Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe - Clustered Black Snakeroot


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Sanicula odorata - (image 1 of 5)



Family: Apiaceae


Synonymous with S. gregaria E.P. Bicknell


Woodlands, shaded floodplains, usually with some degree of disturbance. Can become a weed of shaded gardens.


In woodlands with Crataegus mollis, Crataegus punctata, Fraxinus americana, Parthenocissus quinquefolia, Prunus serotina, Prunus virginiana, Quercus rubra, Ribes missouriense, Sambucus canadensis, Tilia americana, Ulmus americana, Vitis riparia. Herbaceous associates in disturbed woodlands include Agrimonia gryposepala, Arisaema triphyllum, Claytonia virginica, Cryptotaenia canadensis, Galium aparine, Geranium maculatum, Geum canadense, Osmorhiza claytonii, Phlox divaricata, Phryma leptostachya, Polygonatum canaliculatum, Ranunculus abortivus, Ranunculus septentrionalis, Smilacina racemosa, Smilax lasioneura.


Nova Scotia and Quebec west to MN and eastern SD, south FL to TX.


Herbaceous perennial. Flowers greenish-yellow; sepals of staminate flowers deltoid-lanceolate, less than 1 mm long; styles conspicuous, much longer than the bristles, recurving back over the fruit. Ovaries and fruits short-stipitate (on a stipe). Plants typically with a yellow-green appearance.


Flowers early May to mid August

Wetland indicator: FAC

Most other members of this genus have greenish-white flowers rather than greenish-yellow.


Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY


Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.




 Michael Hough 2005