adj. threadlike ; filar ; filiform ; wirelike ; filamentous
全部相似的叶，通常沉水的，具丝状的裂片。
Leaves all similar, usually submerged, with filiform segments.
后枕骨非常突出，头顶的“头发”是丝状的、长长的毛发。
The occipital bone is very prominent. The head is a topknot of long silky hair.
后枕骨非常突出，头顶的“头发”是丝状的、长长的毛发。
The occipital bone is very prominent. The head is surmounted by a topknot of long silky hair.
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