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Morphology

H, 10 - 20cm

Ecology

mountain and subalpine

Chorology

W-North America

Xylem

Only one ring, vessels 50-100 µm in diameter, vessels solitary and in small groups, simple perforations, vessels thick-walled, pits scalariform, fibers abent in the center, thin-walled with small pits at the periphery, parenchyma pervasive in the center, later not to recognize, rays absent, included groups of sieve-tubes near the pith,

Xylem-Code

See annex

Phloem

Phloem uniform, with enlarged chambers with raphides surrounded by mucilage.

Explanations

For explanations please see the Feature Characteristics.

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

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