The Morning Glory Species Calystegia sepium is a species of bindweed, and very common in Washington, United States. It is a vine that twines itself around other plants. The leaves are simple type and the flowers are white and trumpet-shaped. There are several subspecies of Calystegia sepium, they are listed below:
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| Calystegia sepium |
- Americana, North America
- Angulata, North America
- Appalachiana, Eastern North America
- Binghamiae, California
- Erratica, North America
- Limnophila, South America
- Roseata, Western Europe, Coasts, Pink
- Sepium, Europe, Asia
- Spectabilias, Siberia, Pinkish
Calystegia sepium is labeled as a noxious weed. It flowers late spring to the end of summer.
