Endemic Vascular and Non-vascular Plants of Idaho: Preliminary List
compiled by Michael Mancuso, IDCDC Botany Program Leader
1999
The Natural Resources Conservation Service PLANTS database of Idaho vascular plants forms the basis of this list. I edited the PLANTS database list based on a review of some of the regional floras, my experience with Idaho flora, and personal taxonomic interpretations. This list of 62 species has not been reviewed and should be considered preliminary.
Endemic Non-vascular Plants of Idaho
Endemic Vascular Plants of Idaho
*Allium aaseae
*Allium tolmiei var. persimile
Astragalus adanus
*Astragalus amblytropis
*Astragalus amnis-amissi
*Astragalus aquilonius
*Astragalus atratus var. inseptus
Astragalus beckwithii var. sulcatus
Astragalus camptopus
Astragalus cusikii var. flexilipes
*Astragalus cusickii var. packardiae
*Astragalus vexilliflexus var. nubilus
*Carex aboriginum
*Castilleja christii
*Cardamine constancei
Chaenactis evermannii
Chrysothamnus parryi ssp. salmonensis
Cirsium magnificum
*Corydalis caseana ssp. hastata
Cryptantha salmonensis
*Cymopterus davisii
*Cympoterus douglassii
*Dasynotus daubenmirei
*Douglasia idahoensis
Draba argyrea
Draba hitchcockii
Draba sphaerocarpa
*Draba trichocarpa
*Eriogonum capistratum var. welshii
*Eriogonum meledonum
*Erigeron salmonensis
Erythronium grandiflorum ssp. nudipetalum
Frasera montana
*Hackelia davisii
*Halimolobos perplexa var. perplexa
*Haplopappus insecticruris
Hymenopappus filiformis var. idahoensis
*Lepidium papilliferum
Mentzelia torreyi var. acerosa
Mertensia campanulata
*Mimulus ampliatus
*Oenothera psammophilia
*Oxytropis besseyi salmonensis
Penstemon laxus
Penstemon montanus var. idahoensis
Penstemon pumilus
Phacelia idahoensis
*Phlox idahonis
*Physaria didymocarpa var. lyrata
*Saxifraga bryophora var. tobiasiae
Stanleya tomentosa var. runciniata
*Synthyris platycarpa
*Thelypodium repandum
Thlaspi idahoense var. idahoense
*Thlaspi idahoense var. aileene
* conservation concern in Idaho
