(Torr. & Gray) Nutt. ex BL Robins. & Fern.
Wisteria macrostachya (Kentucky Wisteria) is a woody deciduous vine found in the southeastern United States, including its namesake state of Kentucky. It is very similar to the American Wisteria (Wisteria frutescens) with some references treating it as part of that species.
Kentucky Wisteria bears unscented bluish-purple flowers in racemes 15–30 cm long, a generally average length for the Wisteria family. It produces these flowers after growing only two to three years, making it the quickest wisteria to bloom. Otherwise, its soil and light requirements, behavior, and characteristics are identical to the American Wisteria.
- Jarantoski, K.S. (January 1988). "Wisteria frutescens and W. macrostachya". The Public garden: journal of the American Association of Botanical Gardens and Arboreta 3 (1): 33.
- Thompson, Ralph L. (September 1980). "Woody Vegetation and Floristic Affinities of Mingo Wilderness Area, a Northern Terminus of Southern Floodplain Forest, Missouri". Castanea 45 (3): 194–212. Retrieved 6 August 2012.
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