UW Burke Herbarium species comparison

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Panicum virgatum

Panicum miliaceum

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

Sheaths open; articulation below the glumes;

ligules composed of straight hairs about 2 mm. long;

blades 7-15 mm. broad.
Flowers

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.

Panicum virgatum

Panicum miliaceum
Flowering time July-September July-September
Habitat Roadsides, fields, and other disturbed areas. Abandoned fields, roadsides, waste ground.
Distribution
Occurring east of the Cascades crest in Washington; occurring in scattered locations near Portland, OR and Boise, ID, otherwise east of the Rocky Mountains in central and eastern North America, where native.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Native Introduced from Asia
Conservation status Not of concern Not of concern
Sibling taxa
P. capillare, P. dichotomiflorum, P. miliaceum
P. capillare, P. dichotomiflorum
Subordinate taxa
P. miliaceum ssp. miliaceum, P. miliaceum ssp. ruderale
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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