familyAsteraceae
genusArtemisia
subgenusArtemisia subg. Tridentatae
speciesArtemisia arbuscula
subspeciesArtemisia arbuscula subsp. arbuscula
Difference between revisions of "Artemisia arbuscula subsp. arbuscula"
Endemic
Treatment appears in FNA Volume 19. Treatment on page 511.
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Latest revision as of 19:57, 5 November 2020
Leaves broadly cuneate (lobed, lobes less than 1/2 blade lengths, 1–3 mm wide, rounded). Involucres 3.5–4(–5) × 2–4.5 mm. 2n = 18, 36.
Phenology: Flowering mid–late summer.
Habitat: Rocky sedimentary soils, high valleys, mountain slopes
Elevation: 1500–3800 m
Distribution
Calif., Colo., Idaho, Mont., Nev., Utah, Wash., Wyo.
Discussion
The relatively large heads of Artemisia arbuscula subsp. arbuscula suggest a relationship with A. cana; the extreme morphologic variability of this subspecies from east to west may be the result of hybridization with various subspecies within the A. cana complex.
Selected References
None.
Lower Taxa
None.