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Morphology

T, H, 15 - 40 cm

Ecology

Hill and mountaine zone, dry site

Chorology

N- American, subcosmopolitean

Xylem

Only one ring, vessels solitary, in groups, in radial multiples, tangential rows of vessels, simple perforations, tangential bands with thick walled fibers, paratracheal parenchyma, rayless.

Xylem-Code

See annex

Phloem

No tangential layers of collapsed sieve cells, groups of sclereids in cortex. 2.1.6.

Remarks

Brig, Valais, Switzerland

Explanations

For explanations please see the Feature Characteristics.

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

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