Compilation
Dianthera paniculata

Annual herb, up to 35–120 cm tall or more; stems erect, sharply 6-angled, sparsely to densely hairy with up to 2 mm long spreading hairs. Leaf-blades narrowly ovate with prominent veins, at least up to 40 x 14 mm, subglabrous, apex acuminate, base attenuate; petiole up to c. 2–12 mm long. Primary inflorescences arranged in lax axillary cymes spread along the stems, the entire plant looking like a lax inflorescence; leaves of the inflorescence gradually smaller towards the apex of the branches, uppermost ones narrowly triangular-subulate with a thin white margin, c. 4–5 x 0.5 mm; bracts markedly unequal, linear-subulate, up to c. 12 mm, enlarging up to c. 15–20 mm in fruit; bracteoles lanceolate-subulate, up to c. 7 mm long, about as long as calyx. Calyx subglabrous; lobes linear-subulate with a thin white margin, up to c. 6–7 x 1 mm. Flowers pink, c. 12–14 mm long; tube c. 5 mm long; lips up to c. 7 mm long. Capsule 8–9 mm long. Seeds with shortly-stalked small papillae concentrated to the edge.