What is Amsonia

Amsonia（scientific name: Amsonia elliptica) is a non-cold-resistant and non-heat-tolerant perennial of the family apocynaceae native to North America and East Asia.Stems are erect, stretch cymes from the stem in early summer, the light blue star-shaped florets give the number. The autumn leaves fall and Japanese-style atmosphere. This depends on which resembles the character "Ding" saw the flower names flower from the side. Was designated endangered species from swamp habitats are decreasing.The whole plant is toxic because apocynaceae.　

General name:Amsonia, scientific name: Amsonia elliptica, also known as: Bluestar, origin: Korea, Korean peninsula of Habitat distribution: North America, East Asia, East Asia in China, Japan, North America, China, Japan Hokkaido-Kyushu, living environments: wetlands, living type: perennial (perennial), plant height: 30-70 cm, leaf lenght: 30-50 cm, leaf width: 8 cm, leaf shape: lanceolate-oval, phyllotaxis: alternate, leaf color: green (spring/summer) → flowers-autumn (fall): cymes, flower diameter:1.5cm, flower color: light blue, Corolla: open flat, flowering: April-June, calyx: 5 deep fissure, fruit types: bag of fruit shape: elongated cylindrical fruit length: 5 cm, use: garden planted, cut flowers, stated: the whole plant is poisonous plants, endangered species.