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Morphology

H, 5-20cm

Ecology

subalpine, alpine, medium site

Chorology

Arctic-Alpine

Xylem

Mostly,indistinct rings, diffuse porous, vessels solitary, vessel diameter vessel diameter 20 ¿ 30µm, vessel frequency vessel frequency 200-500 mm2, simple perforations, siphonostele with separated vascular bundles, fibers absent, pervasive parenchyma, ray width 4->10 cells, exclusively square and upright ray cells, without crystals.

Xylem-Code

See annex

Phloem

Distinct sieve cells in radial groups, distinct ray dilatations, with crystal druses

Explanations

For explanations please see the Feature Characteristics.

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

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