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FOC | Family List | FOC Vol. 8 | Crassulaceae | Orostachys

7. Orostachys thyrsiflora Fischer, Mém. Soc. Imp. Naturalistes Moscou. 2: 274. 1809.

小苞瓦松 xiao bao wa song

Cotyledon leucantha Ledebour; C. thyrsiflora (Fischer) Maximowicz; Sedum spinosum (Linnaeus) Thunberg var. thyrsiflorum (Fischer) Fröderström; Umbilicus leucanthus (Ledebour) Ledebour; U. thyrsiflorus (Fischer) de Candolle.

Rosette leaves greenish, imbricate, incurved, linear-oblong, 1.5-2 cm, margin minutely dentate or entire; appendage cartilaginous, apex acute and shortly mucronate. Stem leaves linear-oblong, 4-7 × 1-1.5 mm, apical appendage cuspidate and cartilaginous, apex acute. Inflorescence racemose, 4-14 cm; bracts ovate-oblong, shorter than flowers, apex acuminate; pedicels ca. 2 mm. Sepals triangular-ovate, ca. 1.5 × 2 mm, apex acute. Petals white or reddish, basally subconnate. Stamens slightly shorter than or equaling petals; anthers purple. Nectar scales subquadrangular or suboblong, apex emarginate. Carpels narrowly lanceolate-oblong. Styles 1.5-2 mm. Follicles erect. Seeds ovoid, minute. Fl. Jul-Aug.

Steppe slopes, sunny slopes on mountains; 1000-2100 m. Gansu, Xinjiang, Xizang [Kazakhstan, Mongolia, Russia].


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