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Extension > Agriculture > Crops > Weed management > Annual grass and perennial weed seedling identification

Annual grass and perennial weed seedling identification

Gerald R. Miller, former Extension Agronomist
Oliver E. Strand, former Extension Agronomist

Descriptions of annual grass and perennial weed seedlings

Click on highlighted text or photo for larger image. Photos are from the Strand Memorial Herbarium, unless otherwise noted.

Annual grasses

barnyardgrass

Barnyardgrass

Barnyardgrass

Leaf sheath

Leaf blade

Ligule

large crabgrass

Crabgrass, large

Crabgrass, large

Leaf sheath

Leaf blade

Ligule

Giant foxtail

Giant foxtail

Foxtail, giant

Leaf sheath

Leaf blade

Ligule

Green foxtail

Green foxtail

Foxtail, green

Leaf sheath

Leaf blade

Ligule

Yellow foxtail

Yellow foxtail

Foxtail, yellow

Leaf sheath

Leaf blade

Ligule

Wild oat

Wild oat

Oat, wild

Leaf sheath

Leaf blade

Ligule

Fall panicum

Fall panicum
Source: Joseph M. DiTomaso, University of
California-Davis, Bugwood.org

Panicum, fall

Leaf sheath

Leaf blade

Ligule

Wild proso millet

Wild proso millet

Proso millet, wild

Leaf sheath

Leaf blade

Ligule

Perennial weed seedlings

Jerusalem artichoke

Jerusalem artichoke

Artichoke, Jerusalem

Cotelydons

Leaves

Plant characteristics

Field bindweed

Field bindweed

Bindweed, field

Cotelydons

Leaves

Plant characteristics

Hedge bindweed

Hedge bindweed

Bindweed, hedge

Cotelydons

Leaves

Plant characteristics

Yellow nutsedge

Yellow nutsedge

Nutsedge, yellow

Leaf sheath

Ligule

Quackgrass

Quackgrass
Source: Ohio State Weed Lab Archives, The Ohio State University,
Bugwood.org

Quackgrass

Leaf sheath

Leaf blade

Ligule

Perennial sowthistle

Perennial sowthistle

Sowthistle, perennial

Cotelydons

Leaves

Plant characteristics

Canada thistle

Canada thistle

Thistle, Canada

Cotelydons

Leaves

Plant characteristics


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