Chloris divaricata

Species category

Weed

Common name

spreading windmill grass

Diagnostic characters

Planting unit

Multiple floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.

Shape

Lanceolate

Size

  • Length: 4 mm
  • Width: 0.3 mm
  • Thickness: 0.3 mm

Color

Brown to black; yellow extreme apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
; white base.

Texture

Minutely rough

Lemma

Bifid apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
, long awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
, keeled, hairy callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.

Palea

Obscured by lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.

Other structures

Sterile floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
attached to the fertile floret rachillaRachilla:
The axis of a spikelet.
. CallusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
is sharp.

Identification notes

This unit might be called a double floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
, but the second floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
is reduced to a sterile lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
. Both fertile and sterile floretsFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
have well-developed awnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
. Measurements do not include the awnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Chloris divaricata R. Br.

Synonyms

Chloris cynodontioides Balansa
Chloris divaricata R. Br. var. cynodontioides (Balansa) Lazarides

 Chloris divaricata.  Florets with a white base.
Chloris divaricata. Florets with a white base.