大叶螺序草 da ye luo xu cao

Herbs, to 0.5 m tall, apparently perennial; stems ascending, ?villous. Petiole 1-3 cm, pubescent; leaf blade drying thinly papery, elliptic or elliptic-oblong, 10-21 × 3-6.5 cm, adaxially sparsely pilose to subglabrous, abaxially pubescent along veins, base obtuse then decurrent, apex acuminate or subcaudate; secondary veins 15-19 pairs; stipules subulate, caudate. Inflorescences paniculate, to 20 cm, ?villous; axes numerous, 1-2 cm, scorpioid; bracts minute. Flowers shorter than 5 mm. Capsules subglobose, ca. 2 mm in diam., valves 4.

Wet places in forests. S and SW Yunnan [NE India].