茵垫黄耆 yin dian huang qi

Plants 4-15 cm tall, densely caespitose, rather densely hairy; hairs subappressed to ascending, white, in inflorescence also black, 0.3-1 mm. Stems numerous, branched, ascending to erect, up to 5 cm, densely covered in lower parts with remnants of old leaves, hairy. Leaves 2-4 cm; stipules membranous, 5-7 mm, high connate behind stem, sometimes nearly to top, white ciliate; petiole 0.5-1.5 cm, like rachis loosely to more rarely rather densely white hairy; leaflets in 4-6 pairs, elliptic, 2-5 × 1-2.5 mm, abaxially rather densely and adaxially sparsely to loosely covered with subappressed white hairs up to 1 mm, margin mostly whitish, apex rounded or slightly retuse. Ra­cemes short, 3-5-flowered; peduncle 1-3 cm, rather densely white hairy, toward racemes also increasingly black hairy; bracts whitish membranous, 3-9 mm, white hairy. Calyx 6-9 mm, rather densely covered with appressed white and black hairs; teeth 3-6 mm. Petals purple to blue, wings and center of standard white; standard nearly orbicular, 13-16 × 9-11 mm, apex emarginate; wings 11-13 mm; keel 13-15.5 mm, limbs ca. 9 × 4 mm. Ovary with a stipe ca. 2 mm, white hairy. Legumes unknown.

● Qinghai.

Lower Taxa

• Astragalus mattam var. macroflorus Y. H. Wu
• Astragalus mattam var. mattam