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Morphology

H, 10-20cm

Ecology

desert, dry site

Chorology

Western North America

Xylem

Distinct rings, semi-ring porous, vessels in radial groups arranged in tangential rows, vessel diameter 20 ¿ 50µm, vessel frequency 200-500 mm2, simple perforations, gash-like vessel- pits fibers thin to thick-walled paratracheal and marginal parenchyma, rays mostly uni- and biseriate, rays with exclusively upright cells,

Xylem-Code

See annex

Phloem

Uniform phloem and cortex, with tangential rows of 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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