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Morphology

H, 10 - 40cm

Ecology

mountain and subalpine volcanic ash

Chorology

W-American

Xylem

Indistinct rings, vessels in groups, simple perforations, vessel diameter 40-50µm, scalariform and round intervessel pits, fibers thick-walled, parenchyma vasicentric and marginal, rays with 10-20 cells, with sheet cells, homocellular with prostrate cells,

Xylem-Code

See annex

Phloem

Tangential oriented groups of sclerenchyma cells.

Explanations

For explanations please see the Feature Characteristics.

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

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