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Carex jamesii

Family
Cyperaceae
Common Name(s)
James' sedge
Flowering Time
May
Fruit/Seed Maturation Sign
Perigynia turns from green to brown/black
Fruit/Seed Collection Dates
Early to mid June to early July
Notes

Of 390 seeds planted in a central Iowa demographic study, 41 emerged (11%) and 18 survived to year 5; 13 flowered and produced seed after an average of 7.5 years; recruitment of new individuals was also observed (Mabry 2023).

In a study using tranplants, survival was 94-100% after year 2, with recruitment of new individuals also observed in year 2 (Golay et al. 2013); can form dense mats (mabry 2023).

Seed output (seeds are ant dispersed) and vegetative spread low (Barkely 1986, Gleason and Cronquist 1991); rootstocks/rhizome short (Mackenzie 1940, Mohlenbrock 1999).

 

 

Seed Cleaning
Separate achenes from bracts; achenes do not separate easily at time of collection
Storage
dry?
Restoration Potential
High (with transplants)
Germination Method(s)
Cold, moist stratification