Clematis (virgin's bower)

..... lvs simple AD ..... ..... ....
..... ..... 3 leaflets: ..... mostly 5 lflts 3-7 lflts
..... ..... slightly toothed or entire coarsely toothed ..... .....
1) sep thin ..... ..... ..... ..... .....
2)--

3)fls numerous, paniculate

 ..... ..... ..... ..... .....
4) white fls perfect; seps densely pubescent on margins & back ..... ..... ..... yam-lvd v.b. (1.terniflora) lvs glabrous; often Japanese escape .....
4) white fls mostly polygamo- dioecious ..... ..... Virginia v.b. (2.virginiana) seps hary at least on back; moist soil; NS to GA ..... .....
3) fls solitary or in groups of 3; yellow & green fls ..... ..... oriental v.b. (4.orientalis) sometimes Japanese escape ..... .....
2) fls dull purple or purplish-blue ..... purple v.b. (6.occidentalis) rocky woods; e QE to DE ..... ..... .....
1) sep thick & firm; urn-shaped calyx ..... ..... ..... ..... .....
7) plants climbing or scrambling; purple bell-shaped fls ..... ..... ..... ..... leatherflower v.b. (9.viorna) X; moist woods & thickets; PA s
7) plants erect or nearly so; yellowish-white fls yellowish-white v.b. (14.ochroleuca = yellowish white) woods & disturbed open places; s NY to GA ..... ..... ..... .....