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

• Generated Map
• Legacy Map

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.