segment margin造句

The blossoms are the most variable in the Odontoglossum genus in terms of size, colour and degree of crimpling along the segment margins.
Characteristics include : Rhizomes short to long creeping; rhizomes with nonclathrate scales or uniserate hairs; blades 1-3 pinnate or more divided; veins usually free; sori marginal or submarginal; indusia open towards margin, sometimes attached at sides, or sori covered by the reflexed segment margin
It's difficult to find segment margin in a sentence. 用segment margin造句挺难的