Comparison Table - Section Integrifoliae
| Distribution and Habitat |
Habit | Flower Color | Seed Tails | Leaf Texture | Venation | Notes | |
| albicoma | NC Virginia, SE West Virginia shale barrens |
erect, much-branched stems | yellowish, purple-tinged towards base
 |
white to pale yellow, plumose | thin | not prominently reticulate | Flowers usually held below uppermost pair of leaves. Leaf blade abaxially glabrous or nearly so, sparsely or rarely densely villous on veins. |
| baldwinii | Peninsular Florida pine flatwoods |
erect, simple or few-branched stems | pale lavender-pink to violet blue
 |
pale yellow, plumose | thin | not prominently reticulate adaxially | |
| coactilis | NC Virginia: Botetourt, Craig, Giles, Montgomery, Pulaski, Roanoke, Wythe Counties shale barrens, rarely rocky outcrops |
erect, much-branched stems | white to pale yellow, rarely purple-tinged
 |
whitish to pale yellow (rarely tawny), plumose | leathery | ± prominently reticulate adaxially | Flowers usually held below uppermost pair of leaves. Stems and abaxial surface of leaf blades densely silky-tomentose with appressed hairs. |
| fremontii | C USA: KS, MO, NE calcareous prairies and glades |
erect, simple or few-branched stems | purple to bluish-lavender, greenish toward tip
 |
tomentose | leathery | prominently reticulate adaxially | |
| ochroleuca | E USA: GA, MD, NC, NY, SC, VA dry to moist woods, thickets, roadsides etc. |
erect to ± sprawling, simple or few-branched stems | whitish-green to pale yellow, often purple-tinged toward base
 |
yellowish brown to reddish brown, plumose | ± leathery | prominently reticulate adaxially | Flowers usually held well above uppermost pair of leaves. Stems and abaxial surface of leaf blades moderately silky-pilose with spreading hairs, rarely nearly glabrous. |
| socialis | SE USA: AL, GE wet bottomland woods |
erect to sprawling, simple or few-branched stems | violet-blue
 |
downy | thin | not prominently reticulate | rhizomatous, patch-forming |
| viticaulis | NC Virginia: Augusta, Bath, Rockbridge Counties shale barrens |
erect, much-branched stems | pale purple with slight greenish tinge, greenish-white inside
 |
coppery brown, plumose | thin | not prominently reticulate |
Sources:
Grey-Wilson, C. Clematis The Genus. Timber Press, OR. Pp. 200-216, 2000.
Pringle, J.S. Clematis. In: Flora of North America. Volume 3. www.efloras.org, 2007.