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Morphology

T 40-80 cm

Ecology

hill and mountain

Chorology

N-America

Xylem

Only one ring, vessels 50-100 µm in diameter, vessels solitary and in small groups, simple perforations, vessels thin-walled, pits round or small in alternating position, fibers thin-walled with small pits, with tension wood, parenchyma paratracheal, rays uniseriate, rarely biseriate, homocellular with square and upright cells, 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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