|Collection Date||28.6. 1891|
|Habitat||Perennial. Wet meadow, fen, hill zone.|
Culm-diameter 0.5-1 mm, wall large, radius of culm in relation to wall thickness approximately 1: 0.5. Outline triangular, obtusely. Culm-center hollow and surrounded by a few thin-walled, not lignified cells. Center with net-like aerenchyma (stellate).
Rhizome diameter 2-4.99 mm, Rhizome center full, containing lignified cells. Endodermis absent.With cortex/central cylinder separation. Endodermis present. Endodermis as a sclerenchymatic belt. Vascular bundles in the cortex absent. Vascular bundles in ce