|First Collector||J. Kalafarski|
|Habitat||Happy Jack, S of Flagstaff|
Cross-section round. Outline smooth. Culm center hollow. Recognizable epidermis cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in 2-3 rows. Small vascular bundles integrated in the sclerenchymatic belt. Solitary large vascular b
Outline with rips. 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.