ocrea

基本解释

Cilia of ocrea 0.5-5 mm; achenes biconvex, rarely trigonous.
托叶鞘的缘毛0.;5-5毫米；瘦果两面凸，很少三棱。(54
Leaves opposite;adaxial surface of petiole often with a basal semicircular or semiamplexicaul ocrea.
叶对生有一基本的半圆或者半抱茎托叶鞘的叶柄通常的正面。
Inflorescence spicate, capitate, or paniculate; ocrea neither 2-cleft nor lacerate; petiole not articulate; filaments not dilated at base.
穗状，头状的花序，或圆锥状；托叶鞘不两2半裂也不撕裂状；叶柄无节；花丝而不是膨大的在基部。(17
Leaves hastate, both surfaces sparsely bristly, sometimes rarely stellate hairy; wings of ocrea with entire or crenate margin.
戟形的叶，两面稀疏具刚毛，有时很少星状毛；托叶鞘具全缘的或具圆齿边缘的翅。(23
ocrea fugacious, brown, thinly membranous.
托叶鞘先落，棕色色的，薄膜质。