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
Synonyms: Artemisia gracilenta A. NelsonArtemisia latiloba (Nuttall) RydbergArtemisia ludoviciana var. candicans (Rydberg) H. St. JohnArtemisia ludoviciana var. latiloba NuttallArtemisia vulgaris subsp. candicans (Rydberg) H. M. Hall & ClementsArtemisia vulgaris var. candicans (Rydberg) M. Peck
Revision as of 00:25, 27 July 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.