|First Collector||D. Roth|
|Habitat||Navajo Natl. Mon. Inscription House ruin|
Cross-section round. Outline wavy. Culm center hollow. No visual difference between epidermis cells and sclerenchyma cells. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Vascular bundles integ
Outline with rips. Upper epidermis cells in several rows. Vascular bundles near the upper side of the leaf. Girders extending from the vascular bundle to the upper side of the leaf.