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Compilation
Arnica diversifolia
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Isotype of Arnica diversifolia Greene [family ASTERACEAE]
Isotype of Arnica mollis Hook. [family ASTERACEAE]
Original material of Arnica diversifolia Greene [family ASTERACEAE]
Isotype of Arnica diversifolia Greene [family ASTERACEAE]
Original material of Arnica ovata Greene [family ASTERACEAE]
Original material of Arnica diversifolia Greene [family ASTERACEAE]
Isotype of Arnica diversifolia Greene [family ASTERACEAE]
Original material of Arnica diversifolia Greene [family ASTERACEAE]
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Name
Identification
Isotype of Arnica diversifolia
Greene
[family
ASTERACEAE
] (stored under name); Verified by Not on sheet,
Related name
Arnica latifolia
Arnica mollis
Arnica diversifolia
Common name
Sticky leaf arnica, Flora of North America Vol. 21
Flora
Entry for Arnica ovata Greene [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Arnica ovata
Greene
[family
COMPOSITAE
], Pittonia, 4: 161. 1900
Arnica diversifolia
Greene
[family
COMPOSITAE
]
Arnica latifolia
Bongard
var. viscidula A. Gray [family
COMPOSITAE
]
Treatment Author(s)
Steven J. Wolf
Information
Plants 10–50 cm. Stems (forming clumps) simple or branched among heads. Leaves 2–3(–4) pairs (basal 1–2 pairs usually withered by flowering, petiolate, petioles broadly winged, blades round-ovate, relatively small; sterile rosettes lacking), mostly cauline; petiolate (at least middle pair, petioles broadly to narrowly winged); blades broadly deltate to ovate, 4–8 × 2–6 cm (middle pair largest), margins irregularly denticulate to coarsely dentate-serrate, apices acute, faces puberulent (hairs minute) and stipitate-glandular. Heads 1–3(–5). Involucres usually narrowly turbinate, rarely narrowly campanulate. Phyllaries 9–20, linear to narrowly lanceolate. Ray florets 8–16, yellow. Disc florets: corollas yellow; anthers yellow. Cypselae brown to black, 5–7 mm, sparsely to moderately pilose and stipitate-glandular; pappi stramineous to tawny, bristles subplumose. 2n = 57, 76.
Phenology
jul-aug (summer), sep (fall)
Altitude range
200–3600 m;
Distribution
USA AlaskaUSA Calif.USA Colo.USA IdahoUSA Mont.USA Oreg.USA UtahUSA Wash.USA Wyo.Canada Alta.Canada B.C.Canada Yukon
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