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Vermont Invasives

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Terrestrial Plants

Comparison of Project Strategies

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A comparison of project strategies

Alternatives to Common Invasive Plants and Characteristics of Select Alternatives

  • Read more about Alternatives to Common Invasive Plants and Characteristics of Select Alternatives

Alternatives to Common Invasive Plants and Characteristics of Select Alternatives

Choose Native Plants

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The benefits of planting native plants

Native Perennials and Shrubs for Vermont gardens

  • Read more about Native Perennials and Shrubs for Vermont gardens

A list of native perennials and shrubs for Vermont

Impacts of Invasive Plants

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Learn about the impacts of non-native invasive plants. 

Wild parsnip

Pastinaca sativa

  • Read more about Wild parsnip
  • Wild parsnip: hundreds of yellow flowers develop. Flowers are arranged in an umbel.
  • Wild parsnip: leaves are alternate, compound and branched with jagged teeth. Leaflets are yellowish-green, shiny, oblong, coarsely-toothed, and diamond-shaped.
  • Wild parsnip: infestation.
  • Look-alike: American cow parsnip (native to North America) is large, but has flat-topped flower clusters.
  • Look-alike: golden Alexander (Zizia aurea) flowers are loosely and unevenly clustered. Leaves are overall smooth with fine serrations.

False spiraea

Sorbaria sorbifolia

  • Read more about False spiraea
  • False spiraea: leaf blade is compound, made up of two or more discrete leaflets, there is one leaf per node along the stem, the edge of the leaf blade has teeth.
  • False spiraea: infestation.
  • False spiraea: small white flowers born on 4 to 10-inch panicle.
  • Look-alike: staghorn sumac (Rhus hirta).
  • Look-alike: staghorn sumac (Rhus hirta), flowers are greenish and the fruits are bright red.

Black Locust

Robinia pseudoacacia

  • Read more about Black Locust
  • Black locust: clusters of sweetly perfumed pure white pea flowers in spring.
  • Black locust: clusters of sweetly perfumed pure white pea flowers in spring.
  • Black locust: leaves are pinnately compound, with small oval leaflets.
  • Black locust: leaves are pinnately compound, with small oval leaflets.
  • Black locust: seed, bean-like pod.
  • Black locust: bark and thorns.
  • Black locust: bark of black locust is light brown, rough, and becomes very furrowed with age.
  • Black locust: tree form.
  • Look-alike: honey locust (also non-native to the Northeast) has three-pointed thorns.

Barberry, Common

Berberis vulgaris

  • Read more about Barberry, Common
  • Common barberry: oval leaves, with toothed edges, flowers are pale yellow and appear in droopy clusters.
  • Common barberry: oval leaves, with toothed edges, flowers are pale yellow and appear in droopy clusters.
  • Common barberry: oval leaves, with toothed edges, flowers are pale yellow and appear in droopy clusters.
  • Common barberry: oval leaves, with toothed edges, flowers are pale yellow and appear in droopy clusters.
  • Common barberry: oval leaves, with toothed edges.
  • Common barberry: berries are red ellipsoids which are less than 0.3 in. in length and contain 1-3 small black seeds.
  • Common barberry: berries are red ellipsoids which are less than 0.3 in. in length and contain 1-3 small black seeds.
  • Common barberry: spines are three-pronged.
  • Common barberry: spines are three-pronged.
  • Common barberry: infestation.
  • Common barberry: infestation.
  • Look-alike: invasive Japanese barberry has a single thorn, leaf edges are smooth, and flowers occur individually or in small clusters.

White poplar

Populus alba

  • Read more about White poplar
  • White poplar: bark on young trees is smooth and greenish white becoming gray and wrinkled, as trees age.
  • White poplar:infestation.
  • White poplar: leaves resemble maple leaves, but the topside of leaves are shiny, dark green while the underside is bright white and hairy.
  • White poplar: fruit are small, hairy seed pods that are spread by wind.
  • Look-alike: bigtooth aspen (Populus grandidentata) has leaves that are large, coarse and have blunt teeth are all along the edges.
  • Look-alike: bigtooth aspen (Populus grandidentata) bark is smooth and thin, green or yellowish gray on younger branches and the upper trunk. Older bark at the base of trunk becomes thick and dark gray/brown with coarse ridges and deep furrows.

Pagination

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Site by Tamarack Media Cooperative. Cover image by Brian Leedy.