Hypericum gentianoides (L.) Britton, Sterns & Poggenb.

Herbs annual, erect, branches strict, in distal 2/3 or from most nodes, 0.7–6 dm, <wiry>. Stems: internodes 4-lined. Leaves appressed, sessile; blade narrowly triangular-subulate to linear-subulate, <scalelike>, 1–4 × 0.4–0.6 mm, subcoriaceous to chartaceous, margins incurved, apex obtuse to rounded, basal vein 1, midrib unbranched. Inflorescences usually pyramidal, 1–24-flowered, branching mostly monochasial. Flowers 3–5 mm diam.; sepals lanceolate to narrowly oblong or linear-lanceolate, unequal, 1.5–2.5 × 0.4–0.8 mm, apex acute; petals orange-yellow to golden yellow, oblong, 2–4 mm; stamens 5–11, 5 separate or obscurely 5-grouped; styles 0.8–1.2 mm; stigmas broadly capitate. Capsules narrowly cylindric-conic, 4–5 × 1–1.2 mm, <length 2–2.7 times sepals>. Seeds 0.4–0.8 mm; testa markedly ribbed-scalariform. 2n = 24.