Linum rupestre

Description: — Herbs, perennial, 25 – 50 (75) cm in height, glabrous, sometimes sparsely pubescent in the basal portion, root thin; stems erect, thickened, striate, unbranched up to the level of the inflorescence, essentially glabrous. Leaves entire, sometimes slightly dentate; basal leaves alternate or opposite, distal leaves alternate; linear to linear-lanceolate, 4.0 – 26.0 × (0.3) 0.5 – 2 mm, sessile; apex acute to acuminate, whitish; 1 - nerved, coriaceus, glabrous, stipular glands present at the base. Inflorescence a cymose panicle, pedicels 2.4 – 21.0 mm long; bracts 2.2 – 5.5 mm long, margin glandular-dentate; apex acuminate, whitish; stipular glands at the base, conspicuous, black; sepals persistent, lanceolate to ovate, (2.4) 2.5 – 5.0 × 0.8 – 1.2 (1.5) mm, generally with a dark wine-red color; margin glandular-dentate, occasionally scariose; apex acuminate to cuspidate, whitish tip, 1 - 3 - nerved, conspicuous nerves, glabrous, stipular glands present at the base; petals yellow, oblanceolate or obcordate, 6 – 11 mm long, pubescent near the base; stamens 2.0 – 8.0 mm long; anthers 0.5 – 1 mm long, yellow; staminodia present, minute; styles free, 3.0 – 6.5 mm long; stigmata capitate, yellow. Fruit widely ovoid, yellow, 1.8 – 2.4 × (1.0) 2.0 – 3.0 mm, glabrous, pericarp thin, apex acute, dehiscent into 10 segments, false septa partially developed, septa with marginal cilia; seeds ovate to widely oblong, reddish-brown, 1.2 – 1.6 × 1.0 mm.