|Habitat||Leeward place beyond a wind-swept ridge, among shrubs of Betula rotundifolia and Juniperus sibirica; common|
Cross-section round. Outline smooth. Culm center hollow. No visual difference between epidermis cells and sclerenchyma cells. Continuous peripheral sclerenchymatic belt. Small vascular bundles integrated in the sclerenchymatic belt. Solitary large vascula
Outline smooth. Upper epidermis cells in one row. Epdermis lignified. 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.