Practice question

Capitulum inflorescence, often termed head, consists of condensed receptacle bearing numerous sessile florets surrounded by involucre of phyllaries bracts, functioning ecologically as single blossom attracting pollinators efficiently. Ray florets zygomorphic ligulate peripheral often sterile showy, disc florets actinomorphic central fertile producing seeds achene cypsela. Asteraceae demonstrates extreme synorganization, enabling efficient packaging hundreds flowers compact structure maximizing pollinator visits and seed output per inflorescence, adaptation for generalist pollination. Fabaceae papilionaceous raceme, Poaceae spikelet, Liliaceae solitary trimerous flowers differ; head remains diagnostic with pappus aiding anemochorical dispersal.