Cannabis sativa L.

Cannabaceae


Morphology

t, 150 cm

Ecology

hill and mountain

Chorology

Asia

Xylem

Only one ring, vessels 50 - 100 ┬Ám in diameter, vessels in radial groups, simple perforations, inter-vascular pits round in alternating position or scalariform, thin-walled tylosis, fibers thin-to thick-walled, with tension wood, parenchyma paratracheal, ray width 1-3 cells, heterocellular with central prostrate and a few marginal square or upright cells, with rectangular prismatic crystals in ray cells and a few crystal druses.

Xylem-Code

See annex

Phloem

Sclereids in tangential layers and radial strips, with ray dilatations, with crystal druses and many prismatic crystals. Laticifers are absent in the present material.

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