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Rare and Endemic Species

Common Name	Scientific Name	Distribution
D = Disjunct | P = Peripheral | L = Limited | CI = Central Idaho | CE = Challis Endemic * Species known only from the Challis area
Dwarf Onion	Allium simillimum	CI
Boise Milkvetch	Astragalus adanus	P
Broad-keeled milkvetch	Astragalus platytropis	L
Wide-fruited sedge	Carex eurycarpa	D
Yellow paintbrush	Castilleja longispica	L
Evermann’s fleabane	Chaenactis evermannii	I
Salmon River rabbitbrush	Chrysothamnus parryi salmonesis	CE
Salmon River Cryptantha*	Cryptantha salmonesis	CE
Desert cryptantha	Cryptantha scoparia	P
Hitchcock’s draba	Draba hitchcockii sp. Nov	CI
Limestone draba	Draba oreibata	D
Salmon River wild rye	Elymus ambigus var. salmonis	CI
Naked sunray	Encelopsis nudicaulis	D
Eriastrum	Eriastrum sparsiflorum wilcoxii	D
Rough fleabane	Erigeron asperugineus	L
White frasera	Frasera Montana	CI
Great Basin gilia	Gilia leptomeria	P
Spicate gilia	Gilia spicata	P
Greene’s haplopappus	Haplopappus greenei	D
Hymenopappas*	Hymenopappus filiformis idahoensis	D
Kelseya	Kelseya uniflora	L
Langloisia	Langloisia setisissima	D
Keeled bladderpod	Lesquerella carinata	CI
Slender fringecup	Lithophragma tenella thompsonii	K
Idaho biscuitroot	Lomatium idahoense	CI
Payette penstemon	Penstemon payettensis	P
Idaho phacelia	Phacelia idahoensis	CI
Hoary phacelia	Phacelia incana	P
White margined phlox	Phlox albomarginata	CI
Desert phlox	Phlox austromontana	L
Geyer’s twinpod	Physaria geyeri var. purpurea	CI
Henderson’s gooseberry	Ribes henersonii	CI
Cutleaf synthyris	Syntheris pinnatifida canescens	L

Challis Field Office  |  1151 Blue Mountain Road |  Challis, ID 83226
208-879-6200  |  Fax: 208-879-6219 |  Office hours: 7:45am - 4:30pm, M-F