Ipomoea longifolia

Plant: perennial herb; somewhat fleshy, rhizomatous; stems trailing, decumbent or ascending Leaves: linear to oblong-lanceolate, entire, 10-12(-20) cm long, 2-4 cm wide, glabrous, the petioles 0.5-1.7 cm long INFLORESCENCE: axillary, mostly 1-flowered; peduncles 3.5-4(-11) cm long; bracts caducous Flowers: pedicels 2-3.5 cm long, mostly erect in fruit; sepals ovate, coriaceous, glabrous, the outer sepals 12-14(-17) mm long, 6-7 mm wide, the inner sepals 15-20 mm long, 7-8 mm wide; corollas funnelform, 7-12 cm long, the limb white to white-cream, 7-8 cm wide, the throat purple; stamens 33-42 mm long, included, the anthers 9-10 mm long, white; ovary conic, 5 mm long, 2-locular, glabrous; styles 40-42 mm long, white Fruit: FRUITS ovoid, 14-16 mm wide, the apiculum 2-3 mm long. SEEDS 1-3(-4), 10-11 mm long, ovoid, brown, with long pilose indumentum on the margins and near the apex Misc: Desert grasslands to oak woodlands; 1000-1850 m (3200-6000 ft); Apr-Aug REFERENCES: Austin, Daniel F. 1998. J. Ariz. - Nev. Acad. Sci. Convolvulaceae 30(2): 61.

Austin 1998, Kearney and Peebles 1969, McDougall 1973

Duration: Perennial Nativity: Native Lifeform: Vine General: Herbaceous perennials, stems stout, semiprostrate, not twining, herbage somewhat fleshy, plants rhizomatous. Leaves: Alternate, but occurring in pairs from the same node, linear to oblong-lanceolate, 10-20 cm long, 2-4 cm wide, margins entire, surfaces glabrous, borne on petioles 5-20 mm long. Flowers: Showy, white to cream with a pink to purple throat, corollas broadly funnelform, 7-12 cm long, 7-8 cm in diameter, sepals 5, broad, ovate with very obtuse tips, glabrous, leathery, scarious margined, the outer sepals 12-17 mm long, 6-7 mm wide, the inner sepals 15-20 mm long, 7-8 mm wide, bracts early deciduous, stamens included, 33-42 mm long, anthers 9-10 mm long, white, flowers usually solitary, borne in leaf axils, peduncles 3.5-11 cm long. Fruits: Capsules ovoid, 14-16 mm wide, with a short, flexible tip (apiculum) 2-3 mm long. Seeds ovoid, 10-11 mm long, brown, with long pilose hairs on the margins and near the apex. Ecology: Found on plains and mesas, desert grasslands and oak woodlands, from 3,000-6,000 ft (914-1829 m); flowering April-August. Distribution: Oklahoma to Arizona and Mexico. Notes: The large, showy white flowers with pink to purple throats and linear to lanceolate leaves with entire margins help to identify this species. Ethnobotany: There is no use recorded for this species, but other species in this genus have uses. Synonyms: None Editor: LCrumbacher 2012