consistently has pilose nodes, or in the Big Bend region of Texas with Cathestecum erectum, which has three spikelets per node and distinctly awned lemmas. None. None
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the contact zone between T. flexipes and T. erectum. F. W. Case and R. B. Case (1993) crossed typical T. erectum and T. flexipes to produce identical color
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corymbosum and approaches the minor segregate of the latter known as var. erectum. It is possible that the Gate Canyon wild buckwheat has an evolutionary
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Salvador and Honduras. The Arizonan plants were originally identified as C. erectum but, like many Mexican popu¬lations of C. brevifolium, they have 2n = 60
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