Arnica lanceolata subsp. lanceolata

Common names: Lanceleaf arnica arnica à aigrettes brunes
Endemic
Synonyms: Arnica mollis var. petiolaris Fernald
Treatment appears in FNA Volume 21. Treatment on page 373.

Leaves: basal petiolate, blades elliptic-lanceolate or oblanceolate, margins subentire, denticulate, or dentate-serrate; cauline mostly sessile (proximalmost pair petiolate), blades lanceolate to elliptic-lanceolate or oblanceolate, margins subentire, irregularly denticulate, or serrate, faces glabrate to scantily pilose. Phyllaries narrowly to broadly lanceolate. 2n = 76.


Phenology: Flowering Jun–Sep.
Habitat: Moist areas, stream banks, gravel bars, to subalpine meadows
Elevation: 0–1000 m

Discussion

Selected References

None.

Lower Taxa

None.
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 +
Nuttall +
decurrent +
compound +  and simple +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;elliptic-lanceolate or oblanceolate +
2cm;6cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
connate +  and distinct +
Lanceleaf arnica +  and arnica à aigrettes brunes +
stipitate-glandular +  and hairy +
stipitate-glandular +  and hirsutulous +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
N.B. +, Que. +, Maine +  and N.H. +
0–1000 m +
glabrate +  and scantily pilose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Moist areas, stream banks, gravel bars, 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 />) +
narrowly campanulate;turbinate +
petiolate +  and sessile +
4 (?) +  and 8 (?) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
serrate +, denticulate +, subentire +  and dentate-serrate +
2-carpellate +
subplumose +  and barbellate +
persistent +
10 +  and 50 +
aristate +
Flowering Jun–Sep. +
8 +  and 15 +
Trans. Amer. Philos. Soc., n. s. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
distinct +
4 +  and 20 +
exalbuminous +
branched +  and simple +
solitary +  and densely clumped +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Arnica mollis var. petiolaris +
Arnica lanceolata subsp. lanceolata +
Arnica lanceolata +
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 />) +