Artemisia ludoviciana subsp. candicans

(Rydberg) D. D. Keck
Proc. Calif. Acad. Sci., ser. 4, 25: 447. 1946.
Endemic
Basionym: Artemisia candicans Rydberg Bull. Torrey Bot. Club 24: 296. 1897
Synonyms: Artemisia gracilenta A. Nelson Artemisia latiloba (Nuttall) Rydberg Artemisia ludoviciana var. candicans (Rydberg) H. St. John Artemisia ludoviciana var. latiloba Nuttall Artemisia vulgaris subsp. candicans (Rydberg) H. M. Hall & Clements Artemisia vulgaris var. candicans (Rydberg) M. Peck
Treatment appears in FNA Volume 19. Treatment on page 529. Mentioned on page 527.

Stems 30–50(–80) cm, mostly simple, sparsely tomentose. Leaves ± white; blades broadly obovate to oblong, 4–10 × 1.5–4 cm, relatively deeply lobed (lobes, lanceolate, 1/3+ blade lengths, acute), faces tomentose (usually less densely adaxially). Heads in racemiform arrays 4–7 × 2–4 cm. Involucres (broadly campanulate), 4–5 × 4–8 mm. Florets: pistillate 8–10; bisexual 20–30; corollas 1.5–2 mm.


Phenology: Flowering mid–late summer.
Habitat: Mountains, usually in loamy soils
Elevation: 1800–3000 m

Distribution

V19-911-distribution-map.gif

Alta., B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Subspecies candicans is broadly circumscribed in this treatment. Variants within the complex, especially var. latiloba, may merit segregation.

Selected References

None.

Lower Taxa

None.

Leila M. Shultz +
(Rydberg) D. D. Keck +
Artemisia candicans +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1800–3000 m +
Mountains, usually in loamy soils +
Flowering mid–late summer. +
Proc. Calif. Acad. Sci., ser. +
Artemisia gracilenta +, Artemisia latiloba +, Artemisia ludoviciana var. candicans +, Artemisia ludoviciana var. latiloba +, Artemisia vulgaris subsp. candicans +  and Artemisia vulgaris var. candicans +
Artemisia ludoviciana subsp. candicans +
Artemisia ludoviciana +
subspecies +