Rosularia platyphylla (Schrenk) Berger

Eggli (Bradleya 6 (Suppl.): 75. 1988) did not consider this species to be separable from Rosularia platyphylla.

Rosettes solitary or in groups of 3-5. Each rosette 5-10 cm diam. Leaves spathulate, 4.0-5.0 cm x 2 cm. Flowering stem erect 10-15 cm. Inflorescence an umbel-like panicle with numerous white flowers. V - evergreen plant. Fl - June. Fr - August. P - by seed and division. Not carpet-forming. In St. Petersburg suffers in winter without snow cover. Good for the rock garden and for slopes. Z 5 (4). New.

Rootstock to 2.5 cm thick. Rosette 5-10 cm in diam.; rosette leaves rhomboid-obovate to spatulate, flat, 15-40 × 12-20 mm, densely glandular hairy, base sometimes attenuate, margin ciliate, apex obtuse and emarginate or subacute. Flowering stems 1-4, axillary from outer rosette leaves, simple, ascending, 5-10 cm, puberulent; stem leaves remote, sessile, oblong to linear, 10-15 × 4-5 mm, puberulent, margin ciliate. Inflorescences cymose-corymbiform, 3-5 × 3-4 cm, glandular-pubescent, many flowered; bracts linear-oblong, small. Flowers 5-merous; pedicel shorter than corolla. Sepals ovate, ca. 3 mm. Corolla white, 5-7 mm; tube ca. 2.5 mm; lobes reflexed, ovate. Stamens 10, shorter than corolla. Follicles ovoid-oblong, apex beaked; beak linear. Seeds brown, oblong-ovoid. Fl. Jun-Jul, fr. Aug.

Rootstock thick, with numerous fibrous roots. Rosette 1.5-2 cm in diam.; rosette leaves lanceolate to oblong-lanceolate, 10-20 × ca. 5 mm, densely glandular hairy, apex acuminate. Flowering stem axillary from outer rosette leaves, ascending, 13-20 cm, glabrous; stem leaves remote, oblong to linear, 4-7 × 1-2 mm. Inflorescences cymose-paniculate, with subscorpioid, secund branches. Flowers 5-merous; pedicel shorter than flowers. Sepals lanceolate to elliptic-lanceolate, ca. 2.5 mm, apex acute. Corolla yellow or white with purple striations, campanulate, ca. 5 mm; lobes erect, elliptic-lanceolate. Stamens 10, equaling corolla. Follicles narrowly lanceolate, ca. 5.5 mm, apex acuminate and beaked; beak ca. 1.5 mm. Fl. Jun-Jul.

Central Asia (Tien Shan, Dzungaro-Tarbagatay) and northwestern China. In rocky places, on cliffs and slopes.

C Xinjiang [Kazakhstan, Kyrgyzstan].

Terraces in valleys, slopes in ravines; 2200-2800 m.

Slopes, deserts. N Xinjiang (Manas Xian) [Kazakhstan, Kyrgyzstan].

Umbilicus platyphyllus Schrenk in Fischer & C. A. Meyer, Enum. Pl. Nov. 1: 71. 1841.

Umbilicus turkestanicus Regel & Winkler, Trudy Imp. S.-Peterburgsk. Bot. Sada 6(2): 301. 1879; Cotyledon turkestanica (Regel & Winkler) O. Fedtschenko & B. Fedtschenko.