Hypericum kiboënse Oliv.

Shrub or subshrub up to 2.5 m tall, spreading to straggling and often much branched, with branches strict to ascending, glabrous. Stems orange to vinous red, 2-lined and ancipitous when young, soon terete, internodes mostly shorter than leaves; cortex exfoliating in sheets or strips; bark irregular, flaking. Leaves up to 0.7 mm petiolate or rarely sessile; lamina 6-18(-21) x 2.5-7(-8) mm, oblong to elliptic-oblong or obovate, paler beneath, chartaceous, not glaucous, plane, spreading; apex rounded or mucronulate, margin plane or rarely undulate, base cuneate to rounded; venation: (2)3 pairs of laterals curved-ascending from lower c. 0.35 of midrib; tertiary reticulation well developed but rather obscure; laminar glands pale, dense, unequal, sometimes prominent, sometimes also 1-2 black, subapical, punctiform; intramarginal glands black, dense. Inflorescence 1-c. 10-flowered, from up to 3 nodes, not or scarcely congested, broadly pyramidal when fully developed, with branches from up to 2 nodes below; pedicels 2-4 mm; bracteoles reduced, lanceolate, with dense inframarginal black glands. Flowers c. 15-22 mm in diam.; buds ellipsoid, subacute. Sepals (occasionally 4), 4.5-6 x 1-2.2 mm, subequal to equal, free, oblong- lanceolate to lanceolate, acute, entire or usually with prominent marginal glands or partly glandular (rarely eglandular) -denticulate; veins 5, not branching; laminar glands pale, linear, distally interrupted to punctiform; marginal to inframarginal and occasionally submarginal glands black or occasionally reddish, dense. Petals (occasionally 4) golden yellow, tinged red dorsally, 8-11 x 3^4.5 mm, c. 2 x sepals, elliptic-oblong to oblanceolate, rounded, with apiculate obsolete, subapical; laminar glands pale, linear to distally subpunctiform; marginal and sometimes inframarginal glands black, subprominent on inner margin. Stamens c. 40-50, longest 6-10 mm, c. 0.8-0.9 x petals; anther gland black. Ovary 3(4)-locular, 3-4 x 1- 2 mm, ovoid-pyramidal to ovoid; styles 3(4), 3.5-5, 1-1.3 x ovary, spreading-subincurved. Capsule 6-7 x 3.5 mm, ovoid-pyramidal to ovoid, exceeding sepals, not enclosed by spreading, individually twisted petals. Seeds yellow-brown, c. 0.7 mm long; testa finely scalariform-foveolate.