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Morphology

H, 10-40 cm

Ecology

mountain zone, dry site

Chorology

Western North America

Xylem

Distinct rings, semi-ring porous, vessels in groups arranged in tangential rows, vessel diameter 20 ¿ 50µm, vessel frequency 200-500 mm2, simple perforations, fibers thick -walled, paratracheal parenchyma, ray width 1-2cells, heterocekkular with 1-4 square cells

Xylem-Code

See annex

Phloem

With sclereids, 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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