Hypericum x cyathiflorum N. Robson

Shrub up to c. 1-5 m tall, with branches widely spreading. Stem orange, 4-angled but not ancipitous when young, soon 2-lined, eventually terete; internodes 10-60 mm long, shorter than leaves; bark reddish-brown. Leaves rather broadly petiolate, with petiole 1-2.5 mm long; lamina 30-75 x 8-20 mm, lanceolate, acute to apiculate, margin plane, base cuneate, paler beneath, not glaucous, chartaceous; venation: 4-5 pairs main laterals, all free or subdistally closed, with subsidiaries not prominent and obscure tertiary reticulum; laminar glands dots and short streaks; ventral glands absent. Inflorescence 1-9-flowered, from 1-3 nodes, subcorymbiform; pedicels 5-10 mm long; bracts reduced, ± narrowly elliptic, persistent. Flowers 40-50 mm in diam., cyathiform; buds narrowly ovoid, acute. Sepals 6-9 x 3.3-4.5 mm, free, imbricate, subequal, erect in bud and fruit, ovate-lanceolate or elliptic to oblong- spathulate, acute to apiculate-obtuse or rarely rounded-apiculate, margin entire to minutely denticulate, hyaline, sometimes reddish; midrib ± distinct, veins not prominent; laminar glands linear, c. 12. Petals golden yellow, ± shallowly incurved, 20-30 x 15-19 mm, 2.5-3 x sepals, broadly oblong-obovate, with apiculus subterminal, obtuse; margin entire. Stamen fascicles each with c. 45 stamens, longest 9-13 mm long, 0.3-0.4 x petals; anthers yellow. Ovary 7-8 x 4-5-5 mm, ovoid-conic; styles 4.5-5 mm long, c. 0-6 x ovary, free, suberect, outcurved near apex; stigmas truncate. Capsule c. 20 x 10 mm, ovoid-conic, ridged. Seeds not seen.