| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Echinochloa colonum | Jungle-rice | Fields, ditches, disturbed wet areas. | Native of the Old World tropics. |  |
| Poaceae | Echinochloa crusgalli var. crusgalli | Barnyard-grass | Disturbed areas. | Native of Eurasia. |  |
| Poaceae | Echinochloa cruspavonis var. cruspavonis | Disturbed areas. | |||
| Poaceae | Echinochloa cruspavonis var. macera | ||||
| Poaceae | Echinochloa esculenta | Japanese Millet | Cultivated for grain, fodder, and birdseed, rarely persistent; of garden origin from E. crusgalli, and arguably better regarded as a cultivated form. |  | |
| Poaceae | Echinochloa frumentacea | Japanese Millet, Billion-dollar Grass, White Panic, Siberian Millet | Disturbed areas. | Native of Asia. |  |
| Poaceae | Echinochloa muricata var. microstachya | Rough Barnyard-grass | Alluvial swamps, river shores and bars, depression ponds, interdune swales, low fields, beaver impoundments, manmade impoundments, other moist to wet disturbed habitats. | NL west to BC, south to FL, TX, CA, Mexico, Central America, and South America. |  |
| Poaceae | Echinochloa muricata var. muricata | Rough Barnyard-grass | Interdune wetlands, various other wet to damp habitats. | Widespread in North America. |  |
| Poaceae | Echinochloa paludigena | Florida Barnyard-grass | Swamps, riverbanks, and wet disturbed habitats. | Endemic to peninsular FL. | |
| Poaceae | Echinochloa polystachya var. polystachya | Aleman Grass, Creeping River Grass | Marshes, wet disturbed areas. | Sw. LA and TX south through Mexico to South America; West Indies; s. FL (where of uncertain nativity). | |
| Poaceae | Echinochloa walteri | Swamp Barnyard-grass | Marshes of many kinds. | MA south to FL, west to TX on the outer Coastal Plain; also inland from OH west to WI, south to w. WV, MO, and AR; Mexico to Central America; West Indies. |  |
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