafy) arrays 12–20 × 1–2 cm. Involucres narrowly campanulate, 3–4 × 2–3(–4) mm. Phyllaries narrowly lanceolate, acute (outer) or obtuse, sparsely hairy. Florets 4–8. Cypselae 1–2.3 mm. 2n = 18, 36, 72.


Phenology: Flowering mid–late summer.
Habitat: Wet mountain meadows, stream banks, rocky areas with late-lying snows
Elevation: 2000–3300 m

Distribution

V19-870-distribution-map.gif

Ariz., Colo., Idaho, Mont., Nev., N.Mex., Utah, Wyo.

Discussion

Subspecies viscidula is the common silver sagebrush of the intermountain region of western North America. In New Mexico, it is known only from Rio Arriba County. It is distinguished from subsp. bolanderi by geography as well as its darker green foliage and sparsely (rather than densely) tomentose or glabrous stems. Usually restricted to wet meadows and stream banks, it is distinctive in the late summer and fall by its yellowing ephemeral leaves.

Selected References

None.

Lower Taxa

None.

Leila M. Shultz +
(Osterhout) Beetle +
Artemisia cana var. viscidula +
Sticky sagebrush +
Ariz. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Utah +  and Wyo. +
2000–3300 m +
Wet mountain meadows, stream banks, rocky areas with late-lying snows +
Flowering mid–late summer. +
Artemisia argillosa +  and Artemisia viscidula +
Artemisia cana subsp. viscidula +
Artemisia cana +
subspecies +