Manulea paucibarbata Hilliard

Annual herb, stems erect or decumbent, 60-400 mm long, solitary and simple at first, soon several-to many-stemmed and loosely branched from the base, glandular-pubescent, hairs to c. 0.25 mm, moderately leafy. Leaves at base of plant opposite and decussate, bases connate, soon alternate upwards and passing into bracts, lowermost blades c. 17-42 x 5-22 mm, lanceolate to elliptic in outline, tapering to a petiolar part 17-25 mm long (roughly 1/3 to 1/2 length of blade), smaller upwards and petiolar part shorter, margins mostly coarsely and irregularly toothed, sometimes almost pinnatipartite, whole leaf glandular-pubescent. Flowers many in simple terminal racemes, usually solitary in each axil, sometimes paired, very lax, the axis usually markedly flexuous. Bracts (lowermost, and the lowermost flowers are often in the axils of the uppermost leaves) c. 10-25 x 2-10 mm, leaflike, rapidly smaller, linear to filiform, glandular-pubescent. Pedicels (lowermost) 8-40 mm, shorter upwards. Calyx obscurely bilabiate, tube 0.2-1 mm long, anticous lobes 2.5-4.5 x 0.5-0.7 mm, posticous ones slightly smaller, glandular-pubescent with several-celled eglandular hairs to 0.3-0.4 mm as well. Corolla tube 5.5-9 x 1-2 mm in throat, ± narrowly funnel-shaped, limb 6-13 mm across lateral lobes, posticous lobes 2.4-5 x 1.5-3.5 mm, anticous lobes 2.6-5.5 x 1.6-4 mm, all oblong to elliptic, obtuse, white or rarely flushed with pinkish-mauve, yellow patch down back of tube, tube glandular-puberulous outside plus eglandular hairs to 0.1-0.25 mm long, glistening glands on backs of lobes, inside a short posticous band of clavate hairs, often dark-coloured in lower half, and three short lateral bands, the hairs fanning out round mouth, these hairs pale, c. 0.1-0.2 mm long. Stamens 4, anticous anthers 0.5-1 mm long, shortly exserted, posticous anthers 0.7-1.4 mm long, included, all filaments glabrous. Stigma 3.5-8.2 mm long, well exserted. Style 0.5-2.5 mm long. Ovary 1-1.5 x 0.75-1 mm. Capsules 4-5 x 2.5-3 mm. Seeds 0.5-0.6 x 0.4 mm, pallid.