1.(使)关节脱离
1.to separate something at the joints, or come apart at the joints
1.Plants usually with long rhizomes; spikelets usually disarticulating below glumes; lemma usually without distinct callus at base.
植株通常具长根状茎；在颖片下面通常脱节的小穗；外稃通常没有清楚的结茧在基部。
2.Glumes obscurely keeled proximally, indistinctly so distally; spike rachis usually tough and not disarticulating.
不清楚如此上部，颖片不明显接近翻转；穗状花序轴通常坚韧而不脱节。
3.3 (2) Spikelets all sessile and similar in groups of 2 or 3 in regular, longitudinal rows; spike with rachis disarticulating.
和在许多2或3穿整齐，纵向排内相似的小穗全部无梗；穗状花序具轴脱节。
4.Spikelets large, wedge-shaped, laterally compressed, florets several, rachilla disarticulating above glumes and between florets;
大，楔形的小穗，侧面压扁，小花数个，高于颖片脱节和在小花之间的小穗轴；
5.rachilla internodes usually distinct and usually disarticulating with florets, falling separately;
用小花节间通常清楚和通常脱节的小穗轴，分别下降；
6.rachis tough, triquetrous or flattened, spikelets disarticulating from pedicels at maturity;
轴坚韧，三棱或者被使，成熟时的从花梗脱节的小穗变平；
7.Spikelets with 1 floret, laterally compressed, disarticulating above glumes, rachilla shortly extended beyond floret, glabrous;
1小花的小穗具，侧面压扁，高于颖片，短延长的小穗轴脱节在以外，无毛；
8.Leaf blades linear or linear-lanceolate, often in rolled when dry, lower blades usually disarticulating from the sheaths;
经常，或线形披针形的叶片线形干燥时，更下部通常给装叶片从那里那些鞘；
9.Spikelets with one floret, elliptic to narrowly oblong, straighter on one side, strongly laterally compressed, disarticulating from pedicel;
小穗具一小花，椭圆形到狭长圆形，更在一侧直，强烈侧面压扁，从花梗脱节；
10.rachilla disarticulating below each floret, extension above floret(s) short or absent;
在每次小花，高于小花（南部）短的或无的扩展下面脱节的小穗轴；