|First Collector||L.E. Stevens|
|Habitat||Jacob Lake, Big Spring|
Cross-section triangular. Outline with rips. Culm center filled. Recognizable epidermis cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in one row. Small vascular bundles integrated in the sclerenchymatic belt. Solitary large vas
Outline wavy. Upper and lower epidermis cells of equal size and shape. Upper epidermis cells in one row. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.