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Morphology

H, 10-20cm

Ecology

subalpine, alpine, medium site

Chorology

Western North America

Xylem

Distinct rings, semi-ring porous, vessels solitary, vessel diameter 20 ¿ 50µm, vessel frequency 200-500 mm2, simple perforations, fibers thin -walled, apotracheal parenchyma, ray width >10cells, all cells upright

Xylem-Code

See annex

Phloem

Uniform phloem and cortex, distinct ray dilatations, without crystals.

Explanations

For explanations please see the Feature Characteristics.

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

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