Euphorbia rigida M.Bieb.

Euphorbiaceae


Morphology

C, 20-40 cm

Ecology

mediterranean

Chorology

S-European

Xylem

Distinct rings, semi-ring- porous, vessel in clusters and short radial multiples, simple perforation, vessel diameter 30-50┬Ám, round intervessel pits, fibers thick walled, (much tension wood) parenchyma irregular from indistinct to pervasive, 2-3 seriate, homocellular rays upright cells.

Xylem-Code

See annex

Phloem

Phloem with groups of sieve tubes, with ray dilatations, with lactifers and a few isolates sclereids.

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