Convolvulus chinensis Ker-Gawl., Bot. Reg. 4: t. 322. 1818. (Ker-Gawler 1818: t 322).

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 : 50-51

5. Convolvulus chinensis Ker-Gawl., Bot. Reg. 4: t. 322. 1818. (Ker-Gawler 1818: t 322). Figure 3, t. 28-33

Type.

CHINA, cultivated plant grown from seed collected by Staunton at “Pechelee” (holotype BM001053866!).

Description.

Perennial herb with long decumbent stems from a central rootstock to at least 50 cm, glabrous or, on older parts, minutely scabridulous. Leaves petiolate, 3-5 cm long, formed of an oblong, acute, entire central lobe 2-4 mm wide, a broadly cuneate base and horizontally to weakly reflexed auricles, these mostly bifid with acute segments; petioles 4-7 mm. Flowers axillary, pedunculate, solitary; peduncles 3.2-4.5 cm, slighty flexuous; bracteoles 3 mm, linear-filiform; pedicels 4-8 mm; sepals 6-7 × 3.5-4 mm, obovate, obtuse and sometimes mucronate, glabrous, margins scarious, inner sepals slightly larger; corolla 2-2.8 cm long, pink, very shallowly lobed, the midpetaline bands extended as short teeth, nearly glabrous but with a few hairs near apex; filaments glandular below; ovary glabrous; style glabrous, divided 12-14 mm above base, stigmas 2.5-3.5 mm. Capsule glabrous, seeds glabrous, minutely tuberculate.

Notes.

We recognise two subspecies: