History and Introduction Yellow garden loosestrife is native to Eurasia, and is considered rare in parts of Bulgaria. It was introduced to the United States through the horticulture trade as … Read more
History & Introduction Originally from eastern Asia, Sapphire berry (Symplocos paniculata) was introduced to the United States in 1875 as an ornamental shrub. Avid plant collector Thomas Hogg sent numerous … Read more
History & Introduction Water lettuce (Pistia stratiotes) is an invasive freshwater species known for its ability to create dense surface mats in aquatic ecosystems. This plant poses significant threats to … Read more
Introduction Holly osmanthus (Osmanthus heterophyllus), also known as false holly, olive holly, or olive tea holly, is native to East Asia, particularly China and Japan. The plant is cultivated for … 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 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 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 Orange candleflower (Arum italicum) is a herbaceous perennial, a member of the Araceae family, and a native of Asia, Europe, and North Africa. It has been introduced … Read more
Small carpet grass, arthraxon, jointhead grass, hairy jointgrass (Arthraxon hispidus)Family: PoaceaeLife Form: Annual grass Tier: 2 History & Introduction Arthraxon hispidus was first documented in the US in the 1870s and … Read more
Family: Brassicaceae Life form: Forb History & Introduction Native to West Asia through Southeastern Europe, perennial pepperweed (PPW) will grow nearly anywhere within its native range including fresh, brackish, and … Read more