Family: Grapevine, Vitaceae.
Habitat: Woods, abandoned sites.
Life cycle: Woody perennial.
Growth Habit: Vining growth habit.
Leaves: Large, rounded, lobed leaves.
Stem: Green and smooth in young plants, but later becomes brown and woody, twisting with peeling bark. Look for woody or green tendrils which can coil around other vegetation.
Fruit: Small grapes in clusters. If the vine has been abandoned for some time, there will probably be no fruit.
The problem is…. These stout vines can smother trees and forest vegetation. Grapevines are only considered a noxious weed if they are growing in groups of 100 or more and are not maintained for two consecutive years.
Currently there are 21 weeds on the Ohio Prohibited Noxious Weed List:
- Shattercane (Sorghum bicolor)
- Russian thistle (Salsola Kali var. tenuifolia)
- Johnsongrass (Sorghum halepense L. (Pers.))
- Wild parsnip (Pastinaca sativa)
- Wild carrot (Queen Anne’s lace) (Daucus carota L.)
- Oxeye daisy (Chrysanthermum leucanthemum var. pinnatifidum)
- Wild mustard (Brassica kaber var. pinnatifida)
- Grapevines: when growing in groups of one hundred or more and not pruned, sprayed,cultivated, or otherwise maintained for two consecutive years.
- Canada thistle (Cirsium arvense L. (Scop.))
- Poison hemlock (Conium maculatum)
- Cressleaf groundsel (Senecio glabellus)
- Musk thistle (Carduus nutans)
- Purple loosestrife (Lythrum salicaria)
- Mile-A-Minute Weed (Polygonum perfoliatum)
- Giant Hogweed (Heracleum mantegazzianum)
- Apple of Peru (Nicandra physalodes)
- Marestail (Conyza canadensis)
- Kochia (Bassia scoparia)
- Palmer amaranth (Amaranthus palmeri)
- Kudzu (Pueraria montana var. lobata)
- Japanese knotweed (Polygonum cuspidatum)
Each week, for the next 21 weeks, I will post information and pictures on how to identify these invasive and harmful plants.