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American bellflower (Campanulastrum americanum) is a tall bellflower that grows mainly in the Great Plains and eastern coast of the United States. Its flowers are light blue to violet and usually form in elongated clusters. It is an unusual bellflower in that its flowers are usually flat and not bell-shaped. It has a varying life-history with seeds germinating in the fall producing annual plants and spring-germinating seeds producing biannual plants. It is generally insect-pollinated, and does not usually self-pollinate.[1]
[edit] References
- ^ Galloway, L. F.; J. R. Etterson (2005). "Population differentiation and hybrid success in Campanula americana: geography and genome size". Journal of Evolutionary Biology 18: 81-89. Retrieved on 20 November 2006.
