Astragalus armatus Lam.

Fabaceae


Morphology

H, 10 - 30cm

Ecology

arid desert

Chorology

North-Africa

Xylem

Indistinct rings, vessels in long radial multipels, vesses thick-walled, simple perforations, round and scalariform intervessel pits, vessel diameter 40-80┬Ám, fibers thick-walled, parenchyma vasicentric and confluent, ray width 2-6 cells, homocellular with prostrate cells, ray cells unlignified, crystals absent.

Xylem-Code

See annex

Phloem

With sieve tube groups, with ray dilatations, tangential layers of sclerenchyma groups, crystals absent.

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Tangential section
 
Radial section
 
Bark
 

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