Convolvulus microsepalus R.W.Johnson, Austrobaileya 2: 410. 1987. (Johnson 1987: 410).

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 : 96-97

56. Convolvulus microsepalus R.W.Johnson, Austrobaileya 2: 410. 1987. (Johnson 1987: 410). Figure 9, t. 29-36

Type.

AUSTRALIA, South Australia, Orchard 2626 (holotype AD!; isotypes NCU, COLO).

Description.

Perennial herb from a central taproot with trailing stems to 1 m, plant adpressed pubescent to glabrescent. Leaves petiolate, 1-2 × 0.4-05 cm, lanceolate-deltoid, acute, margin entire to slightly undulate, base shallowly cordate and auriculate, the auricles entire or bifid; petioles 3-8 mm long. Flowers solitary, pedunculate, axillary, becoming recurved in fruit; peduncles mostly 1-2 cm long; bracteoles filiform, 1-1.5 mm; pedicels 3-12 mm; outer sepals 2-3(-4) × 2-3 mm, obovate to broadly elliptic, rounded and minutely apiculate, scarious, glabrous or thinly appressed pubescent; inner sepals similar; corolla 5-7 mm long, white or pink, very shallowly lobed, midpetaline bands almost glabrous except for a few hairs at apex; ovary glabrous; style glabrous, divided c. 2 mm above base, stigmas c. 1.5-2 mm. Capsule glabrous; seeds coarsely and irregularly tuberculate. [ Johnson 1987: 410-411, figure 1; Johnson 2001: 10, figs 3-4, map 1].

Distribution.

Australia: South Australia and adjacent New South Wales (Orchard 211, Badman 32, Copley 192; Vonow 584, Mueller 1852).

Notes.

Very distinctive because of the tiny calyx, lanceolate-deltoid leaves with basal auricles and the distinctive seed ornamentation.