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Clematis columbiana
Also called Blue Clematis
Rock clematis (Clematis columbiana), also called Rocky Mountain clematis or blue clematis, is a North American wildflower that either climbs or spreads from rhizomes, with blue-purple sepal flowers. It is grown mainly as a hardy native perennial in dry, rocky, well-drained sites.
Clematis columbiana, the Rocky Mountain clematis, is a species in the buttercup family from the western United States.
According to Plants of the World Online Rocky Mountain clematis is native mainly to the Rocky Mountain states from Idaho to New Mexico, but also grows in Texas, Arizona, and the Dakotas. In Arizona it is limited to northern and eastern parts of the state, listed as Coconino, Navajo, Apache, and Greenlee counties. The range in New Mexico is in the north and in Texas it is limited to the northwest. To the north in Colorado it grows in the central mountains and the west while in Utah it grows in the south and east of the state. In Wyoming it is mostly found in the north of the state. However, it also grows in the east in the Black Hills and crosses over into South Dakota. There and in the Killdeer Mountains in North Dakota only variety tenuiloba is found unlike much of the rest of the range where both are found and plants halfway between the two varieties occur. In Montana it is found in the western half of the state, but is only rarely recorded in far west.
Rush Stem Clematis · Clematis akebioides · Alpine clematis · Goat's Beard · Evergreen Clematis · Clematis aromatica · Pine hyacinth · Bigelow's leather flower · Traveler's-joy · Satincurls · Gold Wool Clematis · Early Virgin's Bower
Text excerpted from the Wikipedia article Clematis columbiana by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
Pet safety from the ASPCA toxic and non-toxic plant lists.
