|First Collector||R. Crawford|
|Habitat||Little Colorado River Gorge,|
Cross-section round. Outline wavy. Culm center filled. No visual difference between epidermis cells and sclerenchyma cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in one row. Small vascular bundles integrated in the sclerenchym
Outline smooth. Upper and lower epidermis cells of equal size and shape. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.