Arnica parryi

A. Gray

Amer. Naturalist 8: 213. 1874.

Common names: Parry’s arnica nodding arnica
IllustratedEndemic
Basionym: Arnica angustifolia subsp. eradiata A. Gray Proc. Acad. Nat. Sci. Philadelphia 15: 68. 1864
Synonyms: Arnica parryi subsp. sonnei (Greene) Maguire Arnica parryi var. sonnei (Greene) Cronquist
Treatment appears in FNA Volume 21. Treatment on page 373. Mentioned on page 367.

Plants 15–50 (–60) cm. Stems simple or branched among heads. Leaves (2–) 3–4 pairs, basal and cauline (basal usually withered by flowering, petiolate or subsessile, blades ovate or nearly round to oblong-ovate, much smaller than cauline; sterile rosettes often present, proximal cauline often crowded toward stems bases); petiolate; blades broadly to narrowly lanceolate, oblong-ovate, ovatelanceolate, or round, 4–22 × 1–6 cm, (bases obtuse or cuneate to truncate) margins usually entire, sometimes sparsely denticulate, faces scantily to moderately pilose (hairs white), adaxial sparsely stipitate-glandular (distal cauline leaves sessile, extremely reduced, nearly linear to narrowly elliptic-lanceolate). Heads (1–) 3–9 (–14; often nodding in bud). Involucres turbinate to narrowly campanulate. Phyllaries 8–20, linear to narrowly lanceolate. Ray-florets usually 0 (sometimes peripheral florets pistillate; corollas yellow, laminae rudimentary). Disc-florets 20–50; corollas yellow (1 or more lobes sometimes expanded, giving appearance of laminae); anthers yellow. Cypselae brown to black, 4–7 mm, glabrous or sparsely stipitate-glandular to densely hirsute; pappi usually stramineous, rarely tawny, bristles barbellate to ± subplumose. 2n = 38, 57, 76.


Phenology: Flowering May–Sep.
Habitat: Open conifer forests to alpine meadows
Elevation: 500–3800 m

Distribution

V21-933-distribution-map.gif

Alta., B.C., Yukon, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Arnica parryi"
76 +, 57 +  and 38 +
stipitate-glandular +
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 +
A. Gray +
decurrent +
Arnica angustifolia subsp. eradiata +
compound +  and simple +
4 cm40 mm <br />0.04 m <br /> (22 cm220 mm <br />0.22 m <br />) +
round;ovatelanceolate;round;ovatelanceolate;oblong-ovate;lanceolate +
1cm;6cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellate +  and more or less subplumose +
connate +  and distinct +
Parry’s arnica +  and nodding arnica +
stipitate-glandular +  and hairy +
brown +  and black +
sparsely stipitate-glandular +  and densely hirsute +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Yukon +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
500–3800 m +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Open conifer forests to alpine 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 />) +
turbinate;narrowly campanulate +
cauline +  and basal +
3 (?) +  and 4 (?) +
deltate +
denticulate +
2-carpellate +
subplumose +  and barbellate +
tawny +  and stramineous +
persistent +
10 +  and 50 +
aristate +
Flowering May–Sep. +
8 +  and 20 +
Amer. Naturalist +
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 +
Arnica parryi subsp. sonnei +  and Arnica parryi var. sonnei +
Arnica parryi +
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 />) +