The correct option is D Sessile, bracteate, bracteolate, incomplete, uni or bisexual, perianth modified into lodicules, stamens three, syncarpous, superior ovary and feathery stigma
The members of Poaceae family have the following characteristics - flower is without stalk (sessile), spikelet inflorescence, uni or bisexual, presence of lodicules, the androecium has 3 stamens, anthers are versatile, gynoecium is tricarpellary syncarpous, unilocular ovary, feathery stigma, fruit is caryopsis with the embryo situated towards a side at the base, presence of coleoptile and coleorhiza.
Thus, the correct answer is option C.