September Nature Nugget – PAWPAW

“Pickin’ up paw paws, put ’em in your pocket

Way down yonder in the paw paw patch”

Appalachian Folk Song
Pawpaw leaves. J’s hand for scale

It’s September in Maryland and do you know what that means? PAWPAW SEASON! Okay let’s take a step back because chances are, you might not know what pawpaws are! Pawpaw trees (Asimina triloba) are native to the eastern US into Canada and produce a fruit in the late summer/ early fall. It’s actually the largest fruit indigenous to the United States! Cool right? So bright green pawpaw fruit start forming in the summer but come Fall they will ripen and turn soft and might even look slightly yellow-brown. They’re best eaten when they’re either fallen from the tree or easily come off the stem.

Pawpaw trees have really large, long leaves on spindly trunks. They prefer growing in bottom land that is very fertile and well-draining. I always keep my eyes out for them along stream and river beds. They’re considered an undergrowth tree, which means that they grow in the shade of larger trees. They can grow up to 30ft tall and are usually found in hardwood forests. 

Pawpaw flower

In the springtime, the pawpaw produces flowers with six petals arranged in sets of three. They are a beautiful deep maroon color but they don’t smell too nice! Around the same time that the flowers emerge, the tree begins putting out its signature huge oblong leaves. They are bright green most of the season and then turn to yellow and brown after it drops its fruit. 

But what you probably want to know more about is the fruit! Pawpaw fruit is soft and creamy, often compared to custard. In fact, it’s very similar to bananas which over the years has given it a variety of colloquial names including: wild banana and Appalachian banana. The fruit contains several large brown seeds in a row and these seeds along with the peel are not edible.

Freshly cut pawpaw with visible seeds

History

Although you won’t find a pawpaw in the grocery store, they do have a long history in this area. Pawpaws were so important to the indigenous Shawnee people, who inhabited the Ohio Valley, that they named a month for them! In the Shawnee language September is literally called the Pawpaw Moon. The first written record of pawpaws dates back to 1541 when a Spanish explorer wrote of seeing Indigenous peoples harvesting them. Pawpaws were even enjoyed by founding fathers, with Thomas Jefferson planting groves at Monticello and one of George Washington’s favorite desserts was chilled pawpaw. Lewis and Clark even snacked on them during their expedition west!

Use and Popularity 

Gazing longing at a pawpaw that’s not ripe yet

Pawpaws have grown in popularity with the increased interest in local foraging. Pawpaw fruits are notoriously difficult to transport as their flesh bruises easily and they quickly rot once they have been picked. However, more and more people are realizing how easy it is to find pawpaws around their own neighborhoods! On one of our hikes at the American Chestnut Land Trust, J and I found a huge pawpaw grove. Sadly, they weren’t ready to be picked yet. Another weekend, we were walking along the C&O Canal and found a whole group of people harvesting pawpaws. They were kind enough to share their loot with us so we had a tasty snack for our walk. Then finally, I found some pawpaws within walking distance from my home. I actually was out running and completely abandoned that when I found a tree with perfectly ripe pawpaws. I harvested a few, leaving some for others, and brought them home to gather the puree. 

My pawpaw loot

This was my very first attempt at making something with pawpaws. I usually just eat them raw (which is delicious) but I had been hearing a lot about how tasty they are in ice cream or baked goods. I got about 2 cups of pulp from my pawpaws so I decided to make bread. I took my favorite banana bread recipe and just subbed the pawpaws in for the fruit. I thought it was delicious and interestingly the bread turned pink! Apparently pawpaw fruit reacts with baking soda to turn it a light pink color. My whole family really liked the bread and we thought it tasted slightly berry-like. It was perfect for breakfast with a cup of coffee. I’m calling this bake a success! I think next time I would maybe add cinnamon or ginger. Have you ever tried a pawpaw? What did you think?

Hannah’s Pawpaw Bread

1 ¼ cup sugar
2 eggs
½ cup unsalted butter, softened 
2 cups pawpaw puree 
½ c plain Greek yogurt
1 tsp vanilla
2 ½ cups flour

Preheat oven to 350F. Grease the bottom of a 9 in loaf pan. Cream together butter and sugar. Stir in eggs and vanilla. Add pawpaw puree and yogurt. Beat until smooth. Stir in flour, baking soda, and salt until just combined. Don’t over mix! Pour into pans and bake for about an hour and 15 mins. This makes one very large loaf or two smaller loaves. If making muffins, bake for about 25-30 mins. Enjoy!

Resources: 

https://www.wvpublic.org/section/arts-culture/2020-10-09/searching-for-the-pawpaws-indigenous-roots

http://www.arnoldia.arboretum.harvard.edu/pdf/articles/2014-72-1-the-pawpaw-a-forgotten-north-american-fruit-tree.pdf

https://en.wikipedia.org/wiki/Asimina_triloba

https://www.npr.org/sections/thesalt/2017/09/15/550985844/this-once-obscure-fruit-is-on-its-way-to-becoming-pawpaw-pawpular

Nature Nugget – July 28

If a tree falls in the forest…should it stay there?

We’ve all seen fallen trees in the woods. Whether it’s from a bad storm or just the end of a tree’s life, eventually a tree will die. If you’re like me, you’ve noticed that in some state parks and forests, when a tree falls it’s just left there. Coming from a world of manicured lawns where anything unsightly is removed, this always felt wrong to me. Shouldn’t they remove the log? Can’t it be used for something?

In today’s Nature Nugget, I want to talk about how dead and decaying trees actually form an important part of a forest’s ecosystem. Although the tree has died, its part in the story is just beginning! But first some terminology: a dead tree that has fallen is a log. A dead tree that is still standing is a snag.

Fallen tree that was cut to remove from trail

What do dead and decaying trees provide?

  • Roosting spot for birds such as woodpeckers
  • Main home for bugs like ants, beetles, wasps and bees. Dead logs are also prime homes for larger critters like salamanders, frogs, and even snakes. Some scientists estimate that dead wood provides food and homes for more than 40% of forest wildlife species!
  • Form the bottom of the food chain for detritivores (organisms that feed on dead material) like fungi and bacteria which are then consumed by other animals
Fungi growing on decomposed log
  • Prevents erosion by reducing stormwater runoff. Logs in running water also prevent bank erosion, as well as trap sediment so that it doesn’t flow any further along.
  • Replenishes nutrients in the soil. Research has shown that trees are the main source of organic material in soil!
  • Plays an important role in forest regeneration. Not only does a fallen tree open up the canopy and make room for new trees, they also can become an extremely fertile growing medium for seeds and seedlings that have gathered there.
  • In ponds and streams, downed trees serve as sunning spots for turtles, fishing perches for birds, and even nests for fish.
Turtles sunbathing on a log

I think it’s pretty clear that dead tree are essential to the forest ecosystem! Now some people might be wondering about dead hazards and that’s a good point! Dead trees, especially snags can be seen as a fire hazard. And with wildfires constantly in the news, it’s definitely something to be concerned about! But remember, some wildfires are natural and can even be good for the ecosystem. There are certain species of plant that even need fire in order to germinate! However, if you have a dead tree on your property, you should get it removed. Dead wood is still a fire hazard and also a falling hazard especially near homes and people. Leave the dead wood to the forest!

Dead and decaying trees form an important part of a forest’s ecosystem. That’s why they are often left on the forest floor in parks. It doesn’t mean that the park isn’t well taken care – quite the opposite actually! Next time you pass a decaying tree, just think of all the life that could be starting a new inside of it.

Sources:

https://www.thewildlifenews.com/2018/12/20/the-ecological-value-of-dead-trees/
https://www.fs.fed.us/pnw/sciencef/scifi20.pdf
https://www.americanforests.org/blog/nurse-logs-healers-forest/
https://www.nnrg.org/habitat-piles/
https://woodlandfishandwildlife.com/wp-content/uploads/2019/12/Family-Forests-and-Wildlife_What-you-Need-to-Know_reduced.pdf
https://dnr.maryland.gov/streams/Publications/WoodyDebrisForWeb.pdf