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.
54 +, 36 +  and 18 +
not tailed +  and obtuse +
scarious +
congested +  and open +
indeterminate +  and determinate +
Leila M. Shultz +
(Rydberg) D. D. Keck +
decurrent +
Artemisia candicans +
compound +  and simple +
elliptic +  and linear to broadly +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
lobed;broadly obovate;oblong +
1.5cm;4cm +
fertile +  and bisexual +
zygomorphic +, actinomorphic +  and (3-)5-merous +
red-tinged +  and yellow +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
winged +  and monomorphic +
ellipsoid +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1800–3000 m +
gland-dotted +
peripheral +
winged +  and beaked +
dispersed +
Mountains, usually in loamy soils +
spiciform +  and racemiform +
in subcapitate clusters +  and singly +
indeterminate +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
heterogamous +  and homogamous +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate;campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
persistent +  and deciduous +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
Flowering mid–late summer. +
2 +  and 20 +
Proc. Calif. Acad. Sci., ser. +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
gray-green +
relatively few +  and relatively numerous +
wand-like +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
appendaged +  and truncate +
papillate +
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 +
funnel +  and subglobose +
cylindric +
fibrous-rooted +  and taprooted +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +