Weed
nutgrass
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
Three-sided obovateObovate:
Inverted egg shaped with apical end the broadest.
Brown
Smooth with underlying honeycomb dots
Strong basalBasal:
The base of the fruit or seed opposite the apical end.
scar and an occasional remnant of the style
AchenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. are strongly three-sided; occasionally associated with a bract. The smooth surface is covered with underlying dots arranged in a honeycomb pattern.
State Noxious Weed: Alabama, Arizona, Arkansas, California, Florida, Georgia (tuber and seed), Louisiana, Mississippi, New Mexico, North Carolina, Oklahoma, Rhode Island, South Carolina, Tennessee, Texas
Included
For more information, see ISMA fact sheet, Cyperus spp.
Cyperaceae
Cyperus rotundus L.
