Arnica lanceolata

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 407. 1841.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 373. Mentioned on page 368.
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Plants (5–) 20–80 cm. Stems solitary to densely clumped, simple or branched among heads. Leaves 4–8 (–10) pairs, mostly cauline; usually sessile (sometimes with partly connate-sheathing bases), sometimes petiolate (proximalmost); blades lance-elliptic, lanceolate, oblanceolate, obovate, or ovate, 4–12 (–20) × (1–) 2–6 (–8) cm, margins subentire to dentate-serrate, apices usually acute, rarely obtuse, faces glabrate to pilose. Heads (1–) 3–10 (–20). Involucres narrowly campanulate to turbinate. Phyllaries 8–15 (–19), narrowly to broadly lanceolate. Ray-florets (5–) 7–17 (–20); corollas yellow. Disc-florets: corollas yellow; anthers yellow. Cypselae brown, 4–8 mm, sparsely hirsutulous, stipitate-glandular; pappi tawny, bristles subplumose.

Distribution

V21-934-distribution-map.gif

Alta., B.C., N.B., N.W.T., Que., Yukon, Alaska, Calif., Idaho, Maine, Mont., N.H., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Cauline leaves mostly sessile (proximalmost pair petiolate); e North America Arnica lanceolata subsp. lanceolata
1 Cauline leaves sessile (including proximalmost pair, bases sometimes partly connate-sheathing); w North America Arnica lanceolata subsp. prima
... more about "Arnica lanceolata"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
obtuse;acute +
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 />) +
ovate;obovate;ovate;obovate;oblanceolate;lanceolate;lance-elliptic +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
connate +  and distinct +
stipitate-glandular +  and hairy +
stipitate-glandular +  and hirsutulous +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, N.B. +, N.W.T. +, Que. +, Yukon +, Alaska +, Calif. +, Idaho +, Maine +, Mont. +, N.H. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
glabrate +  and pilose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
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 +
subentire +  and dentate-serrate +
2-carpellate +
subplumose +  and barbellate +
persistent +
10 +  and 50 +
aristate +
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 +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Arnica lanceolata +
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 />) +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +