|Habitat||Pinus sylvestris hemiboreal forest on the flat valley bottom|
Cross-section round. Outline with rips. Culm center hollow. Recognizable epidermis cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in 2-3 rows. Solitary large vascular bundles. Sclerenchymatic sheath around vascular bundles with
Outline wavy. Upper epidermis cells in several rows. 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. Large cavities.