Astragalus frigidus (L.) A. Grey

Fabaceae


Morphology

H, 10 - 40cm

Ecology

subalpine and alpine wet meadow

Chorology

Arctic-Alpine

Xylem

Distinct rings, semi-ring-porous, vessels solitary, vessels thick-walled, simple perforations, round intervessel pits, vessel diameter 40-70┬Ám, fibers thick-walled, fiber groups in tangential rows, parenchyma vasicentric and confluent, ray width 2-5 cells, homocellular, prostrate cells, ray cells unlignified, crystals absent.

Xylem-Code

See annex

Phloem

With sieve tube groups, and collapsed sieve tube groups with ray dilatations, radial rows of sclerenchyma groups, crystals absent.

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Bark
 

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