Linum striatum Walter

Herbs, perennial, 25–100 cm, glabrous. Stems erect-ascending, unbranched or branched from base, unbranched proximal to inflorescence, conspicuously ribbed distally. Leaves: proximal 5–20 pairs opposite, distal opposite or alternate, erect to spreading; stipular glands absent; blade elliptic to oblanceolate or obovate, 15–35 × 4–10 mm, margins entire, not ciliate, apex obtuse or acute. Inflorescences elongate panicles. Pedicels 0–4 mm. Flowers: sepals persistent, lanceolate to ovate, 1.5–3.5 mm, margins not scarious, eglandular or inner with a few delicate small marginal glands, apex acute or apiculate; petals pale yellow, obovate, 2.7–4.6 mm; stamens 1.5–2 mm; anthers 0.3–0.7 mm; staminodia absent; styles distinct, 1.2–2 mm; stigmas capitate. Capsules globose, carpels convex abaxially, 1.3–1.9 × 1.8–2.3 mm, apex depressed, dehiscing freely into 10, 1-seeded segments, segments falling freely, false septa nearly complete, proximal margins not ciliate. Seeds 1–1.4 × 0.5–0.7 mm. 2n = 36.