14 terms

Terms	Definitions
Stinkgrass	Annual, reproduces by seed, disagreeable odor
Foxtail Barley	Perennial, native, 2' tall, seeds have barbed awns
Barnyard Grass	Introduced annual, rough looking, 8"-4' stems
Green Foxtail	Introduced annual, 8"-2' tall, fuzzy green/yellow bristles
Crabgrass	Large and small, common lawn weed, annual introduced
Sandbur	Annual, mat forming, tire puncturing goat heads, introduced
Docks	Noxious weed, buckwheat family, paper sheaths, big lanceolate leaves, winged achines
Prostrate Knotweed	Buckwheat family, introduced annual, tough weed, common in lawns/driveways
Lambsquarter	Common annual, goosefooted shaped leaves
Kochia	Annual, single stemmed bushes 6' tall, tumbleweed
Russian Thistle	Introduced annual, branches woody when mature, plant breaks off at maturity (tumbleweed), sharp bracts
Prostrate Pigweed	Eastern native, annual, amaranth family, mat forming
Redroot Pigweed	Annual, big taproot, large bristly, upright
Purslane	Annual, from seeds or cuttings, mat forming, rubbery leaves (portulaca), yellow flowers

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com. Click to see the original works with their full license.

• "Foxtail Barley" image
• "Barnyard Grass" image
• "Green Foxtail" image
• "Sandbur" image
• "Prostrate Knotweed" image
• "Lambsquarter" image
• "Kochia" image
• "Russian Thistle" image
• "Redroot Pigweed" image
• "Purslane" image

This product uses the Flickr API but is not endorsed or certified by Flickr.