|Habitat||Tundra grassland on a steep rocky slope|
Cross-section with exeptional shape. Outline wavy. Culm center filled. Recognizable epidermis cells. Epidermis with cuticula. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Solitary large vascu
Outline wavy. Upper epidermis cells in several rows. Vascular bundles near the lower side of the leaf. Girders extending from the vascular bundle to the lower side of the leaf.