Convolvulus volubilis Brouss. ex Link, Phys.Beschr. Canar. Ins. 145. 1828 [1825]. (Buch 1828: 145).

Wood, John R. I., Williams, Bethany R. M., Mitchell, Thomas C., Carine, Mark A., Harris, David J. & Scotland, Robert W., 2015, A foundation monograph of Convolvulus L. (Convolvulaceae), PhytoKeys 51, pp. 1-282 : 109

78. Convolvulus volubilis Brouss. ex Link, Phys.Beschr. Canar. Ins. 145. 1828 [1825]. (Buch 1828: 145).

Rhodorrhiza volubilis (Brouss. ex Link) Bolle, Bonplandia 9: 54. 1861. ( Bolle 1861: 54). Type. Based on Convolvulus volubilis Brouss. ex Link

Convolvulus diversifolius Mendoza-Heuer, Cuad. Bot. Canaria 12: 27. 1971, nom. illeg., non Convolvulus diversifolius Spreng. (1824). ( Mendoza-Heuer 1971: 27). Type. CANARY ISLANDS, Bourgeau 1427b (holotype P00434110!).

Type.

CANARY ISLANDS, Tenerife, Buch 204 (holotype B†); Tenerife, Risco de Tagana, 27 Mar. 1855, Bourgeau 1427b (neotype P00434110!, designated here).

Description.

A liana or scrambling shrub, the stems woody below, vegative parts glabrous to thinly pilose. Leaves petiolate, 5-7 × 0.5-2.2 cm, linear-lanceolate, acute to obtuse, entire, base rounded, glabrescent to thinly pilose, veins prominent beneath; petioles 4-12 mm. Flowers 1-3 in pedunculate axillary cymes; peduncles 1-2.5 cm, slender; bracteoles 1-3 mm, filiform; pedicels 3-7 mm; outer sepals 6 × 3 mm, broadly oblong, slightly constricted below triangular, acute, with a greenish apical portion, inner sepals ovate, slightly smaller; corolla 2 cm, whitish with pink, pilose midpetaline bands, deeply lobed with lanceolate lobes; ovary glabrous; style glabrous, divided c. 3 mm above base, stigmas 6 mm. Capsule not seen.

Distribution.

Endemic to the Canary Islands: Tenerife and La Gomera; 300-800 m (Bourgeau 1427, Carine & Santos Guerra 196c, Lowe s.n. [19/4/1861]).