Rhynchospora sp.

Species category

Weed

Common name

beaksedge, rhynchospora

Diagnostic characters

Planting unit

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.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.
with a long beak

Size

  • Length 6 mm
  • Width 2.5 mm
  • Thickness 1 mm

Color

Black

Texture

Smooth

Other structures

Long wide beak from apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. Long, thin bristles from base.

Identification notes

Long beak could have the function of a style.

Noxious weed seed categories

State Noxious Weed: Louisiana 

AOSA examination list

Not included

Nomenclature

Family

Cyperaceae

Valid name

Rhynchospora Vahl

Synonyms

Raymondiella B. Boivin, nom. inval.

 Rhynchospora  sp. Achenes with a long, wide beak originating from the apex.
Rhynchospora sp. Achenes with a long, wide beak originating from the apex.