|Habitat||Ephemeral vegetation in a wet depression|
Cross-section round. Outline smooth. Culm center hollow. No visual difference between epidermis cells and sclerenchyma cells. Large vascular bundles in one row. Solitary large vascular bundles. Sclerenchymatic sheath around vascular bundles with 1-3 cells
Outline smooth. Upper epidermis cells in one row. Epdermis lignified. Epidermis with papillae. Vascular bundles near the lower side of the leaf. Large cavities.