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Morphology

H, 10-20cm

Ecology

Hill and mountain zone, dry site

Chorology

N-American

Xylem

Indistinct rings, semi-ring porous, vessels solitary and in groups, simple perforations, vessel diameter in earlywood 30 - 50µm, fibers distinctly bordered, apotracheal parenchyma, ray width 1-3 cells, all ray cells upright.

Xylem-Code

See annex

Phloem

With sieve cell groups. Old sieve cells not collapsed, distinct ray dilatations, groups of sclereids in cortex. Crystals absent.

Explanations

For explanations please see the Feature Characteristics.

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

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