Lappula deserticola C. J. Wang

Herbs annual, densely cespitose, becoming depressed globose, 4-10 cm in diam. Stems usually several, cespitose, much branched at middle and above, 3-7 cm tall, densely spreading white hispid. Basal leaves forming a rosette; leaf blade spatulate, 1-1.3 cm including petiole, densely spreading hirsute, hairs discoid at base; stem leaves linear, 1-1.5 cm × ca. 2.5 mm, flexed along midvein, rarely flat, densely spreading white hirsute, base attenuate, apex acute. Inflorescences terminal, to 1.5-3 cm in fruit; bracts oblong, 3-5 mm. Fruiting pedicel erect, 1-1.5 mm. Calyx lobes erect, linear-oblong, ca. 1.5 mm, to 2-2.5 mm in fruit, 1/2-2/3 shorter than fruit, spreading white hirsute. Corolla light blue, campanulate, ca. 2.5 mm; throat appendages trapeziform, ca. 0.2 mm; limb 1-1.5 mm wide; lobes oblong. Gynobase not surpassing nutlets. Fruit subglobose, ca. 3 mm in diam.; nutlets triangular-ovoid, 2.5-3 mm; adaxially shiny, coherent to gynobase along 1/2 rib; disc narrow, sparsely granulose, margin thickened, forming a riblike wing; wing involute, usually covering apex of disc, with 4 or 5 marginal glochids along each side; glochids widened at base but not contiguous, basal pair 1.5-2 mm, gradually reduced toward apex of nutlet, smooth. Fl. and fr. May-Jun.

* Deserts. Gansu (W Hexi Corridor), Nei Mongol (Alxa Youqi).

Lappula deserticola là loài thực vật có hoa trong họ Mồ hôi. Loài này được Ching J. Wang mô tả khoa học đầu tiên năm 1981.

沙生鹤虱（学名：Lappula deserticola）为紫草科鹤虱属的植物，是中国的特有植物。分布于中国大陆的内蒙古、甘肃等地，常生长在荒漠地带的石戈壁或沙地，目前尚未由人工引种栽培。