Also known as: sea isle sedge, invasive sand sedge History & Introduction Originally from East Asia, Carex kobomugi was introduced accidentally to the U.S. in the early to mid-1900’s, possibly … Read more
History & Introduction In America, the genus Actinidia was extirpated from the continent nearly 80 million years ago due to shifting climates. It was reintroduced in 1877 when Colonel William … Read more
History & Introduction Ampelopsis glandulosa (synonym Ampelopsis brevipedunculata), commonly known as porcelain-berry, is a deciduous flowering plant species in the grape family (Vitaceae). It is a woody perennial climbing vine, native … Read more
History & Introduction Dioscorea polystachya or cinnamon vine is a species of flowering plant in the yam family. It is a perennial climbing vine, native to East Asia, where it … Read more
History & Introduction Arundo donax is a very tall, perennial grass that forms dense stands on disturbed sites, sand dunes, riparian areas and wetlands. Arundo is native to eastern Asia … Read more
History & Introduction Slender leafy spurge is a species of spurge native to Europe and Asia but is considered invasive in the United States. The plant was introduced in several … Read more
History and Introduction L. peploides is an emergent, aquatic perennial species that is native to South and Central America, parts of North America, and likely, Australia. L. peploides was introduced … Read more
History & Introduction Berberis julianae, commonly known as wintergreen barberry or Juliana’s barberry, is native to Central China. It was introduced into cultivation in the United Kingdom in 1900, and … Read more
History & Introduction Introduced from its native Korea, Japan and China in the 1860’s, Photinia villosa has been a popular ornamental shrub for over a century. It is now naturalized … Read more
In late November through early December, as most insects and plants head into a period of dormancy, the aptly named winter moth (Operophtera brumata) awakens from the soil. Native to Northern and Central Europe, they have been accidentally introduced several times to eastern North America since the 1930’s, where their larvae have been found defoliating our deciduous trees, preferentially oaks, maples and cherries.