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Joe Pye Weed
PEI’s late summer landscape belongs to the Aster Family: yellow Goldenrods, purple Asters, and – one of my personal favourites – pink Joe Pye Weed (Eutrochium maculatum). There are five Joe Pye species in North America, but Spotted Joe Pye Weed, shown here, is the only one we have on the Island. This plant can be found across the province, though I see it far more commonly in Prince County, where it grows in damp roadside ditches, meadows, and coastal areas. Spotted Joe Pye
katemacquarrie22
2 days ago2 min read


Crab Apples
One of the most common questions I’m asked this time of year is: what are these berries on my tree? In many cases, the answer is Crab Apples (Malus spp.)! On PEI (and probably elsewhere), it’s common to call any wild Apple a Crab Apple. But technically, a Crab Apple tree consistently produces fruit less than five centimetres (two inches) in diameter at maturity. That means most or all of the fruit is that size, every year. A tree sporting Apples in a variety of sizes, or la
katemacquarrie22
5 days ago2 min read


Staghorn Sumac
The Mi’kmaq have a name for each full moon of the celestial calendar, with August’s being the Berry Ripening Moon (Kisikewiku’s, pronounced gis-ig-ay-we-goos). This is indeed peak berry season on PEI, with SO many wild fruits on offer right now. But there’s one you may have overlooked: Staghorn Sumac (Rhus typhina). Staghorn Sumac is native to the Island, and was also used as an ornamental, meaning it can be found around towns, cities, and rural homesteads. It’s a beautiful
katemacquarrie22
Aug 262 min read


Sea Stars
PEI has many interesting wild animals, but some of the most beautiful – and unusual – are Sea Stars, often called Starfish. The waters around PEI are home to at least five species, including the Common Sea Star (Asterias rubens) and Forbes Sea Star (A. forbesi). It’s not hard to see where these invertebrates get their name: ask any kindergartener to draw a star, and you’ll get something that resembles this five-pointed shape. While our most common Sea Stars do have five arm
katemacquarrie22
Aug 232 min read


Goldthread
Today’s PEI plant epitomizes the saying ‘big things come in small packages’. Meet Goldthread (Coptis trifolia). Goldthread is a member of the Buttercup family (Ranunculaceae) and is common, though often overlooked, in mossy woodlands across the Island. Its delicate white flower (inset photo) – just a centimetre across and appearing for short time in May – is easily missed. Even the small, three-parted leaves usually go unnoticed unless you’re specifically looking for them,
katemacquarrie22
Aug 92 min read


Foxtail Barley
As fields of grain ripen across PEI, you may have noticed a similar, though smaller, plant growing along roadsides, coastlines, and trails. Although this plant hangs out in human habitats and looks like it may have escaped from farms or gardens, it’s actually a native species: meet Foxtail Barley (Hordeum jubatum). Like our agricultural grains, Foxtail Barley is a member of the grass family (Poaceae). It’s in the same genus as the commercial Barley you may enjoy in breakfas
katemacquarrie22
Aug 22 min read


Bittersweet Nightshade
Today’s PEI plant is one that I’ve received many questions about, along with a request to do a post on it. So, meet Bittersweet Nightshade (Solanum dulcamera)! If these flowers remind you of tomato or potato blossoms, give yourself a gold star. Bittersweet Nightshade is in the same family (and the same genus) as those domestic crops, and is related to other familiar species including eggplant, peppers (both sweet and hot), gogi berries, and tobacco. Bittersweet Nightshade
katemacquarrie22
Jul 292 min read


Red-mouth Bolete
I love meeting a new-to-me mushroom, and so was quite happy when I found these among my favourite patch of King Boletes (aka Porcini) last week. Meet the aptly named Red-mouth Bolete (Neoboletus subvelutipes). Followers of this page will know that mushrooms with spongy pores rather than gills, folds, or teeth under the cap are boletes. (Not all boletes have spongy pores, but mushrooms that do are boletes. And if you haven’t been following this page, you can get caught up on
katemacquarrie22
Jul 52 min read


Is this edible?
This year’s damp weather may not be popular with everyone, but it has been great for mushrooms! The abundance of fruiting fungi has brought out a crop of social media posts asking about edibility. Here are some tips to help you ask the right questions and get reliable answers! I love encouraging people to try wild plants and fungi, but I cringe every time someone asks “is this edible?” That should never be your first question; instead, start with “what is this, and how can I
katemacquarrie22
Jun 262 min read


Virginia Ctenucha
Welcome to Insect Appreciation Days, celebrated from June 8 – 13th annually, thanks to the Entomological Society of Canada. And what better insect to profile than PEI’s most commonly-reported moth, the Virginia Ctenucha (Ctenucha virginica)! First, what’s up with that name? Ctenucha (ten-OOO-sha) comes from a Greek word for ‘comb’, and refers to the feathery, comb-like antennae of the male moths. (The individual shown here is a female, with more wiry, less feathery antennae
katemacquarrie22
Jun 72 min read


Eelgrass
There’s one PEI plant that most people are very familiar with, but few have seen growing in its natural habitat: Eelgrass (Zostera marina). This is how most of us know Eelgrass: washed up along the shore. Eelgrass actually grows in extensive beds offshore as well as in our bays and estuaries, and – despite what you may think – it’s a true flowering plant and not a seaweed. Eelgrass has roots, stems, leaves, flowers, and vascular tissue (structures that move water and nutr
katemacquarrie22
May 62 min read


Black Knot Fungus
This is a great time of year to spot a PEI fungust that's best known as a disease of Cherry trees: Black Knot ( Apiosporina morbosa ). Black Knot fungus forms distinctive, black galls on stems and branches of our native Pin Cherry and Chokecherry, as well as ornamental Cherries and Plums. While it’s unattractive, reduces fruit production, and may kill the infected branch, Black Knot doesn’t usually kill the entire tree unless the infection is very severe. Within those black
katemacquarrie22
Apr 122 min read


Flying Squirrels
One of my favourite PEI animals is seldom seen despite being fairly common: the Northern Flying Squirrel ( Glaucomys sabrinus ), shown here in a photo by Ron Serres (used with permission). Flying Squirrels are beautiful, large-eyed, soft-furred animals, with a flap of skin (called a ‘patagium’) running from wrists to ankles on each side. That flap allows them to glide 50 metres or more between trees in the forest and has been copied by the wingsuits used by some BASE jumpe
katemacquarrie22
Apr 22 min read


Lung Lichen
You may think there’s no old growth forest or wilderness on PEI, but that’s not true. We have amazing ancient and wild spaces if you know where to look and can recognize the signs. Lung Lichen ( Lobaria pulmonaria ) is one of those signs. A lichen is a unique creature: usually, it’s a combination of a fungus and an alga or cyanobacterium functioning as one organism. But Lung Lichen is one PEI’s few tripartite lichens: it includes a fungus, a green alga, and a cyanobacter
katemacquarrie22
Mar 292 min read


Snake Tracks
We’ve reached that time of year when my weekly posts switch from plants and fungi to wildlife tracks and sign. Here’s a nice reminder that not all tracks are made by feet! The dry summer weather made for great tracking conditions along PEI’s unpaved roads. This site near Mount Stewart had all sorts of footprints from insects, birds, and mammals, along with the unmistakable undulating trail of a snake. The size of the snake track told me which of our three species was the culp
katemacquarrie22
Dec 3, 20252 min read


Northern Tooth
Welcome to the final Mushroom Monday of 2025. We’ll end with a large and easy-to-identify species that hasn’t been recorded all that often on the Island: Northern Tooth ( Climacodon septentrionalis ). As we’ve seen throughout this series, mushrooms come in all shapes and sizes, and can share physical traits without being closely related. The spore-bearing surface of Northern Tooth has spine-like ‘teeth’ rather than gills, folds, or pores (inset photo). Despite this, it is m
katemacquarrie22
Nov 30, 20253 min read


Slippery Jacks
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Today we have not one species but a whole group that’s both reasonably easy to identify and edible: Suillus species, many of which are called Slippery Jacks. The first thing you’ll notice about a Slippery Jack is the feature that gives it that common name: a somewhat slimy or sticky cap. These mushrooms do indeed look slippery, especially after rain. Peek under that cap and you’ll see Slip
katemacquarrie22
Nov 23, 20253 min read


Cocklebur
If I had to design vegetation for a movie set on an alien planet, I’d take inspiration from this PEI plant: the odd-looking Rough Cocklebur ( Xanthium strumarium ). Cocklebur gets its name from spine-covered fruit (burs) that look a bit like Burdocks but have two distinctive beaks at the end (inset photo). Like Burdock ( Arctium minus ), Cocklebur’s Velcro-like fruits are distributed by hitch-hiking on animals, including humans. Those burs also float, allowing them to be r
katemacquarrie22
Nov 19, 20252 min read


Orange Peel Fungus
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. Not all mushrooms have the cap-and-stem look we tend to expect, and today’s species is a well-named example of a different format: meet Orange Peel Fungus ( Aleuria aurantia ). Orange Peel Fungus is one of the cup fungi, similar to the Scarlet Elfcup we looked at last spring (you can find it here: https://www.pei-untamed.com/post/scarlet-elf-cups ). Orange Peel Fungus’ most eye-catching feat
katemacquarrie22
Nov 16, 20252 min read


Shaggy Parasols
Welcome back to Mushroom Monday, your weekly look at some of PEI’s fascinating fungi. I taste-tested today’s species for the first time this year, and it’s now among my favourite edible wild mushrooms. Meet the Olive Shaggy Parasol ( Chlorophyllum olivieri ). Shaggy Parasols are large, eye-catching mushrooms that can be found in grassy, open areas as well as in forests (especially under Spruce). Field guides often list them as lookalikes for edible Shaggy Manes, but they’re n
katemacquarrie22
Nov 9, 20252 min read
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