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Morphology

H, 10 - 20 cm

Ecology

alpine, initial site

Chorology

Colorado. USA

Xylem

Distinct rings, semi-ring porous, vessels in radial multiples, simple perforations, paratracheal parenchyma, thin walled marginal parenchyma, ray width >10 cells.

Xylem-Code

See annex

Phloem

Tangential layers of collapsed sieve cells, distinct ray dilatations,

Remarks

Summitville, Colorado, USA

Explanations

For explanations please see the Feature Characteristics.

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

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