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Morphology

N 80-150

Ecology

mountain and subalpine meadow

Chorology

W-North America

Xylem

Distinct rings, semi-ring-porous, vessels mainly in tangential rarely in dendritic groups, vessel diameter 30–50mµ, simple perforations, fibers with small pits, fibers thick-walled, parenchyma in uniseriate tangential intraannual layers and paratracheal, rays 4-8 seriate, rays unlignified, homogeneous with prostrate cells.

Xylem-Code

See annex

Phloem

Groups of sieve tubes and parenchyma in tangential layers, tangentially arranged layers of thick-walled sclerenchyma between unlignified rays. With a few prismatic crystals.

Explanations

For explanations please see the Feature Characteristics.

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

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