Plant: perennial vine; stems pubescent with 4-6-armed stellate trichomes, rarely glabrate Leaves: broadly ovate to ovate, 2-6.5 cm long, 1.5-4.8 cm wide, the base shallowly cordate to truncate, the apex acute or less often retuse to obtuse, sometimes mucronate INFLORESCENCE: axillary, loose cymes of 1-7 flowers; peduncles 1-11 cm long, longer than the leaves; bracts linear, to 6 mm long Flowers: pedicels 2-10 mm long, erect to nodding in fruit; sepals more or less equal, 5.5-9 mm long, pubescent without and to a lesser degree within, the apices acute, the outer sepals ovate to broadly ovate, the middle sepals falcate, the inner sepals narrowly ovate; corollas funnelform, 1.4-2.7 cm long, lavender to white, glabrous; stamens 5-10 mm long, included, the anthers 1.5-2 mm long; ovary ovoid, 1-1.5 mm long, 2-locular, glabrous; styles 7-9 mm long Fruit: FRUITS broadly ovoid, enclosed by accrescent sepals, 5-6 mm long. SEEDS 1-4, 2-2.5(-3) mm long, trigonous, brown, minutely areolate and ruminate Misc: basaltic hills and rocky cliffs; 900-1350 m (3000-4500 ft); Apr-Oct REFERENCES: Austin, Daniel F. 1998. J. Ariz. - Nev. Acad. Sci. Convolvulaceae 30(2): 61.

Kearney and Peebles, 1971, Austin 1998

Common Name: Pringle's clustervine Duration: Perennial Nativity: Native Lifeform: Shrub General: Perennial vine, stems woody near the base, pubescent to caulescent on younger stems with appressed hairs. Leaves: Broadly ovate to ovate, 2-6.5 m long, 1.5-5 cm wide with shallowly cordate to truncate base, the apex acute or retuse to obtuse, sometimes mucronate. Flowers: Large funnelform flowers, lavender to white, 1.5-3 cm long, on pedicels 2-10 mm long, erect or nodding in fruit, the sepals more or less equal, 5-6 mm long, pubescent without, lesser so within, bearing oblong stigma lobes. Fruits: Fruit is an ovoid capsule subtended by papery sepals. Ecology: Found on basalt substrates, in hilly areas, on rocky cliffs, in canyons and oak woodlands from 3,000-4,500 ft (914-1372 m); flowers April-October. Notes: Distinguished by the cordate leaf bases, the white corolla and having oblong stigma lobes. Ethnobotany: Unknown Etymology: 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. Synonyms: None Editor: LCrumbacher, 2011