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Morphology

H, succulent plant, 10-20 cm

Ecology

subalpine and mountain zone, dry site

Chorology

Rocky mountains

Xylem

Distinct rings, semi-ring porous, vessels solitary, Vessel diameter <20mµ, vessel frequency 200-500 mm2, reticulate vessel-pitting, intra-annual tangential bands of fibers, pervasive parenchyma rayless, interxylary cork bands, crystals absent.

Xylem-Code

See annex

Phloem

Distinct sieve cell groups parenchyma in radial rows, crystals absent.

Explanations

For explanations please see the Feature Characteristics.

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

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