Morphology

H, 15-30cm

Ecology

Hill and mountain zone, coastal zone

Chorology

Western N-America

Xylem

Distinct rings, semi-ring porous, vessels solitary and in short radial multipels vessel diameter 15-25mµ, scalariform perforations with 5-15 bars, vessel frequency 200-500 mm2, scalariform vessel-pitting, fibers with small round pits (fiber tracheids), rayless and pith zones between vascular bundles (very large rays), crystals druses in the pith zones.

Xylem-Code

See annex

Phloem

Uniform phloem and cortex. Pith with crystal druses.

Explanations

For explanations please see the Feature Characteristics.

Cross section
    
Tangential section
 
Radial section
   
Bark
 

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