The inflorescence of the grasses is a grass spikelet[5]. Each spikelet is made up of two glumes and 1 or more florets. The flowers are neither showy nor aromatic. The flower’s reproductive parts are enclosed by the modified leaves (glumes, lemma, and palea). The ovary has 1-3 chambers. Each chamber has only one pendulous ovule. All grasses have 1-3 stamens, except Flagellariacea. This family has members with 6 stamens.
The cattail families (Sparganiaceae and Typhaceae) have a minute and unisexual flowers. Both are petalless. Flowers are on a compressed cylindrical spike. The female flowers are located below the male flowers.
The flowers of the sedges (Cyperaceae) and rushes (Juncaceae) families are usually small and green. The members have bisexual flowers, usually crowded into the terminal or lateral clusters. Eriocaulaceae and Xyridaceae also possess small flowers. However, these families have flowers with showy clusters. The flowers can be male or female.
The pineapple family, Bromeliaceae[6], has colorful flowers and foliage. Members are characterized by having flowers with three parts and colorful bracts. The flowers may exist at the midpoint of the rosette or can be an elongated spike, a panicle, or a raceme. The florets are made up of 3 petals and 3 sepals. These petals and sepals surround the stamens (6) and stigma (1). Most fruits are fleshy.
Researchers conducted a study on the Poales pollination in the Neotropics[7]. Wind pollination primarily occurs in Poaceae, Cyperaceae, and Jundacaea. However, insect pollination also happens to some degree. Anemophily occurs in Thurniaceae and Typhaceae. It is the process that transports pollen from one plant to another via air currents. The bees mostly pollinate the flowers of Xyridaceae. Diverse small insects visit the small-quantity nectar secreted by the flowers of Eriocaulaceae and pollinate them. Anemophily is also happening in Bromeliaceae. Although, pollination from diverse animal groups (mainly hummingbirds) also occurs.
