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.
72 +, 36 +  and 18 +
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Leila M. Shultz +
(Osterhout) Beetle +
decurrent +
Artemisia cana var. viscidula +
compound +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glabrescent +  and hairy +
linear;narrowly lanceolate +
0.2cm;0.4cm +
Sticky sagebrush +
zygomorphic +, actinomorphic +  and (3-)5-merous +
red +  and pale-yellow +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
winged +  and monomorphic +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Utah +  and Wyo. +
2000–3300 m +
gland-dotted +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
fertile +  and bisexual +
winged +  and beaked +
dispersed +
Wet mountain meadows, stream banks, rocky areas with late-lying snows +
spiciform +  and racemiform +
in subcapitate clusters +  and singly +
indeterminate +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
heterogamous +  and homogamous +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
sessile +  and petiolate +
deciduous +
cauline +  and basal +
bright;dull +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
Flowering mid–late summer. +
2 +  and 20 +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
brown +  and white +
1 +  and 10 +
not wand-like +
appendaged +  and truncate +
papillate +
Artemisia argillosa +  and Artemisia viscidula +
Artemisia cana subsp. viscidula +
Artemisia cana +
subspecies +
funnel +  and subglobose +
cylindric +
perennial +, biennial +  and annual +