X04 MISC. PUBLICATION 303, U. DEPT. OF AGRICULTURE 
Clematis palmeri Rose. Palmer clematis. 
Viorna palmeri (Rose) Woot. and Standi. 
Range : 14. 
Site: Dry, well-drained, sun. 
Fruit: Achene. 
A vine. 
Clematis pauciflora Nutt. Hope-vine. 
Range : 5. 
Site: Dry, well-drained, sun. 
Fruit : Achene. 
A trailing, clambering, or climbing vine ; flowers March-April. 
Clematis pitcheri Torr. and Gray. Red-flowered clematis. 
G. fiUfera Benth., C. simsii of auth., not Sweet, Viorna pitcheri (Torr. and 
Gray) Britt., V. niifera (Benth.) Woot. and Standi. 
Range : 11, 16, 17, 20, 25, 30. 
Site: Dry, well-drained, sun. 
Fruit: Achene. 
A high-climbing vine; flowers June-September. 
Clematis pseudoalpina (Kuntze) Nels. 
0. pseudoatragene pseudoalpina Kuntze, G. alpina occidentalis (Hornem.) 
Gray, Atragene occidentalis Hornem., A. pseudoalpina (Kuntze.) Rydb. 
Range: 9, 12, 13, 14. 
Site: Well-drained, sun. 
Fruit : Achene. 
A vine ; flowers April-June ; commonly occurs at high elevations. 
Clematis reticulata Walt. 
Viorna reticulata (Walt.) Small. 
Range: 11, 20, 29, 30. 
Site : Dry, well-drained, sun. 
Fruit: Achene. 
A branching vine ; flowers in July ; occurs on sandy and other soils. 
Clematis simsii, see Clematis pitcheri. 
Clematis subreticulata Harb. 
Viorna suhreticulata Harb. 
Range: 29, 30. 
Site: Dry, well-drained, sun. 
Fruit : Achene. 
A vine ; occurs on sandy and other soils. 
Clematis texensis Buckl. 
G. coccinea Engelm., Viorna coccinea (Engelm.) Small, 
Range: 17, 20. 
Site: Well-drained, sun. 
Fruit : Achene. 
A branching vine; flowers July-September, 
Clematis versicolor Small. 
Viorna versicolor Small. 
Range : 25. 
Site: Dry, well-drained, sun. 
Fruit : Achene. 
A vine. 
Clematis verticillaris DC. Mountain clematis. 
Atragene americana Sims. 
Range : 23, 24, 26, 27, 28. 
Site : Well-drained, moist, shade. 
Fruit: Achene, available July-August. 
A trailing or climbing vine ; flowers May-June ; often occurs on calcareous soil ; 
a comparatively vv^eak climber without great luxuriance. 
Clematis viorna L. Leather-flower. 
C. glaucophylla Small, C. flaccida Small, Viorna viorna (L.) Small. 
Range: 25, 27, 28, 29, 30. 
Site: Dry, well-drained, sun. 
Fruit : Achene. 
A vine ; flowers May-August ; usually occurs in rich soil. 
