Hypericum xylosteifolium (Spach) N. Robson

Shrub up to 1.5 m tall, suckering and thicket-forming, deciduous, with branches erect to spreading. Stems green to pinkish, 4-lined and ancipitous when young, soon 2-lined, eventually terete; internodes 10-40 mm long, shorter than leaves; bark fissuring. Leaves petiolate, with petiole 4-10 mm long; lamina (15-)20-73 x 8-26 mm, oblong or elliptic to lanceolate or oblong-ovate, rounded or truncate to apiculate or obtuse, margin plane, base rounded to broadly cuneate, paler beneath, not glaucous, chartaceous; venation: (3)4-6 pairs of ascending main lateral veins, not always distinct from the midrib branches, with tertiary reticulation dense, conspicuous; laminar glands small; intramarginal glands dense. Inflorescence 1-7(-c. 25)-flowered, terminal, broadly pyramidal to subcorymbiform, from 1-2(3) nodes, sometimes with 1-2 pairs of subsidiary branches; pedicels 4-7(-10) mm long; bracts foliar or reduced or linear, and then sometimes with sessile yellowish marginal glands, deciduous. Flowers 15-30 mm in diam., stellate; buds ellipsoid, rounded. Sepals 4.5-12 x 1.3-2.5 mm, open (not imbricate), subequal to unequal, very narrowly oblong or narrowly elliptic to oblanceolate-spathulate, acute, margin entire or with sessile to shortly stipitate yellowish flat-topped glands; (3)5-7-veined reticulately branched, midrib distinct; laminar glands linear to punctiform. Petals golden yellow, not tinged red, spreading, 8-15 x 1.5-4.5 mm, c. 1.3-2 x sepals, narrowly oblanceolate to narrowly obovate, without apiculus, margin with spaced sessile dark red glands. Stamen fascicles each with 10-11 stamens, longest (8-)12- 15 mm long, about equalling petals; anthers pale orange. Ovary 2.5-3.5 x 2.3 mm, ovoid-conic to subglobose; styles 7-9 mm long, 2.5-3 x ovary, free, erect to suberect, narrowly divergent in upper 1/3. Capsule 5.7 x 5.7 mm, subglobose to globose. Seeds pale brown, c. 0-7 mm long, cylindric, not carinate, shallowly linear-foveolate.