水绒毛是疏水的微毛。
对具绵状毛的至少沿脉被微柔毛的叶片和叶柄；花药球状的或肾形。
Leaf blade and petioles puberulent to woolly at least along veins; anthers globose or reniform.
微灌管网毛管的设计，直接影响到工程费用和灌水质量。
The design of micro-irrigation laterals affects the project cost and irrigated quality.
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