<![CDATA[Image RSS Feed for Image Collection 74314 - Poa trivialis for Invasive Species Most Unwanted - Selected Images only]]> http://www.ipmimages.org/collections/viewcollection.cfm?id=74314 Roughstalk bluegrass (Poa trivialis) L.Origin
Native to Europe.

Appearance
Poa trivalis is a perennial cool-season grass that grows in disturbed and turf areas. Roughstalk bluegrass is a less desirable tuft grass due to an intolerance for heat, drought, and traffic.

Foliage
Leaf-blades are boat-shaped and flat with rough edges near the tip. There are two distinct and clear lines on each side of the midrib.

Flowers
The roughstalk bluegrass inflorescence is an open branching panicle. Panicles are lance to egg-shaped in form and have a spread 3.2″ (8 cm) to 10″ (25 cm). Blooming occurs between February and March.

Fruit
P. trivialis flowers form seedheads after blooming with flattened spikelets with 2-3 seeds each. Reproduction takes place by aboveground stolons and seeds.

Ecological Threat
P. trivialis prefers disturbed moist areas and is generally considered a weed.

http://ipm.ucanr.edu/PMG/WEEDS/roughstalk_bluegrass.html
http://turfid.ncsu.edu/csPagedPdField.aspx?PlantID=POATR]]>
Fri, 29 Mar 2024 07:29:25 -0400 Fri, 29 Mar 2024 07:29:25 -0400 http://Images.bugwood.org/ <![CDATA[roughstalk bluegrass Poa trivialis]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5386254 roughstalk bluegrass Poa trivialis]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5386254