Poaceae (Gramineae) is one of the largest families of Angiosperms, comprising about 800 genera and 10,000 species, with a cosmopolitan distribution...

Poaceae (Gramineae) is one of the largest families of Angiosperms, comprising about 800 genera and 10,000 species, with a cosmopolitan distribution (STEVENS, 2001). In Brazil, there are about 200 genera and 1,400 species (Flora do Brasil 2020). This family has great ecological importance, as it dominates open ecosystems, such as savannas. It also has great economic importance, being widely used in animal feed and in the production of cereals for human consumption, such as rice, wheat, and barley. About Poaceae, choose the correct alternative:


A capacity for vegetative propagation (cloning) through rhizomes is common in Poaceae.
The leaves of Poaceae are always simple and have parallel venation.
The inflorescence of Poaceae is always a spike, with flowers arranged in a spiral.
The fruit of Poaceae is always a capsule, containing several seeds.