Water hemp : See under Hemp.

Example:


Taxonomy
Water Hemp, plant, flowers, spikes, pistillate flowers, bracts, capsules, sepals, seed, The seeds, Amaranthus rudis, annual plant, staminate flowers, Amaranthus spp, lanceolate, the leaves, Map, petals.

Defination from the web:
Water Hemp is dioecious, with individual plants producing either staminate flowers (male) or pistillate flowers (female) ... Range & Habitat: Water Hemp is a common plant that occurs in most areas of Illinois (see Distribution Map); it is somewhat less common in southern Illinois. ...