Notobubon pearsonii (Adamson) Magee

Slender shrub, 0.5-1.0 m tall. Stem well branched at ground level, branches remaining simple-stemmed, glabrous. Leaves densely and regularly arranged along the upper parts of the branches; flat-topped in outline, 20-50 mm x 15-40 mm; blade narrowly ovate to broadly ovate, 2-pinnate. Ultimate leaflet segments ovate to obovate, 8-20 mm x 4-10 mm, weakly pinnatisect or 2-to 3-sect; base attenuate, venation not visible; concolorous, green to glaucous; lobes linear, subterete, 4-15 mm x 0.5-1.0 mm, margins entire; terminal lobes subequal to adjacent lateral lobes. Petioles up to 5 mm long, sheathing along their entire length. Inflorescence long (more than two times longer than the diameter of the primary umbel), peduncle persistent, with 0-3 lateral umbels. Primary umbel with (6)9-14(19) rays, slightly orbicular; bracts linear to lanceolate, apex acuminate, glabrous; rays 25-40 mm long, unequal to subequal, glabrous; bracteoles linear to lanceolate, apex acuminate, glabrous, shorter than raylets; raylets glabrous. Flowers with sepals minute, 0.1 mm long, apex obtuse to acute, glabrous; petals glabrous. Fruit elliptic, 3.0-3.5 mm x 1.5 mm; mericarps homomorphic; median and lateral ribs slightly prominent; marginal ribs not winged; commissural vittae broad; vallecular vittae broad.