Convolvulus vidalii Pau, Bol. Soc. Esp. Hist. Nat. 21: 279. 1921. (Vidal y Lopez 1921: 279).

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 : 64-65

21. Convolvulus vidalii Pau, Bol. Soc. Esp. Hist. Nat. 21: 279. 1921. (Vidal y Lopez 1921: 279).

Type.

MOROCCO, Vidal y López s.n. (holotype MA!; isotype BC).

Description.

Perennial herb from a stout tap root with decumbent stems to 30 cm, vegetative parts pilose. Leaves petiolate, 0.7-2.8 × 0. 5-3.3 cm, dimorphic, lower leaves ovate-deltoid, obtuse, margin crenate, base cordate to truncate, upper leaves deltoid, apex acute, margin incised-lobed, base cordate; petioles 1-3 cm, flexuose. Flowers solitary, borne on axillary pedicels; peduncles absent; bracteoles 2-4 mm, filiform; pedicels 3-35 mm, becoming strongly recurved in fruit; sepals 2.5-5.5 × 2.5-5.5, ovate to obovate, acute or obtuse and apiculate; corolla 1.7-3 cm long, purple with cream centre and (usually) dark purple marks around throat, midpetaline bands pilose towards apex; filaments glandular below; ovary glabrous; style glabrous, divided 5-9 mm above base; stigmas c. 4 mm. Capsule glabrous; seeds finely tuberculate.

Distribution.

Endemic to the Western Rif in Morocco (Carine et al. 239, Font Quer 318, Wall 22/5/1936).

Notes.

Distinguished from the Convolvulus pitardii and Convolvulus glaouorum by the complete absence of peduncles, the strongly recurved fruiting pedicels, the shorter sepals and smaller corolla, this is purple with a cream centre and with five distinct dark purple markings in the throat.