Difference between revisions of "Artemisia cana subsp. cana"

Common names: Silver wormwood
Synonyms: Artemisia columbiensis Nuttall
Treatment appears in FNA Volume 19. Treatment on page 513. Mentioned on page 512.
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Revision as of 20:21, 16 December 2019

Shrubs, 100–150 cm. Stems white to light gray or brown. Leaves whitish gray, blades narrowly elliptic to lanceolate, 2–8 × 0.3–1 cm, usually entire, sometimes irregularly lobed, densely silvery-canescent. Heads in (leafy) arrays 10–20 × 5–7 cm. Involucres broadly campanulate, 3–4 × 3–5 mm. Phyllaries broadly ovate (mostly obtuse), densely hairy. Florets 10–20. Cypselae 1–1.2 mm. 2n = 54.


Phenology: Flowering mid–late summer.
Habitat: Sandy loam soils, often along streams
Elevation: 1000–1500 m

Distribution

V19-868-distribution-map.gif

Alta., B.C., Man., Sask., Colo., Mont., Nebr., N.Dak., S.Dak., Wyo.

Discussion

Subspecies cana is found primarily in the grasslands of Canada and the west-central United States. It is unusual within the species in that there is no morphologic evidence of hybridization with other species in subg. Tridentatae.

Selected References

None.

Lower Taxa

None.
Leila M. Shultz +
Tridentatae +
Silver wormwood +
Alta. +, B.C. +, Man. +, Sask. +, Colo. +, Mont. +, Nebr. +, N.Dak. +, S.Dak. +  and Wyo. +
1000–1500 m +
Sandy loam soils, often along streams +
Flowering mid–late summer. +
Fl. Amer. Sept. +
Illustrated +  and Endemic +
Artemisia columbiensis +
Artemisia cana subsp. cana +
Artemisia cana +
subspecies +