Pringle's Clustervine
Jacquemontia pringlei
Family: Convolvulaceae
Clustervine is a vigorous, climbing perennial vine with dense gray-green foliage and 1" pale bluish-white flowers which are borne in great profusion during the warm months. Expect many feet of growth each season if given lots of water. It can climb if encouraged but mostly its found scrawling on the ground. Frost usually makes this plant dormant, but it regrows almost immediately from the roots again.
Photo by Anthony Mendoza, SEINET
Jacquemontia pringlei on iNaturalist
Plant in full to part sun, moderate to low water when established. Hardy into the low 20s°F.
Probably moth pollinated but many pollinators use the flowers.
Jacquemontia is named for Victor Jacquemont (1801-1832) a French botanist, while pringlei is named for Cyrus Gurnsey Pringle (1838-1911) who collected for Asa Gray.
Found on basalt substrates, in hilly areas, on rocky cliffs, in canyons and oak woodlands from 3,000-4,500’ in southern Arizona, south into Sonora and Sinaloa.
Flower detail of Jacquemontia pringlei, photo by Eric Hough, iNaturalist
Another species, Jaquemontia agrestis, occurs only in a few spots in the state (in the Santa Rita, Atascosa, and Baboquivari mountains in southern Arizona). The flower is a smaller blueish flower. This one tends to like disturbed locations, especially where its found in Mexico. Photo by Sue Carnahan, SEINET