Setaria dielsii, commonly known as Diels' Pigeon Grass, is a species of grass

Grass

Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...

 native to Australia.

Description

It is an annual grass that grows in tufts from 20 to 130 centimetres high. It has green flowers that occur in an open panicle

Panicle

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....

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Taxonomy

This species was first published by Rudolf Albert Wolfgang Herrmann in 1910. Its only synonym is Setaria buchananii, published by Albert Spear Hitchcock in 1927.