Morphology

z, 5-20 cm

Ecology

subalpine and alpine

Chorology

arctic-alpin

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-walled, intraannual parenchyma not to recognize, rays uniseriate, homocellular with upright cells.

Xylem-Code

See annex

Phloem

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

Explanations

For explanations please see the Feature Characteristics.

Cross section
  
Tangential section
 

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