This spiny shrub invades natural areas, especially in northeastern N. America, spread by fruit-eating birds. In some places it forms an i...Read Morempenetrable spiny understory in our native forests, reducing species diversity.
Naturalized in 34 states, mostly in the northeast. Sale, purchase, transportation, and planting are prohibited in three states.
The straight or mother species here that has green leaves is hardly sold anymore in nurseries. It is pretty with fine-textured foliage an...Read Mored gets good red fall color. People like the numerous red or yellow foliage cultivars. This species is nasty and painful to work around with all its sharp thorns. When plants get older they become awfully twiggy, full of dead wood. It escaped cultivation in the US long ago and is an invasive East Asian plant in woods and fields in the Midwest and East. It has been reported that it helps harbor deer ticks in the forest.
This spiny shrub invades natural areas, especially in northeastern N. America, spread by fruit-eating birds. In some places it forms an i...Read More
The straight or mother species here that has green leaves is hardly sold anymore in nurseries. It is pretty with fine-textured foliage an...Read More