Hypericum latisepalum (N. Robson) N. Robson

Shrubs to 1 m or more, erect, with stems erect from base, distally outcurving; branches slightly 4-lined and ancipitous above, soon terete. Leaves 1–2 mm petiolate; laminae 30 x 15-38 mm, ovate or triangular-ovate to broadly oblong-ovate, paler beneath, chartaceous; apices apiculate-obtuse or very rarely acute to rounded, margins plane, bases rounded to truncate; venation: 5-6 pairs of main laterals from lower half of midrib, with subsidiary midrib branches above, tertiary reticulation obscure; laminar glands dense, elongate-punctiform to punctiform, intramarginal glands dense, ventral glands absent. Inflorescences (1-)3-7(-c. 20)-flowered from 1(-2) nodes, corymbiform; bracts and bracteoles broadly ovate to lanceolate; pedicels 4-8 mm. Flowers(35-)40-50 mm in diam., shallowly cupped, becoming ± stellate; buds ovoid, subacute. Sepals equal, basally imbricate, erect in bud and fruit, 5-8 x 4-5 mm, enlarging in fruit to 8-12 x 5-8 mm, ovate, acute to apiculate-obtuse or rarely rounded, with margins narrowly hyaline, entire or minutely denticulate; veins c. 9; glands linear. Petals golden-yellow, 18-25 x 12-17 mm, broadly ovate to broadly oblong, with apiculus rounded, very short, margins entire, eglandular. Stamen fascicles each with c. 50 stamens, longest 12-17 mm, 0.6-0.7 × petals; anthers golden yellow. Ovary 6-8 × 4-5 mm, ± broadly ovoid; styles 5-7 mm long, c. 0.85 x ovary, appressed, apically curving outwards. Capsule 15-20 x 10-12 mm, 2.5-3.0 × sepals, ± broadly ovoid. Seeds dark chestnut brown, c. 1.5 mm long, cylindric, usually narrowly carinate with cairns sometimes prolonged distally into narrow wing; testa shallowly linear-reticulate.