Rheum telianum

Tel ışkını

Perennial herb, with thick rhizomes, stem up to 50 cm tall, erect, glabrous, slightly verrucose, 10–20 in diam. at base, unbranched and with only basal leaves. Basal leaves 1 , petiolate; petioles 2–20 cm, glabrous; leaves blade green, reniform-rotate, 6.5–100.0 × 4.5–56.0 cm, leathery, both surface glabrous, upper surface of leaves warty, basal veins reticulate with 5–6 prominent red veins, middle one stout, leaves base cordate, margin minutely denticulate, apex retuse, ocrea glabrous, ca. 3 cm. long, brown, clasping. Inflorescence a narrow panicle with usually two short lateral branches, dense, glabrous. Pedicel 6–11 mm, jointed below middle. Flowers pinky and pale-yellow, bisexual, 3- or 5-fascicled. Perianth 6 equal segments united below, perianth length 3–6 mm, persistent, tepals 6, obovate, outer 3 smaller and inner 3 bigger . Styles 3. Stamens 9, inserted at bottom of calyx, slightly comperessed. Ovary obovoid, stigmas capitate inflated. Fruits samaroid achene with three winged. Also, perianth segments persistent in achene. Achenes cordate-triangular, 8–15 × 8–16 mm, surface central part greenish-brown, wings reddish-purple , base cordate, apex retuse; wings membraneus, lustrous, 2–5 mm wide, entire.

Endemic.