Astragalus glabritubus Podlech & L.R.Xu

Plants 3-4 cm tall, acaulescent, very densely compactly caespitose, only white hairy. Leaves 1-2.5 cm; stipules 5-7 mm, adnate to petiole up to middle, at margins with spreading, basifixed cilia ca. 0.8 mm, otherwise glabrous; petiole 0.6-1.8 cm, like rachis slender, densely covered with medifixed, ap­pressed hairs 0.4-0.6 mm; leaflets in 1(or 2) pairs, narrowly obovate, 4-9 × 1.5-2.2 mm, mostly folded, both surfaces loosely to rather densely covered with medifixed, appressed hairs 0.5-0.8 mm. Racemes sessile, 2-or 3-flowered; bracts 8-12 mm, margins comblike ciliate with basifixed hairs. Calyx 8-10 mm, tube glabrous; teeth ca. 4 mm, at margins comblike cili­ate with basifixed hairs up to 0.8 mm. Petals white; standard narrowly obovate, ca. 20 × 5 mm, apex emarginate; wings ca. 15 mm; keel ca. 9 mm. Ovary shortly stipitate, subglobose, ap­pressed white hairy. Legumes unknown.