THE GEOGRAPHICAL DISTRIBUTION OF NORTH DAKOTA PLANTS 233 
Delpkinum hicolor 
Physaria didymocarpa 
Stanleya pinnata 
Sarcohatus vermiculatus 
Abronia micrantha 
Gilia congesta 
Phacelia leucophylla 
Homalobus caespitosus 
Kentrophyta montana 
Sideranthus grindelioides 
Pyrrocoma lanceolata 
Stenotus armerioides 
Townsendia exscapa 
Calochortus Nuttallii 
Juniperus communis 
Juniperus scopulorum 
Others, as before noted, extend eastward to the Sheyenne valley al- 
though less common eastward. Among these are: Viola Nuttallii, A triplex 
Suckleyana, Chamaerhodos erecta, Astragalus racemosus, A. hisculcatus, 
Lomatium foeniculaceum, and Car ex filifolia. 
The western plants belong to the great plains area, ranging chiefly from 
Nebraska to Saskatchewan. A few, such as Gilia congesta, Pentstemon 
a>ngustif alius, Hedeoma nana, Kentrophyta montana, and Picradenia pumila 
seem to have a rather limited range (Colorado, Wyoming, Utah). Many 
extend as far south as New Mexico (see lists on later page), while the follow- 
ing go west into the Pacific coast states: 
Ranunculus glaberrimus 
Delphinum bicolor 
Arabis Holboellii 
A triplex confertifolia 
Navarettia minima 
Allocarya scopulorum 
Phacelia leucophylla 
Mertensia lanceolata 
Potentilla multisecta 
Chamaerhodos erecta 
Lavauxia brachycarpa 
Rhus trilobata 
Gaertneria acanthicarpa 
Erigeron pumilus 
Pyrrocoma lanceolata 
Artemisia cana 
Artemisia dracunculoides 
A rtemisia tridentata 
Crepis occidentalis 
Calochortus Nuttallii 
Eriocoma cuspidata 
Poa Buckleyana 
The Eastern Plants 
Species found along the Red River and not extending into western North 
America are: 
Actaea spicata 
Aquilegia canadensis 
Clematis virginiana 
Anemone quinguefolia (rare) 
Menispermum canadense 
Viola conspersa (rare) 
Caulophyllum thalictroides 
Sanguinaria canadensis 
Xanthoxylum americanum 
Corylus americana 
Leptandra virginica (rare) 
Penthorum sedoides 
Silphium perfoliatum 
Aster sagittifolius 
Allium tricoccum 
Uvularia perfoliata 
Uvularia grandiflora 
Trillium cernuum 
Festuca nutans 
Oryzopsis melanocarpa 
