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Morphology

H, 10-20cm

Ecology

subalpine, alpine, medium site

Chorology

Rocky mountains

Xylem

Stem often fluted. Parts of the stem get laterally isolated and form a radial oriented strip. Distinct rings, remaining vascular bundles, semi-ring porous, vessels in groups, vessels thick walled with round intervessel pits, vessel diameter 20-35 µm, simple perforations, fibers absent, parenchyma pervasive, rays absent inside vascular bundles, between them very large rays with thin-walled, unlignified cell walls.

Xylem-Code

See annex

Phloem

With sieve-cell groups, mostly in tangential rows.

Explanations

For explanations please see the Feature Characteristics.

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

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