Draba streptocarpa A. Gray

Brassicaceae


Morphology

H, 3-7cm,cushion plant

Ecology

Alpine, medium site

Chorology

Colorado, North American

Xylem

Distinct rings, semi-ring porous, vessels solitary, scalariform perforations, vestured pits, paratracheal parenchyma, much thin walled parenchyma between vessels and fibers, rayless.

Xylem-Code

See annex

Phloem

Tangential layers of collapsed sieve cells, radial rows of parenchyma cells, no sclereids.

Remarks

Cross section:
Tangential section:
Radial section:
Bark:

Cottonwood-Pass, Colorado, USA

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