Arnica griscomii subsp. frigida

(C. A. Meyer ex Iljin) S. J. Wolf

Taxon 38: 142.

Common names: Snow arnica
Basionyms: Arnica frigida C. A. Meyer ex Iljin Trudy Bot. Muz. 19: 112, plate 11, fig. 3. 1926
Synonyms: Arnica louiseana subsp. frigida (C. A. Meyer ex Iljin) Maguire Arnica louiseana var. frigida (C. A. Meyer ex Iljin) S. L. Welsh Arnica louiseana var. mendenhallii (Rydberg) Maguire Arnica louiseana var. pilosa Maguire
Treatment appears in FNA Volume 21. Treatment on page 371.

Involucre bases densely yellow-pilose. Phyllaries lanceolate. 2n = 38, 57, 76, 95.


Phenology: Flowering Jul–Aug.
Habitat: Alpine meadows, tundras, and calcareous rocky outcrops
Elevation: 0–1500 m

Distribution

V21-927-distribution-map.gif

B.C., N.W.T., Yukon, Alaska, Asia (e Russia)

Discussion

Selected References

None.

Lower Taxa

None.

95 +, 76 +, 57 +  and 38 +
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and cymiform +
indeterminate +  and determinate +
Steven J. Wolf +
(C. A. Meyer ex Iljin) S. J. Wolf +
decurrent +
Arnica frigida +
compound +  and simple +
1.2 cm12 mm <br />0.012 m <br /> (10 cm100 mm <br />0.1 m <br />) +
spatulate;ovate;spatulate;ovate;oblanceolate;lanceolate;elliptic +
0.5cm;3.5cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
connate +  and distinct +
Snow arnica +
stipitate-glandular +  and hairy +
glabrous +  and hirsute +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
B.C. +, N.W.T. +, Yukon +, Alaska +  and Asia (e Russia) +
0–1500 m +
stipitate-glandular +, hispidulous-puberulent +  and glabrous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Alpine meadows, tundras, and calcareous rocky outcrops +
discoid +  and radiate +
in cymiform or corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric;campanulate-turbinate +
1 (?) +  and 4 (?) +
deltate +
denticulate to dentate +  and denticulate +
2-carpellate +
subplumose +  and barbellate +
persistent +
10 +  and 50 +
aristate +
Flowering Jul–Aug. +
not stipitate-glandular +
9 +  and 20 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
distinct +
4 +  and 20 +
exalbuminous +
branched +  and simple +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Arnica louiseana subsp. frigida +, Arnica louiseana var. frigida +, Arnica louiseana var. mendenhallii +  and Arnica louiseana var. pilosa +
Arnica griscomii subsp. frigida +
Arnica griscomii +
subspecies +
campanulate +  and cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +