Morphology

z, 5-20 cm

Ecology

boreal meadow

Chorology

North America

Xylem

Distinct rings, diffuse-porous, vessels in short radial multipels, simple perforation, vessel diameter 30-50µm, large vessel-ray pits, fibers with small pits, fibers thin-to thick-walled, parenchyma not to recognize, rays uniseriate, heterocellular with prostrate and a few rows of upright marginal cells.

Xylem-Code

See annex

Phloem

With tangential layers of sieve-tubes and parenchyma cells, tangential bands of sclerenchyma cells, with crystal druses and prismatic crystals.

Explanations

For explanations please see the Feature Characteristics.

Cross section
 
Tangential section
  
Bark
 

© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010