Silene thyrsiantha

Description Perennial plants, glabrous, internode viscid. Stems 33.5 ‒ 35.5 cm tall, pale green, glabrous, viscid, internodes 14 – 32 mm long. Basal leaves 14 ‒ 20 × 2.5 ‒ 4 mm, oblanceolate, base attenuate, acute, apex shortly mucronate, glabrous, minutely ciliate margins, glaucous; cauline leaves oblanceolate to linear, acute, apex acuminate, 7 – 20 × 0.5 – 2 mm, often glabrous. Synflorescence thyrsoid with few flowers, secondary inflorescences with one flower, pedicels (4.5 ‒) 5 ‒ 16 mm long, glabrous. Bracteoles small, lanceolate, 1 – 1.5 mm long. Calyx narrow cylindrical, 8 – 10 mm long, glabrous, coriaceous; teeth membranous at margin, triangular, 2 mm long, two teeth acute with narrow transparent margin, other three teeth slightly broader, rounded, and with broad transparent margin. Petals yellowish (when dried), claw 5 – 5.5 mm long, with broad lateral margins, glabrous, without coronal scales; limb 5 – 5.5 mm long, linear, bifid to base. Anthophore 3 mm long, puberulent. Mature capsule 5.5 ‒ 6 × 3 ‒ 3.5 mm, ovoidoblong. Seeds 0.8 × 0.6 – 0.7 mm, basically reniform, seed testa cells elongate with V-shaped margins.

Figs 1 – 3, 5, 6 A ‒ C; Table 1