|First Collector||E. Nelson|
|Habitat||Black Mts. Kingman|
Cross-section round. Outline smooth. Culm center filled. Recognizable epidermis cells. Peripheral sclerenchymatic stabilisation structure (girders) conic. Vascular bundles integrated in peripheral stabilisation structure (girders). Sclerenchymatic sheath
Outline wavy. Upper epidermis cells in one row. Epdermis lignified. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.