Clematis tomentella (Maximowicz) W. T. Wang & L. Q. Li

Basionym: Clematis fruticosa Turczaninow var. tomentella Maximowicz, Fl. Tangut. 2. 1889; Clematis fruticosa f. lanceifolia Kozlova.

Shrubs small, erect. Stems 0.6--1 m; branches shallowly 4--6-grooved, densely puberulous. Leaves simple; petiole 2--5 mm, or absent; leaf blade gray-green, linear-lanceolate, 1--4.5 × 0.2--0.8 cm, leathery, both surfaces densely appressed puberulous, base cuneate, margin entire or proximally 1- or 2-dentate or 1- or 2-lobulate, apex acute; midvein abaxially flat, lateral basal veins inconspicuous. Cymes terminal, (1--)3--10-flowered, sometimes paniclelike; peduncle 0.7--3 cm; bracts linear-lanceolate or linear, 0.4--1.5 cm. Flowers 1.3--2.2 cm in diam.; pedicel 0.5--1.8 cm, densely puberulous. Sepals 4, yellow, ascending, broadly lanceolate, long elliptic, or oblong, 0.9--1.6 × 0.35--0.8 cm, abaxially puberulous, adaxially glabrous or puberulous, margin narrowly winglike, velutinous on inner line, apex shortly cuspidate. Stamens 7--9 mm, glabrous; filaments linear; anthers narrowly oblong, 2--3 mm, apex obtuse. Ovaries densely pubescent; style 6--11 mm, densely villous. Achenes compressed, long elliptic or narrowly ovate, ca. 4.5 × 2 mm, densely pubescent; persistent style ca. 2 mm, plumose. Fl. Jun--Aug.

NW Gansu, SW Nei Mongol, N Ningxia, N Shaanxi.

* Deserts, dry slopes, sand dunes; 1100--2200 m.