科名：禾本科 Gramineae

属名：鸭嘴草属 Ischaemum

《Flora of China》 Vol. 22 (2006)
Ischaemum aristatum var. glaucum  (Honda) T. Koyama
鸭嘴草   ya zui cao
Ischaemum crassipes var. glaucum Honda, J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 3: 355. 1930; Andropogon crassipes Steudel; Ischaemum aristatum subsp. glaucum (Honda) T. Koyama; I. aristatum var. momiyamae (Honda) Hsu; I. cras-sipes (Steudel) Thellung; I. crassipes var. hainanense Keng; I. crassipes var. momiyamae Honda; I. sieboldii Miquel.
Rachis internodes and pedicels scabrid or shortly ciliate on outer angle, inner angles glabrous or shortly ciliate. Sessile spikelet oblanceolate, narrowly to broadly winged, mucronate or shortly awned; awn included, 0.1–0.3 cm, straight. 2n = 56.
Sandy places, usually near the sea. S Anhui, Hebei, Jiangsu, Liaoning, Shandong, Zhejiang [Japan, Korea, Vietnam].