Biology:Aristida purpurascens

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Short description: Species of grass

Aristida purpurascens
Aristida purpurascens.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Aristida
Species:
A. purpurascens
Binomial name
Aristida purpurascens
Poir.

Aristida purpurascens is a species of grass known by the common name arrowfeather threeawn. It is native to eastern North America. One of the three varieties has a distribution extending south into Honduras.[1]

Description

This perennial bunchgrass produces stems up to 100 centimeters tall. It lacks rhizomes. The leaf blades are hairless, pale green, and up to 25 centimeters in length. They may become curly with age.[2] The panicle-shaped inflorescence has branches appressed to the stem, making it narrow. The awns may be up to 2.5 centimeters in length.[1]

This plant may be grazed when young but as it ages it becomes low in quality and even dangerous for livestock because of the sharp spikelets.[2]

References

  1. 1.0 1.1 Aristida purpurascens. Grass Manual Treatment.
  2. 2.0 2.1 Aristida purpurascens. USDA NRCS Plant Fact Sheet.

External links

Wikidata ☰ Q515353 entry