Times length of spikelet ; lower floret usually staminate .

小穗的刚毛3-4次长度；更低的小花通常雄蕊花。

Flowers 5-merous , only staminate seen ; bracteoles scalelike .

开花5瓣，只是雄蕊花看见；小苞片鳞片状。

Disk intrastaminal . Ovary very rudimentary in staminate flowers .

花盘雄蕊内在雄花里的子房不发育。

Staminate and pistillate flowers in pendulous racemes , from leafless branchlets ; leaves 3-foliolate .

雄蕊花和雌花在下垂总状花序，从无叶的小枝；叶具3小叶。

Lower lemmas short and subulate , or longer and sometimes staminate , often pubescent , not wrinkled or hooked .

下部外稃短和钻形，或更长和有时雄蕊花，通常短柔毛，不起皱或具钩。