Morphology

C 10-30 cm

Ecology

arid

Chorology

Sahara

Xylem

Distinct rings, semi-ring-porous, vessels in radial to slightly diagonal groups, simple perforations, with helical thickenings, ray-vessel pits large, round, vessels surrounded by vasicentric tracheids, fibers thin-to thick-walled, with small pits, parenchyma apotracheal, in aggregates and terminal, rays uni- and bi-seriate, homocellular with prostrate cells.

Xylem-Code

See annex

Phloem

Slide missing

Explanations

For explanations please see the Feature Characteristics.

Cross section
 
Tangential section
 

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