|Habitat||raised bog with Larix sibirica and Betula rotundifolia|
Cross-section round. Outline with rips. Culm center hollow. Recognizable epidermis cells. Peripheral sclerenchymatic stabilisation structure (girders) rectangular. Large vascular bundles in one row. Solitary large vascular bundles. Sclerenchymatic sheath
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 the lower side of the leaf.