Morphology

H, 40 -100cm

Ecology

hill and mountain, dry

Chorology

Eurasian

Xylem

Distinct annual rings, semi-ring porous, vessels in radial radial multiples and groups, , vessel diameter 30 – 50 mm vessel frequency 200-300 mm2, simple perforations, with gum deposits, with small pits, apotracheal parenchyma and paratracheal vasicentric, ray width 2-3 cells, rays homocellular with upright cells, with a few crystal druses.

Xylem-Code

See annex

Phloem

With small groups of sieve tubes in tangential layers, collapsed sieve tubes, with many crystal druses.

Explanations

For explanations please see the Feature Characteristics.

Cross section
    
Tangential section
  

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