Today's post is written by Lynette Score, one of our passionate
naturalists here at the nature center. She writes about skunk cabbage, a telltale sign of spring in the marsh.
Check out
our new woodchip trail- the one that branches off to the left soon after
passing the vermicompost bins on the east side of the building. If you keep
your eyes open as you enter the swamp, you might notice a purple plant with
green spots growing in the marshy soil. No, you are not seeing things- this is
skunk cabbage!
skunk cabbage at Fenner Nature Center |
Skunk
cabbage is among the first plants to appear above ground after the winter (not
that we really had a winter this year, but if we did…). While all the other
plants are still dormant as seeds or bulbs or rhizomes in the frozen ground,
skunk cabbage is already out and about. The first part of the plant to emerge,
which is what you will see if you head out there now, is called the spathe. This is the purple,
green-spotted thing I told you about. Skunk cabbage spathes emerge as early as
February. If there had been any snow in the swamp this winter, you would have
seen a snow-free circle around each spathe. This is because skunk cabbage
spathes emit heat. No joke!
As the skunk
cabbage matures further, a clump of small yellow flowers called the spadix forms inside the spathe. When the
actual leaves unfurl in late spring, they are huge- up to a couple of feet
long! If you crush a piece of a skunk cabbage leaf in your hand and smell it, you’ll
understand how the plant gets its name. It definitely smells like a skunk. When
the plant is fully mature, it forms an underground fruit that looks like a
brain! This fruit has been rumored to have many medicinal uses including the
treatment of convulsions, cough, and skin ailments. The Iroquois used the seeds
from the fruit in fertility rituals. Talk about a cure-all!
Some people
might try to tell you that skunk cabbage leaves are edible. Don’t believe them.
Raw skunk cabbage leaves are toxic to mammals, which we are. Skunk cabbage
leaves also contain calcium oxalate crystals, which cause a painful burning
sensation in your mouth if you eat them. The theory behind eating skunk
cabbage, as with a lot of “edible” plants, is that if you boil it enough it
will become more palatable and safe to eat. This is also probably true of your
belt, but that doesn’t mean that you should eat it. Furthermore, it is very
difficult to remove all the calcium oxalate crystals, even with boiling.
Getting to eat something that tastes not-painful at best isn’t worth the risk
of getting sick or hurting your mouth.
Skunk
cabbage is, however, an important resource for many species. Many small
invertebrates eat the leaves, and the size of the leaves also makes them a
great shelter source for small animals of all sorts. Since they aren’t affected
by the calcium oxalate crystals and don’t seem to mind the smell, we’ll let
them enjoy skunk cabbage as food and shelter. As for us, I would say there’s
enough fun to be had by simply wondering at this oddball of a plant.
Sources
www.fcps.edu/islandcreekes/ ecology/skunk_cabbage.htm
www.wildmanstevebrill.com
Sources
www.fcps.edu/islandcreekes/
www.wildmanstevebrill.com