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Morphology

G, 5-20cm

Ecology

subalpine, alpine, medium site

Chorology

Arctic-Alpine

Xylem

Bulb. Indistinct rings, diffuse porous, vessels solitary, vessel diameter <20mµ, vessel frequency 200-500 mm2, simple perforations, fibers thin- walled, paratracheal parenchyma, ray width 5->10 cells, exclusively square and upright ray cells, siphonostele with single vascular bundles, with crystal druses in the rays

Xylem-Code

See annex

Phloem

Radial rows of parenchyma cells, with small groups of sieve cells, 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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