Sedge Master

Sedge Key

Glossary

C. godfreyi

C. longii

C. lupuliformis

C. verrucosa

C. vexans

 

 

 

 

 Carex

The perigynium is a sheath covering the ovary/achene in Carex.  The perigynium surrounding the achene looks like a flat bottle.  It is wafer-thin.

1. Heads ellipsoid or nearly so; stigmas 2...2

1. Heads cylindric; stigmas...3

2. Perigynium 3-4 mm wide...C. vexans

2. Perigynium 1.5-2.5 mm wide...C. longii

3. Style persistent on the achene...C. lupuliformis

3. Style withering...4

4. Plants not purplish basally. Perigynium waxy or glaucous. Nerves of perigynium flush or a a little raised...C. verrucosa

4. Plants purplish in the basal half. Perigynium not glaucous. Nerves of perigynium sunken...C. godfreyi