Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Carya laciniosa (F. Michx.) G. Don
Coefficient of Conservatism: 9
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Tree

Carya laciniosa twig A. A. Reznicek twig

River banks and rich floodplain and wet lowland decicuous forests, often on clayey or loamy soils.

The stout branchlets and twigs of this species contrast (as do the very large silvery brown buds and large fruit) with the more slender (or smaller) ones of other species in the genus. Mature first year twigs are a distinctive pale orange-brown or tan color, with especially orange-tinted lenticels, in contrast to the darker brown typical of Carya ovata. The bark becomes "shaggy" with age, but appears to remain more or less smooth for longer than C. ovata.

Larger seedlings and saplings typically have the bud scales conspicuously persistent for a year or more, and the leaf rachis also persists through the winter, becoming tough and arched upon drying. Both these persistent parts allow small vegetative individuals to be recognized through much of the spring and summer. Large fruiting trees have the leaves and bud scales more normally deciduous.




Allegan County
Berrien County
Branch County
Calhoun County
Genesee County
Gratiot County
Hillsdale County
Ingham County
Jackson County
Kalamazoo County
Kent County
Lenawee County
Monroe County
Oakland County
St. Joseph County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 28, 2023.