Wanted Dead: Alligatorweed

Scientific Name: Alternanthera philoxeroides

A native of South America, alligatorweed was inadvertently introduced to Southeastern U.S. in the late 1800s. Its white flowers are clover-like and bloom a summer.

Most commonly found floating in mats along the water’s edge, alligatorweed also grows immersed and even terrestrially. Its opposing leaves are lance shaped, 1-2 inches long, and have a distinct midrib. When it grows aquatically, its stems grow hollow for buoyancy.

Damage — Alligatorweed infestations cause several problems. Flooding and erosion; the floating mats can get caught up around dams and other structures, such as fallen trees and bottlenecks. It has been known to  grow across waterways to become a hazard to navigation. Infestations dampen aesthetic value, inhibit recreational activities such as boating, swimming, and fishing, and harbor mosquitoes.

Spread – So far, alligatorweed has been spotted in 12 states and Puerto Rico, spreading mainly by  fragmentation. Boaters should beware when moving their trailers and watercraft from waters with alligatorweed present to insure they do not inadvertently spread this invasive.

Control – In North Carolina, herbicides are the primary method of control. It’s tough to manage – even annual herbicide sprayings can fail to control it. Two varieties of insects have been employed as biological control agents — the flea beetle and a stem borer moth. Neither are particularly effective in WNC.


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Wanted Dead: Alligatorweed

Scientific Name: Alternanthera philoxeroides A native of South America, alligatorweed was inadvertently introduced to Southeastern U.S. in the late 1800s. Its white flowers are clover-like and bloom a summer. Most commonly found floating in mats along the water’s edge, alligatorweed also grows immersed and even terrestrially. Its opposing leaves are lance shaped, 1-2 inches long, […]

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conserve

Storm Drain Marking Project

  Do you know where the water that flows into a storm drain goes? This water does not go to a treatment plant but flows directly into our streams, lakes, and rivers. Many people poor oil, paint, yard waste, and other pollutants into the storm drain because they think the water will be treated before […]

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experience

Kiosks help us tell the story

RiverLink and MountainTrue have developed informational kiosks for each river access point along the French Broad River Paddle Trail with a grant from the North Carolina Recreational Trails Program. Each kiosk focuses on historical and natural features of the river, as well as paddle trail information including maps and boater resources. These kiosks aid users and […]

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Upcoming Events

Upcoming Events

May
18
Thu
11:45 am RiverLink Bus Tour @ RiverFront Bus Tour
RiverLink Bus Tour @ RiverFront Bus Tour
May 18 @ 11:45 am – 2:30 pm
If you ever wondered about the Wilma Dykeman RiverWay development project – this is your opportunity to see and hear about the plans for the future. Available Seats: There is space for 12 participants on[...]
Jun
9
Fri
5:00 pm RiverMusic @ Salvage Station
RiverMusic @ Salvage Station
Jun 9 @ 5:00 pm – 10:00 pm
RiverMusic @ Salvage Station | Asheville | North Carolina | United States
RiverMusic 2017 kicks off with the first of our concerts at the Salvage Station, located at 468 Riverside Drive in the River Arts District. Watch this space to find out who our bands will be![...]
Jul
7
Fri
5:00 pm RiverMusic @ Salvage Station
RiverMusic @ Salvage Station
Jul 7 @ 5:00 pm – 10:00 pm
RiverMusic @ Salvage Station | Asheville | North Carolina | United States
RiverMusic 2017 rocks on with the second of our concerts at the Salvage Station, located at 468 Riverside Drive in the River Arts District. Watch this space to find out who our bands will be! We’ll[...]
Jul
20
Thu
11:45 am RiverLink Bus Tour @ RiverFront Bus Tour
RiverLink Bus Tour @ RiverFront Bus Tour
Jul 20 @ 11:45 am – 2:30 pm
If you ever wondered about the Wilma Dykeman RiverWay development project – this is your opportunity to see and hear about the plans for the future. Available Seats: There is space for 12 participants on[...]
Aug
26
Sat
12:00 pm RiverFest @ Salvage Station
RiverFest @ Salvage Station
Aug 26 @ 12:00 pm – 7:00 pm
RiverFest @ Salvage Station | Asheville | North Carolina | United States
RiverFest 2017 will, as always, be a blast! It all happens on Saturday, August 26 at the Salvage Station (map). The always entertaining Anything That Floats Parade will be back, as will local beer, live[...]

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