Arnica dealbata

(A. Gray) B. G. Baldwin

Novon 9: 460. 1999.

Common names: Mock leopardbane
Endemic
Basionyms: Whitneya dealbata A. Gray Proc. Amer. Acad. Arts 6: 550. 1865
Treatment appears in FNA Volume 21. Treatment on page 375. Mentioned on page 364, 366, 367.

Plants 15–35 cm. Stems mostly simple. Leaves 3–8 pairs, mostly crowded toward bases; petiolate (at least proximal); blades elliptic to oblanceolate or obovate, 5–10 × 0.5–3.5 cm, margins entire, apices acute, faces densely hairy (hairs relatively short, curly) and sessile-glandular (distal leaves sessile, much reduced). Heads 1–6. Involucres campanulate to hemispheric. Phyllaries 5–12 (in 1 series), oblong or elliptic. Ray-florets 5–12; corollas yellow. Disc-florets (functionally staminate): corollas yellow; anthers yellow (styles rarely exserted). Cypselae brown to black, 4–10 mm, sparsely to densely hirsute (hairs usually simple, rarely duplex) and sparsely stipitate-glandular; pappi 0.2n = 38, 76.


Phenology: Flowering Jun–Aug.
Habitat: Open forests, meadows, slopes
Elevation: 1200–2400 m

Discussion

Although Arnica dealbata lacks pappi, morphologic, cytologic, and molecular data (B. G. Baldwin and B. L. Wessa 2000; Baldwin et al. 2002) clearly support its inclusion in Arnica.

Selected References

None.

Lower Taxa

None.

... more about "Arnica dealbata"
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) B. G. Baldwin +
decurrent +
Whitneya dealbata +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
elliptic;oblanceolate or obovate +
0.5cm;3.5cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
Mock leopardbane +
stipitate-glandular +  and hairy +
brown +  and black +
stipitate-glandular +  and hirsute +
obovoid-cylindric +, fusiform +  and conic +
fertile +  and bisexual +
fertile +  and bisexual +
1200–2400 m +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Open forests, meadows, slopes +
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 />) +
campanulate;hemispheric +
cauline +  and basal +
3 (?) +  and 8 (?) +
deltate +
toothed +  and entire +
2-carpellate +
subplumose +  and barbellate +
stramineous +  and tawny +
persistent +
10 +  and 50 +
aristate +
Flowering Jun–Aug. +
5 +  and 12 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
distinct +
4 +  and 20 +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Arnica dealbata +
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 />) +