Monographs Details: Abolboda macrostachya var. robustior Steyerm.
Authority: Carlquist, Sherwin. 1960. Anatomy of Guayana Xyridaceae: Abutboda, Orectanthe and Achtyplola. Mem. New York Bot. Gard. 10: 63-117.
Discussion:(fig. 62). The sclerenchyma on the adaxial surface is paralleled (and in places, fused with) a band which parallels the abaxial surface along the wings. The abaxial sclerenchyma extends farther into the keel than in the other varieties. The five bundles are present in the non-photosynthetic parenchyma which comprises the remainder of the sepal.