Actaea

The colorful berries of our two fleshy fruited species are reputed to be poisonous, although no fatalities from eating them are recorded.

1. Fruit a follicle; raceme elongate (> 10 cm long), often with branches at the base.

A. racemosa

1. Fruit a fleshy berry; racemes shorter (< 10 cm long), unbranched.

2. Pedicels soon thickening, in fruit usually almost or quite as thick as the axis of the raceme and equally red; fruit white, capped by a conspicuous dark stigma ca. 1.5–2.5 mm in diameter; petals ± truncate, withered in appearance or even anther-like at the tip.

A. pachypoda

2. Pedicels slender, not exceeding 0.5 (–0.7) mm in diameter, even in fruit; fruit red or white, capped with a relatively inconspicuous stigma (less than 1.5 mm across); petals not modified at the tip.

A. rubra

All species found in Actaea

Actaea pachypodaWHITE BANEBERRY, DOLL'S-EYES 
Actaea racemosaBLACK SNAKEROOT, BLACK COHOSH 
Actaea rubraRED BANEBERRY 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 22, 2017. http://michiganflora.net/genus.aspx?id=Actaea.