Vegetative key to the families
Vegetative Key Vegetative key to the families
GRASSES. Herbs. Leaf bases modified to form an open sheath which encloses the stem; leaf blade with parallel venation and abruptly distinct from the sheath; LIGULE usually present at the top of the sheath (Fig 24) Poaceae
Spikelets unisexual, male and female markedly different and in different inflorescences; plants monoecious or dioecious
Female flowers arranged in a globular head 20–30 cm diam. Plants dioecious. Stoloniferous perennials on coastal sand dunes.
Spikelets bisexual or, if unisexual, then male and female very similar and in the same inflorescence
Rhachis flattened, corky; the spikelets sunken in the rhachis Stenotaphrum