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Morphology

N , 100-300cm

Ecology

hill and mountain

Chorology

W-North America

Xylem

Distinct rings, diffuse-porous, vessels solitary and in groups, scalariform perforations with 10-15 bars, intervessel pits rarely scalariform and mostly round, vessel diameter 25-40 µm, vessel frequency 300 - 600 mm2, fibers with large pits, fibers thin-walled, parenchyma paratracheal, rays uniseriate, homocellular with upright cells and 2-3 seriate homocellular with prostrate and with upright cells.

Xylem-Code

See annex

Phloem

With tangential rows of sclerenchyma.

Explanations

For explanations please see the Feature Characteristics.

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

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