Page authors: Don Knoke, David Giblin
Panicum miliaceum

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.

Habitat: Abandoned fields, roadsides, waste ground.

Flowers: July-September

Origin: Introduced from Asia

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Wind


Annual, the culms up to 1 m. tall, covered with hairs 2-5 mm. long from little blisters.


Sheaths open; articulation below the glumes; ligules composed of straight hairs about 2 mm. long; blades 7-15 mm. broad.


Inflorescence a somewhat congested panicle 10-30 cm. long, the branches erect, scabrous; spikelets 2-flowered, about 4.5 mm. long; glumes strongly nerved, glabrous, acuminate, the first 2-3 mm. long, 7-nerved, the second 11-nerved, equal to the sterile first lemma, which is 9- to 11-nerved; palea of sterile flower membranous, bi-lobed, 1.5 mm. long; hardened, fertile upper lemma and palea enclosed by the second glume and sterile lemma.

Accepted Name:
Panicum miliaceum L.
Publication: Sp. Pl. 1: 58. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Panicum miliaceum in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Panicum miliaceum checklist entry

OregonFlora: Panicum miliaceum information

E-Flora BC: Panicum miliaceum atlas page

CalPhotos: Panicum miliaceum photos

15 photographs:
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