|First Collector||W. McBride|
|Habitat||West Clear Creek, Clover Creek|
Cross-section round. Outline smooth. Culm center hollow. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Solitary large vascular bundles.
Outline smooth. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.