Vincetoxicum stocksii S. I. Ali & S. Khatoon

Vincetoxicum Stocksii Ali & S. Khatoon is related to Vincetoxicum arnottianum (Wight) Wight from which it differs in having a conspicuously pedunculate inflorescence and corona lobes linear or narrowly ovate, longer than the staminal column and incurved, whereas in Vincetoxicum arnottianum the inflorescence is not pedunculate and the corona is rhomboidal, shorter than staminal column and without in-curved lobes.

Perennial shrub or undershrub, 30-100 cm tall, stem pubescent. Leaves opposite, (2.5)-5-7 cm x 8-27 mm ovate to ovate-lanceolate, minutely pubescent on both the sides, entire, obtuse to acute. Flowers in pedunculate brnached cymes. Pedicel 2-4 mm long. Calyx 1.5 mm long, divided almost to the base, lobes ½ mm broad, ovate, acute, densely hairy within, left margin glabrous, tip straight. Corona lobes linear to ovate, incurved, longer than the column. Anther tips membranous, broad. Stigma conical.

Distribution: Endemic to Baluchistan.

Fl. Per.: April-May.