Astragalus praelongus Sheld

Fabaceae


Morphology

H, 10 - 30cm

Ecology

mountain and subalpine dry meadow

Chorology

Rocky Mountains

Xylem

Distinct rings, semi-ring-porous, vessels in groups, vessels fairly thick-walled, simple perforations, round to scalariform intervessel pits, vessel diameter 40-70 ┬Ám, parenchyma paratracheal to pervasive, ray width 3-6 cells, with sheet cells, homocellular, prostrate cells, ray cells unlignified, crystals absent.

Xylem-Code

See annex

Phloem

With sieve tube groups, with ray dilatations, irreguar radial rows of sclerenchyma cells, crystals absent.

Explanations

For explanations please see the Feature Characteristics.

Cross section
  
Tangential section
  
Bark
  

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