胡麻黄耆 hu ma huang qi

Plants with white hairs, near stipules and in inflorescence also black hairy. Stems 7-35 cm, ascending, sparsely covered with appressed hairs 0.3-1 mm. Leaves 2.5-5.5 cm; stipules whitish to greenish, 3-4 mm, ciliate or sparsely hairy; petiole 0.3-1 cm, like rachis slender, subappressed hairy; leaflets in 4-6 pairs, narrowly oblong to narrowly elliptic, 4-15 × 2-5.5 mm, abaxially somewhat densely appressed hairy, adaxially glabrous or sparsely appressed hairy, apex obtuse. Racemes 2-9-flow­ered; peduncle 2-6 cm, with subappressed to ascending hairs; bracts membranous, 2-3 mm, ciliate. Calyx campanulate, 5.5-7 mm, covered at base with white and black hairs up to 1 mm, toward teeth with more black and somewhat longer and more spreading hairs; teeth subulate, 3-4 mm. Petals violet; standard 5.5-7 × 2-2.5 mm, apex slightly retuse; wings 4.5-5.5 mm; keel 4-4.5 mm. Legumes erect, straight, narrowly oblong with rounded base, 1.2-1.5 cm, 3-4 mm high and wide, with a re­flexed beak 1-1.5 mm; valves covered with subappressed to ascending white hairs up to 1.3 mm.

Loessic and sandy soil, in steppes and semideserts, fields. Xin­jiang [Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan; SW Asia (Iran)].