The Consequences Of Allowing Taxonomy To Falter Are Significant. Every Year, Botanists Around The World

Spring Woodland Flowers of Illinois poster by Robert F. Eschenfeldt (1930-2005)

I'm slowly collecting these gorgeous posters from the 70s/80s that the Department of Natural Resources put out. I've had luck with nature centers digging in their back closets

This is probably my favorite hellebore. Vigorous and prolific with a lovely dark purple color. 

I have a few seedlings of it and it will be interesting to see what they look like in a few years.

THE OLD FRIENDSHIP OF BLUEBERRIES AND SWEET FERN:

"In the time before refrigeration, Ojibwe folks kept their blueberry harvest fresh by lining their birchbark storage containers with a plant called sweet fern that often grows right alongside blueberry bushes!

The leaves of sweet fern produce a compound called gallic acid, which is a potent anti-microbial and keeps harmful bacteria like salmonella from growing on the berries.

It's name in the Ojibwe dialect I've learned is "giba`iganiminzh" meaning "it covers the berries" because of this usage and its contribution to keeping the precious staple food of minan (blueberries) fresh!

I don't use a birchbark container but I do pop a few sprigs of sweet fern into my gathering bag when out picking and then into my tupperware when storing berries to remember and utilize the gifts of this wonderful plant!

(Sweet fern can also be used as a medicinal tea to help the intestines and colon! And when added to a fire, the smoke will help keep away mosquitos and horse flies--in addition to smelling lovely!)" - The Native Nations Museum, founded by Chippewa Bonnie Jones

Edward S. Casey & Michael Marder, Plants in Place: A Phenomenology of the Vegetal (2024)

I learned that the fruit of the [mesquite] tree was one of many in our landscape that had evolved to be eaten by the giant mammals who disappeared from this continent not long after humans showed up, one of those factual nuggets that punctuate a truth about the deep history of the Anthropocene in ways reading alone cannot. […] [W]e will soon need to learn not to take for granted things like the wild food that goes uneaten due to the absence of the animals whose extinction our dominion coincided with.

I wonder what kind of cake we will make, if we have to make it from the fruit of the old tree that grew up in the brownfield.

Christopher Brown, A Natural History of Vacant Lots: Field Notes from Urban Edgelands, Back Alleys, and Other Wild Places (2024)

Ghost Pipe Monotropa uniflora

"Unlike most plants, it is white and does not contain chlorophyll. Instead of generating food using the energy from sunlight, it is parasitic, and more specifically a mycoheterotroph. Its hosts are in the Russulaceae family. Most fungi are mycorrhizal. Meaning, through the fungal web of mycorrhizae the M. uniflora roots ultimately sap food from where the host fungi are connected to the photosynthetic trees. The clustered node roots of this plant are covered in hairs called cystidium. The cystidia found on these roots allow easy attachment to fungi hyphae, such as can be seen in ectomycorrhiza. Since it is not dependent on sunlight to grow, it can grow in very dark environments like in the understory of dense forests. The complex relationship that allows this plant to grow makes propagation difficult."

Striped bark maples which give good all season interest and I went on a buying spree 20-30 years ago. Bark in general is really undervalued in gardens as a feature.

Ok but can we talk about non-native and invasive species in a nuanced way?

There’s more to this topic than ‘native = good’ and ‘non-native = invasive and therefore bad’. I also see horrible analogies with human immigration, which…no. Just no. 

Let’s sit back and learn about species and how they work inside and outside their native ranges! Presented by: someone who studied ecology.

Broadly speaking, when talking about species in an ecosystem, we can divide them into four categories: native non-invasive, non-native, non-native invasive, and native invasive.

Because ‘native’ and ‘invasive’ are two different things. 

Native and non-native refers to the natural range of a species: where it is found without human intervention. Is it there on its own, or did it arrive in a place because of human activity?

Non-invasive and invasive refers to how it interacts with its ecosystem. A non-invasive species slots in nicely. It has its niche, it is able to survive and thrive, and its presence does not threaten the ecosystem as a whole. An invasive species, on the other hand, survives, thrives, and threatens the balance of an ecosystem. 

Let’s have some examples! (mostly featuring North America, because that’s the region I’m most familiar with)

Native Non-invasive

Native bees! Bee species (may be social or solitary) that pollinate plants.

And stopping here bc I think we get the point.

Non-native

Common Dandelion: Introduced from Europe. Considered an agricultural weed, but does no harm to the North American ecosystem. Used as a food source by many insects and animals. Is prolific, but does not force other species out.

European Honeybee: Introduced from Eurasia. Massively important insect for agricultural pollination. Can compete with native pollinators but does not usually out compete them.

Non-native Invasive

Emerald Ash Borer: Beetle introduced from Asia. In places where it is non-native, it is incredibly destructive to ash trees (in its native range, predators and resistant trees keep it in check). It threatens North America’s entire ash population.

Hydrilla: An Old World aquatic plant introduced to North America. Aggressively displaces native plant species, and can interfere with fish spawning areas and bird feeding areas. 

Native Invasive

White Tailed Deer: Local extinction of the deer’s predators caused a massive population boom. Overgrazing by large deer populations has significantly changed the landscape, preventing forests from maturing and altering the species composition of an area. Regulated hunting keeps deer populations managed.

Sea Urchins: The fur trade nearly wiped out the sea otters that eat them. Without sea otters to keep urchin populations in check, sea urchins overgrazed on kelp forests, leading to the destruction and loss of kelp and habitat. Sea otter conservation has helped control urchin populations, and keeps the kelp forest habitat healthy.

—

There are a few common threads here:

The first is that human activities wind up causing most ecosystem damage. We introduce species. We disrupt food chains. We try to force human moral values onto ecosystems and species. And when we make a mistake, it’s up to us to mitigate or reverse the damage.

The second is that human moral values really cannot be applied to ecosystems. There are no ‘good’ or ‘bad’ species. Every species has its place. Applying emotional and moral rhetoric to ecology works against our understanding of how our ecosystems work. 

Third: the topic of invasive and non-native species is more complex than most of the dialogue surrounding it. Let’s elevate our discussions.

Fourth: If you ever compare immigrants or minorities to invasive species, I will end you.

There are more nuances to this topic than I presented as well! This is not meant to be a deep dive, but a primer.

Birders: do you ever wonder if this happens?

Original on my site | Patreon