Arnica latifolia

Bongard

Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2: 147. 1832.

Common names: Broadleaf arnica
IllustratedEndemic
Treatment appears in FNA Volume 21. Treatment on page 376. Mentioned on page 367.

Plants 10–50 cm. Stems usually simple, sometimes branched distally. Leaves 2–4 (–6) pairs, cauline (basal leaves often persistent on sterile rosettes), petiolate (proximal, petioles relatively short, broadly winged) or sessile (mid and distal); blades lance-elliptic to ovate, 2–10 × 1–6 cm, margins serrate to dentate, apices obtuse to acute, faces glabrous or sparsely villous. Heads 1 or 3–5 (–9). Involucres narrowly turbinate. Phyllaries 8–20, lanceolate to oblanceolate. Ray-florets 8–15; corollas yellow. Disc-florets 20–90; corollas yellow; anthers yellow. Cypselae dark-brown, 5–9 mm, sparsely villous; pappi white, bristles barbellate. 2n = 38, 76.


Phenology: Flowering Jul–Aug.
Habitat: Relatively moist, montane conifer forests to subalpine meadows
Elevation: 500–3300 m

Distribution

V21-945-distribution-map.gif

Alta., B.C., N.W.T., Yukon, Alaska, Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Arnica latifolia"
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 +
Bongard +
decurrent +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
lance-elliptic;ovate +
1cm;6cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
connate +  and distinct +
sessile +  and petiolate +
Broadleaf arnica +
stipitate-glandular +  and hairy +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, N.W.T. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
500–3300 m +
villous +  and glabrous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Relatively moist, montane conifer forests to subalpine meadows +
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 />) +
sessile +  and petiolate +
cauline +  and basal +
2 (?) +  and 4 (?) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
toothed +  and entire +
2-carpellate +
subplumose +  and barbellate +
persistent +
10 +  and 50 +
aristate +
Flowering Jul–Aug. +
8 +  and 20 +
Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
distinct +
4 +  and 20 +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Arnica latifolia +
species +
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 />) +