In Defense of Nature

Oriental Bittersweet—A Murderer Who Kills by Strangling or Smothering His Victims?!

A Northern Mockingbird defends its larder of Oriental Bittersweet fruits that would help it to survive the winter of 2019-2020.

Thanks to misguided human intervention, the vine was cut on this tree that had stood alongside a dirt road for decades, which resulted in the mockingbird losing its dependable food source for the following winter. The Oriental Bittersweet started to regrow in the spring of 2020 (seen here at bottom up to middle of photo), but wasn’t ready to make fruits by the winter of 2020-2021. How was depriving this bird (and possibly other animals) of food throughout the harshest time of the year helpful to our natural world?

ALL TEXT AND PHOTOS © Marlene A. Condon

 

A “fact” sheet from the Blue Ridge PRISM (https://blueridgeprism.org/factsheets/), a group whose “mission is to lessen the negative impact of invasive species on both private and public land within 10 counties located in Virginia’s northern Blue Ridge region” (https://blueridgeprism.org/) declares that Oriental Bittersweet “murders forests, strangles trees, [and] smothers [the] understory.”

 

Wow. This statement exemplifies perfectly how people concerned about “invasive” plants tend to employ derogatory accusations to prejudice the reader’s opinion right from the get-go. And that’s not all.

 

Continue reading and you find an emotional essay that, rather than straightforwardly supplying facts, instead infuses this vine with uniquely human behavior: “[T]his attractive vine has an aggressive agenda.” Honestly? For bittersweet to have an “aggressive agenda”, it would have to have brains to carry out a conscious and deliberate plan of assault upon the trees of the forest.

 

This type of barrage—one that accuses so-called invasive plants of behaving in the manner of disreputable human beings—is typical of much nativist rhetoric. It has always struck me as odd because we’re talking about plants.

 

So! Let’s move from the fantasy of plants behaving as if they are bad people to the reality of plants behaving quite naturally as plants.

 

What do plants need to do to perpetuate their species?

 

·    They need to grow to reach maturity; in the case of vines, that growth is usually upwards. Many vining plants cannot flower—which they need to do if they are to reproduce—if forced to grow horizontally.

·    Plants need to get their offspring into the wider world in case catastrophe strikes their original position. This feat is often accomplished with the help of animals that enjoy eating fruits produced by the plant. Whether the animal eats the fruits on the spot or carries them away, the seeds within the fruits may successfully get through the animal’s intestinal tract to land far away from the parent plant, allowing the species to spread for the continuation of its kind.

 

In other words, what people see as an “infestation” is simply a species doing what it must to keep from going extinct. It doesn’t know some people have a problem with that.

 

The aforementioned “fact” sheet notes that Oriental Bittersweet “thrives in disturbed soil and tolerates full sun and dappled shade. It may occur abundantly around old home sites, in fields and fencerows, along road edges, and in forests throughout the Blue Ridge.” The sheet goes on to mention that, “This invasive vine now infests the eastern U.S.” and “has been a serious pest in New England since the 1970’s [sic].”

 

What does this paragraph tell us? It says that rather than being “a real beast” as the fact sheet opines, Oriental Bittersweet is doing what comes naturally: It’s responding to what people do to their environment, a fact pretty-much always overlooked by nativists in their diatribes.

 

Disturbed soil is part and parcel of home sites, fields and fencerows created by people to grow crops, roadways because you can’t make a road without disturbing the land, and forests throughout the Blue Ridge because these mountains were denuded by logging—more than once in the history of the country.

 

And let’s not overlook another fact: People intentionally brought bittersweet here to grow in their gardens. This species is not the “invader” suggested by use of the term “invasive”. It should more accurately be described as an escapee.

 

Is bittersweet problematic? This question can’t be answered by a simple “yes” or “no” because the answer depends completely upon a person’s point of view, which is dependent upon what is most important to him.

 

For the person (such as I) who truly cares about wildlife and disappearing habitat in developed areas, the answer is no. Because most folks maintain very few plants around their homes (and even farms nowadays), there’s not much available for animals (especially birds) in need of food, shelter and nesting sites. Bittersweet that has climbed high into a tree on the edge of someone’s property or along roadways provides these necessities that are absent from most yards (and farms).

 

Does it matter if the vine’s presence kills the tree? In the natural world, there is nothing sacrosanct about a tree, and from the human perspective of someone who wants to help our feathered creatures, it shouldn’t be a problem either if the vine is providing more for wildlife than the tree does.

 

Now, if you’re managing a forest for lumber, your perspective is totally different. Since you look at every tree as a source of income, you want what’s best for your purposes rather than what’s best for wildlife.

 

And what if you’re an environmentalist who wants the natural world to more closely resemble its former self before Europeans arrived? Well, that’s a fantasy that can never become reality. Yes, you can work endlessly on your (and perhaps others’) property to get rid of the many plants people brought here some time ago, but the cat’s out of the bag. It’s a waste of your life, especially if your efforts don’t improve living conditions for wildlife, the main reason often given for “invasive-plant” removal. And if you’re employing pesticides that poison the Earth to accomplish this goal, you’re just adding insult to injury.

Lastly, I’ve been asked if I would be unhappy if a neighbor planted Oriental Bittersweet along my property line where it could spread onto my land. Mother Nature—who’s certainly a neighbor—has done just that, as I find this vine growing here and there around my yard. As it has yet to show up where I could let it grow without it being a problem for my preferred plants, I pull it out if it’s small enough and persistently cut it if it isn’t (so it can’t flower).

 

Gardening is the perpetual process of making decisions about which plants you want to encourage and which you don’t. Anyone who thinks otherwise is fooling himself.

 

NATURE ADVICE:

 

If you believe poisoning (pesticiding) our environment is better than allowing so-called invasive plants to grow, you really ought to rethink your perspective. Instead of buying into denunciations of these plants, get out into the world and observe it carefully with an open mind that will allow you to recognize the truth: The presence of nonnative plants that assist wildlife to survive is far better than the barren area that’s typically left when people remove “invasives”.

 

Few people make an effort to replace the plants removed because they mistakenly believe native plants will (magically) show up. It's possible they might, but the usual reason “invasive” plants grow where they do is because they are more suited than native plants to the environmental conditions in these locations.