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Morphology

H, 10-40 cm

Ecology

Mountain and subalpine, medium site

Chorology

Rocky mountains

Xylem

Distinct rings in radial vascular bundles, diffuse and semi-ring porous, vessels in groups, earlywood vessel diameter 20-40µm, fibers absent, simple perforations, scalariform intervascular pits, pervasive parenchyma, vascular bundles rayless, very large rays (extrusions from the pith) between the bundles.

Xylem-Code

See annex

Phloem

Groups of sieve elements tangentially arranged in a thin walled parenchymatic tissue.

Explanations

For explanations please see the Feature Characteristics.

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

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