Native invasive plants
Can
a "native" species be called an invader? Whether an invader is native
or not is irrelevant. If it spreads into an area, forms monocultures, and
results in a marked decrease in diversity, it is undesirable and should be
controlled.
Here
are a few native invaders that under some conditions meet these criteria.
Latin name
|
Common name
|
Clonal?
|
Comments
|
Shrubs and trees
|
|||
Celastrus scandens
|
American
bittersweet
|
No
|
Twining;
forms berries
|
Cornus racemosa
|
Gray
dogwood
|
Yes
|
Prairies
and open savannas
|
Cornus stolonifera
|
Red-osier
dogwood
|
Yes
|
Wet areas
|
Corylus Americana
|
Hazel
|
Under
some conditions
|
Definitely
invasive in Minnesota; probably in Wisconsin
|
Juniperus communis
|
Common
juniper
|
No
|
Fire-sensitive;
forms berries
|
Populus grandidentata
|
Big-toothed
aspen
|
Yes
|
Root
suckers
|
Populus tremuloides
|
Quacking
aspen
|
Yes
|
Root
suckers
|
Rhus glabra
|
Smooth
sumac
|
Yes
|
Probably
allelopathic; prefers sunny areas; root suckers; can dominate a site
|
Rhus hirta
|
Staghorn
sumac
|
Yes
|
Probably
allelopathic; prefers sunny areas; root suckers; can dominate a site
|
Rubus allegheniensis
|
Blackberry
|
Yes
|
Forms
patches
|
Rubus flagellaris
|
Dewberry
|
Yes
|
Spreads
close to ground
|
Rubus idaeus
|
Red
raspberry
|
Yes
|
Forms
very dense clones;
|
Rubus occidentalis
|
Black-cap,
black raspberry
|
Yes
|
Tip roots
|
Salix exigua
|
Sandbar
willow
|
Yes
|
Wetlands;
root suckers; forms very dense clones; can dominate a site
|
Salix humilis
|
Prairie
willow
|
No
|
Only
rarely invasive
|
Vitis spp.
|
Grape
|
No
|
Climbs
|
Zanthoxylum americanum
|
Prickly
ash
|
Yes
|
Prairies
and open savannas
|
Herbaceous plants
|
|||
Arnoglossum atriplicifolia
|
Pale
Indian plantain
|
Yes
|
Root
suckers
|
Helianthus divaricatus
|
Woodland
sunflower
|
Yes
|
|
H. grosseserratus
|
Sawtooth
sunflower
|
Yes
|
|
H. tuberosa
|
Jersualem
artichoke
|
Yes
|
|
Solidago canadense
|
Canada
goldenrod
|
Yes
|
Woodland
Sunflower can easily destroy the habitat for dozens of native species. So can
sumac.
Here is a recent review with many examples: Carey, Michael P. et al. 2012. Native invaders--challenges for science, management, policy, and society. Frontiers in Ecology and the Environment. Volume 10(7): 373-381, doi:10.1890/11060 (published online 15 June 2012).
Here is a recent review with many examples: Carey, Michael P. et al. 2012. Native invaders--challenges for science, management, policy, and society. Frontiers in Ecology and the Environment. Volume 10(7): 373-381, doi:10.1890/11060 (published online 15 June 2012).
1 Comments:
Diversity above ground does not necessarily equal diversity below ground. Our disturbances favor the more aggressive species.
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