Digitaria velutina

Species category

Weed

Common name

velvet crabgrass

Diagnostic characters

Planting unit

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 1.7–2.6 mm
  • Width 0.6–1 mm
  • Thickness 0.5–0.8 mm

Color

Light brown floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
and light brown glumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.

Texture

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 glabrousGlabrous:
Lacking hairs or pubescence.
and finely striate. GlumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
are ribbed and pubescentPubescent:
Having hairs.
.

Lemma

GlabrousGlabrous:
Lacking hairs or pubescence.
and striate

Palea

GlabrousGlabrous:
Lacking hairs or pubescence.
and striate

Other structures

GlumesGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
are papery, and the outer glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
is two-thirds the length of the floretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.
.

Identification notes

Long pubescence is on the glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
margins and ribs.

Noxious weed seed categories

Federal

Learn more on ITP's Federal Noxious Weed Disseminules tool.

AOSA examination list

Not included

More information

For more information, see ISMA fact sheet, Digitaria spp.

Nomenclature

Family

Poaceae

Valid name

Digitaria velutina (Forssk.) P. Beauv.

Synonyms

Phalaris velutina Forssk.

 Digitaria velutina.  Florets with marginal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Florets with marginal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
 Digitaria velutina.  Florets with marginal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Florets with marginal ribs. Photo by Julia Scher, USDA-APHIS-PPQ.
 Digitaria velutina.  Florets are ribbed and have pubescence. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Florets are ribbed and have pubescence. Photo by Julia Scher, USDA-APHIS-PPQ.
 Digitaria velutina.  Florets with papery glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Florets with papery glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Light brown florets and light brown glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Light brown florets and light brown glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
 Digitaria velutina.  Light brown florets and light brown glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Digitaria velutina. Light brown florets and light brown glumes. Photo by Julia Scher, USDA-APHIS-PPQ.