Arnica

	Common name is	Summary
Arnica angustifolia	Narrow leaf arnica	Only a couple of collections from the Haines vicinity. Seems likely to be limited to the northern continental margins of the region.
Arnica chamissonis	Leafy Arnica	Apparently only four collections from the region in ARCTOS and/or e-Flora BC. North Prince of Wales Island, Mitkof Island, Haines, and Dry Bay.
Arnica cordifolia	Heart-leaved Arnica	Apparently only collection from Southeast Alaska was made near Haines. Overall range appears to be more continental, so probably limited to margins of region.
Arnica griscomii	Snow Arnica	Southeast Alaska appears to be at the southwestern limits of the range of this species. Only a single collection from the region in ARCTOS, from Mitkof Island. A second collection from near Haines is in a different herbarium. Mitkof Island records appears to be something of an outlier (both in terms of range and expected habitat), and this species is probably only to be expected along the north eastern margins of the region.
Arnica lanceolata	Clasping Arnica	Fairly common perennial herb with yellow daisy-like flowers found in riparian areas, meadows and along roadsides. Taxonomic changes make tracking collections a little difficult. In ARCTOS, most seem to be linked with A. lanceolata, while in e-Flora BC, more are associated strictly with A. lanceolata ssp. prima. In ARCTOS, collections from throughout much of the region, though more weighted towards the outer coast. Gaps in the extreme south, and in the central inner islands and mainland, but probably occurs throughout.
Arnica latifolia	Broad-leaf Arnica	Probably somewhat common herb with yellow daisy-like flowers and 2-4 pairs of opposite leaves. Collections from throughout, though more in the northeastern part of the region. Only three collections from outer islands, and none from the central mainland.
Arnica lessingii	Nodding Arnica	Several collections, mostly from the northern part of the region. A single collection from northern Prince of Wales Island, and another from Dall Island are the only collections in ARCTOS south of Chichagof Island (though it has been reported from Baranof Island, as well).
Arnica lonchophylla	Longleaf arnica	Apparently no collections from close to the region. Probably does not occur.
Arnica mollis	Hairy Arnica	Single collection from Shakes Lake in 1993. Even assuming collection is correctly assigned, it is not clear whether this species is established in the region, as Southeast Alaska would appear to be near the northwestern-most limits of the regular range (though there are a handful of collections from further west in Alaska). However, other collections from northwestern British Columbia suggest the possibility that this species could occur at the northern margins of the region.
Arnica ovata	Sticky Leaf Arnica	A single collection from a Juneau Icefield nunatak in 1982 is the only one for the region. It was reported to be common in the location it was collected.

1. Inflorescence with both ray and disc flowers…………2

1. Inflorescence with disc flowers only……………….A. parryi

2.Anthers purple…………………………………….A. lessingii

2. Anthers yellow ……………………………………3

3.Some stem leaves petiolate…………………………6

3.All Stem leaves sessile………………………………4

4.Pappus white…………………………………………A. latifolia

4. Pappus straw or tawny colored………………………5

5.Phyllaries with white tufts of hair on tips……………A. chamissonis

5.Phyllaries lacking white tufts…………………………A. lanceolata

6.Heads nodding…………………………………A. griscomii

6.Heads erect……………………………………A. ovata