Collected by Burl Mostul (#53) in San Louis Potosi,
Mexico.
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This member of the Convovulaceae family was described by Lamarck in 1791.
It's found from Mexico to Paraguay. Give it a well- drained soil, some
water and sun, and it will give you fine blue flowers with white throat. The bulb will grow to
ten
centimetres in diameter, the vines to several meters.
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