Hypericum montbretii Spach

Perennial herb 0.15–0.6 m tall, erect to decumbent, rarely rooting but sometimes branching from base (Hagemann, 1989: f. 54), with stems rather few, unbranched below inflorescence or rarely with with basal and sometimes 1(2) median innovations after flowering. Stems very narrowly 2–4-lined when young, soon terete, eglandular or sometimes with a few scattered reddish glands; internodes 25–70 mm, exceeding leaves. Leaves sessile, amplexicaul, spreading to erect; lamina 15–55 × 5–30 mm, ovate to oblong or (triangular-)lanceolate to linear-lanceolate, paler beneath, chartaceous; apex subacute or acute to rounded, margin entire or sometimes in uppermost or rarely nearly all leaves black-glandular-denticulate, base cordate to rarely rounded; venation: 3 pairs of main laterals from lower ¼ of midrib, branched, with dense, sometimes obscure tertiary reticulation; laminar glands all pale or rarely some black, usually dense; marginal glands black, irregular. Inflorescence 3–c. 70-flowered, from (1–)2–3(–4) nodes, sometimes with 1–2 flowering branches below, the whole corymbiform to broadly pyramidal in flower, with extended monochasial branches in fruit; bracts reduced-foliar, entire; bracteoles linear, black-glandular-fimbriate and -auriculate. Sepals 5, subequal to equal, basally united, 5–8 × 0.7–1.5 mm, linear-lanceolate to ± narrowly oblong, acute, spreading to reflexed, with dense to rather sparse long to short glandular cilia or sessile glands; veins 3–4(–5?), outer branched, not prominent; laminar glands pale, punctiform to shortly striiform with some submarginal to distal black or almost all black; marginal glands black. Petals 5, golden yellow (to orange-yellow – Gorschkova, 1949), not tinged red, 8–14 × 3.5–5 mm, obovate to broadly elliptic, sometimes subunguiculate, rounded; laminar glands pale, punctiform and often black distal and submarginal; marginal glands black, distal, sessile. Stamens 44– 55, longest 7–12 mm, 0.75–0.85 × petals. Ovary 2–3 × 1–1.5 mm, narrowly ellipsoid to cylindric; styles 4–5 mm, (1.5–)2 × ovary. Capsule (7–)8–10 × 4–5 mm, narrowly pyramidal-ovoid to pyramidal-cylindric; valves with numerous prominent round pale vesicles. Seeds stramineous, c. 1 mm; testa ribbed.