箭叶水苏 jian ye shui su

Phlomis sagittata Regel, Trudy Imp. S.-Peterburgsk. Bot. Sada 6: 373. 1880; Metastachys sagittata (Regel) Knorring.

Stems 40-70 cm, brown-purple or brown, with small, branched hairs denser below nodes. Petiole of basal leaves 6-8 cm, base dilated, persistent, petiole of stem leaves 2-6 cm, clasping; basal leaf blade 6-8 × 5.5-7.5 cm, adaxially sparsely hispid, abaxially gray, with appressed stellate hairs with unequal arms; stem leaves in 1 or 2 pairs, upper pair shorter than verticillasters. Spikes with 4 remote and 2 or 3 close verticillasters; floral leaves sessile or subsessile; bracteoles subulate, 6-9 mm, partly adnate to flowers, stellate, hispid. Calyx greenish purple, with branched and sparse glandular hairs. Corolla 1.5-2 cm, glabrous, throat and limb with branched hairs (specimens not seen).

Hillside meadows. Xinjiang [Kyrgyzstan].