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Leafy spurge (Euphorbia esula)
https://pested.osu.edu/node/416
Leafy spurge (Euphorbia esula) Description: Colony forming perennial, usually 1'-2' in ... clustered bracts that form a cup-like structure. Fruit: 3-celled capsule that explode at maturity. Root: ...
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Johnsongrass (Sorgum halepense)
https://pested.osu.edu/node/402
(Poaceae) that grows in dense clumps or nearly solid stands. Johnsongrass form thickm aggressive rhyzomes ... spreads aggressively and can form dense colonies, displacing native vegetation and restricting tree ...
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Grapevines, uncultivated & in groups > 100 (Vitus spp.)
https://pested.osu.edu/node/400
deciduous vine that wraps itself around shrubs and trees, 12'-15' in height. Can form a dense leaf ... canopy that shades out other trees and shrubs. Thickets can also form over shrubs along the ground. Life ...
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Purple loosestrife (Lythrum salicaria)
https://pested.osu.edu/node/410
Flower: Purple, magenta-colored flower spikes produced from July to September. Fused sepals form a tube ... source of nutrition for wildlife. The highly invasive nature allows it to form dense, homogeneous stands ...
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Ohio Turfgrass Foundation Spring Tee Off
https://entomology.osu.edu/events/ohio-turfgrass-foundation-spring-tee
– BEST+ and Leadership. Presentations by entomology faculty Dr. Shaohui Wu, assistant professor, and ...
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Serrated tussock (Nassella trichotoma)
https://pested.osu.edu/node/423
Serrated tussock (Nassella trichotoma) Description: Perennial tussock-forming bunchgrass that can ...
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Shatter cane (Sorghum bicolor)
https://pested.osu.edu/node/412
forms adventitious roots from nodes or tillers. The problem is….aggressive, rapid growth. Competitive ...
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Poison hemlock (Conium maculatum)
https://pested.osu.edu/node/409
of lower leaves form a sheath that encircles the stem. Stem: Stems are stout, hollow, ridged and ...
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Japanese knotweed (Polygonum cuspidatum)
https://pested.osu.edu/node/401
Widespread rhizomes form dense undergrowth. Knotweed is a threat to riparian areas because small pieces of ...
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Canada Thistle (Cirsum arvense)
https://pested.osu.edu/node/397
2'-5' in height. Forms dense stands that choke out other vegitation. Life cycle: Perennial with creeping ...