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.

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 +
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 +
2cm;6cm +
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 />) +