Carex petricosa var. petricosa

Illustrated
Synonyms: Carex franklinii Boott Carex lepageana Raymond Carex magnursina Raymond
Treatment appears in FNA Volume 23. Treatment on page 478. Mentioned on page 479.

Culms to 90 cm. Stigmas mostly 3. Achenes mostly trigonous in 1/2 pistillate flowers and fruits.


Phenology: Fruiting summer.
Habitat: Meadows, screes, disturbed slopes, flood plains, stream banks
Elevation: 100–2800 m

Distribution

V23 877-distribution-map.jpg

Alta., B.C., N.W.T., Yukon, Alaska, Mont., c, n, ne Asia.

Discussion

As defined here, Carex petricosa var. petricosa includes the Asian species C. macrogyna Turczaninow ex Steudel. T. V. Egorova (1999) stated that C. macrogyna has a staminate terminal spike, while C. petricosa var. petricosa has an androgynous terminal spike. In North America, C. petricosa var. petricosa has the terminal spike staminate or androgynous.

A report of the Asian species Carex stenocarpa Turczaninow ex V. I. Kreczetowicz from western Alaska is referable to this taxon.

Selected References

None.

Lower Taxa

None.
Peter W. Ball +  and Joy Mastrogiuseppe +
Alta. +, B.C. +, N.W.T. +, Yukon +, Alaska +, Mont. +, c +, n +  and ne Asia. +
100–2800 m +
Meadows, screes, disturbed slopes, flood plains, stream banks +
Fruiting summer. +
Amer. J. Sci. Arts +
Illustrated +
Carex franklinii +, Carex lepageana +  and Carex magnursina +
Carex petricosa var. petricosa +
Carex petricosa +
variety +