|First Collector||W.C. Hodgson|
|Habitat||Grand Canyon Natl. Park, S. Bass trail|
Cross-section round. Outline smooth. Culm center filled. Recognizable epidermis cells. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Vascular bundles integrated in peripheral stabilisation str
Outline wavy. Upper epidermis cells in one row. Epdermis lignified. Vascular bundles near the lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.