Notobubon tenuifolium (Thunb.) Magee

Slender shrub, 1.2-3.0 m tall. Stem solitary, sparsely branched above ground level, branches glabrous. Leaves regularly arranged along the upper parts of the branches, 80-300 mm x 60-140 mm; blade narrowly ovate to ovate, 3-pinnate. Ultimate leaflet segments very narrowly ovate, (12)20-38(55) mm x (4)6-15(19) mm, decreasingly pinnatisect; base attenuate; venation pinnate; concolorous, usually bright green, less often slightly glaucous; lobes narrowly oblong, flat, 4-30 mm x 1-2 mm, margins entire; terminal lobes 2-3 times longer than adjacent lateral lobes. Petioles up to 45(55) mm long, sheathing at the base only. Inflorescence short (less than 1.5 times as long as the diameter of the primary umbel), rarely with 2 smaller lateral umbels. Primary umbel with (22)48-64(84) rays, orbicular; bracts linear to lanceolate, apex acuminate, glabrous; rays (41)57-82(94) mm long, subequal, glabrous; bracteoles linear to lanceolate, apex acuminate, glabrous, usually shorter than raylets; raylets glabrous. Flowers with sepals minute, 0.1-0.2 mm long, apex obtuse to acute, glabrous; petals glabrous. Fruit rotund to rarely elliptic, 3.0-4.5(5.0) mm x 2.5-3.0 mm; mericarps homomorphic; median and lateral ribs slightly prominent to prominent; marginal ribs narrowly-winged; commissural vittae broad; vallecular vittae broad; additional vittae under vascular bundles in ribs, smaller than vallecular vittae.