familyAsteraceae
genusArtemisia
subgenusArtemisia subg. Artemisia
speciesArtemisia ludoviciana
subspeciesArtemisia ludoviciana subsp. candicans
Artemisia ludoviciana subsp. candicans
Proc. Calif. Acad. Sci., ser. 4, 25: 447. 1946.
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
Revision as of 20:21, 16 December 2019 by FNA>Volume Importer
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
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.