|Habitat||Barbershop Canyon, Quail Spring|
Cross-section round. Outline with rips. Culm center hollow. Recognizable epidermis cells. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Vascular bundles integrated in peripheral stabilisation
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.