Tuesday, December 3, 2013

Staghorn Sumac is for the birds...

In early November when we headed up to Toledo for a little birding, we spent one morning at the Ottawa National Wildlife Refuge. Unfortunately, my favorite trails were closed, but we still were able to see three American Bald Eagles from a distance and numerous other birds and ducks. We walked the small trail and boardwalk near the visitor's center and saw lots of berry-producing plants. I especially liked the color showing on the Staghorn Sumac (Rhus typhina)...

The branches of Staghorn Sumac are furry like a stag's antlers when in velvet.
It's easy to see how Staghorn Sumac (Rhus typhina) gets its name. Its furry and velvety stems and branches resemble a stag's antlers in the "velvet" stage of development. 
A little about antlers and velvet...
Male deer grow new antlers every year. They shed them in late winter, and new antler growth begins in late March or early April. Antlers are bone, not horn, and the growing bone is fed by blood vessels in the sensitive skin that covers the bone, which looks like and is called "velvet." Antlers grow quickly, and by late summer the levels of the reproductive hormone testosterone increase, signaling the bone to start to harden. Up until then, the antlers were soft, spongy, and even delicate. Eventually, a ring at the base of the antler (the burr) cuts off the blood supply to the velvet, which dries up and falls off. The hard antlers remain on the stag through the height of the breeding season. As testosterone levels start to fall after the rut, the antlers eventually fall off. For a more detailed explanation of the growth of a deer's antlers, click here for an article by the University of Missouri that also contains photos of deer antlers in velvet. Click here for a similar article that explains how antlers grow by The Izaak Walton league of America. For a beautiful photo of a white-tailed deer in velvet, click hereFor a photo of a white-tailed deer losing his velvet, click here.

Incredible color of autumn is easily found on a Staghorn Sumac tree.
You can't beat the color of Staghorn Sumac in the autumn. 
A little about Staghorn Sumac, winter, and the birds...
Staghorn Sumac is native to the United States and is part of the cashew family. I love the bright red and orange color of the leaves in autumn, and a few years ago I added a few plants to my yard. They have multiplied and have already started a small colony, but even though I love the fall color, I love the fruit Staghorn Sumacs produce for the birds even more. Staghorn Sumac fruit helps birds get through the dead of winter. When all the other softer and more desirable berries of late summer and fall have been consumed, and the bushes and trees are all stripped bare, Staghorn Sumac fruit is still viable. The fuzzy fruit becomes an important source of food in the late winter and early spring for overwintering birds such as wild turkeys, Eastern Bluebirds, American Robins, Northern Cardinals, Mockingbirds, woodpeckers, chickadees, Brown Thrashers, Cedar Waxwings, Bobwhite Quail, grouses, and Hermit Thrushes. Staghorn Sumac "berries" are technically called "drupes" (a drupe is a fleshy fruit that surrounds a single seed in a shell; e.g., a cherry or a plum), and the conical cluster of drupes is called a "bob."

Vibrant red leaflets stand out against the dull background.
Staghorn Sumac leaves are compound and are made up of nine to 31 leaflets. The leaflets are between two and five inches long. They have toothed edges and hang opposite each another.

Staghorn Sumac is not Poison Sumac
I've heard people mention they don't like Staghorn Sumac, because they thought it was Poison Sumac. It's not. Staghorn Sumac has red berries, furry stems, and jagged (toothed) leaves. It's also common and grows at forest edges, clearings, and hillsides. Poison Sumac has white berries, smooth stems, and smooth leaves. It's not as common and grows in wetlands. Poison Sumac is not your friend. I read on the TrekOhio blog that it is the most toxic plant in the United States! For photos and more discussion of urushiol (the resin in the plant that causes the allergic reactions in poison ivy, poison oak, and poison sumac), click here. In Ohio, Poison Sumac is mostly found in the northeast and in boggy areas in the south. Urushiol doesn't bother the birds, and just like Staghorn Sumac fruit, birds like Poison Sumac berries.

Click here for more information on Staghorn Sumac from The Ohio State University's Ohio Perennial and Biennial Weed Guide. 

8 comments:

Montanagirl said...

Those bright oranges leaves are really pretty - they brightened my day. Thanks, Kelly! And Happy Holidays to you.

Janice K said...

I've lived in the woods many years, and have often seen those red leaves, but never knew the difference between the poisonous and non-poisonous kind. Now I know what to look for. Thanks!

TexWisGirl said...

i like the additions you made to your yard.

Roy said...

I collect the fruit and use them in my feeders throughout the winter every year - whole bobs in the flat feeder and drupes mixed in with the regular seed in the vertical feeder. Poor birdies need some extra vitamin C in their winter diet!

Laure Ferlita said...

I just never know what I'm going to learn when I visit you, Kelly! Love those gorgeous leaf colors…I'd have to try and capture those in my sketchbook. In fact, I may never leave the yard again with those bushes around!

Tammie Lee said...

this is all so interesting, thank you for sharing your research and lovely photos with us!

Weedpicker Cheryl said...

Great post, Kelly!

Bobs and drupes... all news to me!

Cheryl

Kelly said...

Thanks, everyone! I love these trees. Their autumn color is outrageous, and if they bring birds to my yard, all the better!

Roy...that's a good idea! I need to do that too!