Botany

Weed Is A Weed Is A Weed

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Weeds are classified subject to norms, we have read; thanks to Rivka Galchen for reminding us, and reference to this book:

What Is a Weed?

The names we call plants say more about us than they do about the greenery that surrounds us.

Steve Brill’s first stop was the greenery behind the bike racks. Brill, who is known as Wildman Steve, picked up a weed with heart-shaped seed pods and a small, four-petalled white flower. About thirty of us were gathered for a three-hour foraging tour through Prospect Park, in Brooklyn.

Illustration by Karlotta Freier

The plant was shepherd’s purse, a name that references the seed pods’ resemblance to the containers shepherds used to make from the bladders of sheep. “It’s in the mustard family,” Brill said. “Most all of the flowers in the mustard family are four petals in the shape of a cross.” He encouraged everyone to take a bite, and to tell him what vegetable it tasted like. Continue reading →

Planting For Foraging

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Picking too many fiddleheads from a single ostrich fern plant can reduce its productivity. Jared Rosenbaum, a field botanist, never harvests more than one or two from any individual plant. (Also, cooking with fiddleheads can be toxic, so be sure to wash them well and never eat them raw: Always boil them before you sauté or cook them in any other way.) Jared Rosenbaum/Wild Ridge Plants

Margaret Roach delivers the goods when we need a dose of useful plant life information:

Why It’s Better to Plant Wild Greens Than to Forage for Them

This spring, don’t forage for wild edible plants. Instead, welcome them into your garden.

Jared Rosenbaum knows the primal thrill of foraging — a sense of interdependence with the natural world that he wants his son to experience, too.

But as a field botanist, he also understands that foraging is one of the many pressures on native-plant populations. And he has a proposition for gardeners: What if we gave back to the wild edible plants that tempt us on our springtime woodland hikes, by welcoming them into the landscapes we cultivate?

For a fleeting moment each spring, wild leeks (otherwise known as ramps) are a star of restaurant menus, creating a demand that has intensified the pressure on wild populations. Jared Rosenbaum/Wild Ridge Plants

It’s one layer of the habitat restoration and ecological design inspiration that he and his wife, Rachel Mackow, provide to clients of Wild Ridge Plants, in rural Pohatcong Township, N.J. And it’s reflected in many of their mail-order nursery’s plant choices, too.

In Mr. Rosenbaum’s recent book, “Wild Plant Culture: A Guide to Restoring Edible and Medicinal Native Plant Communities,” he revisits that idea: “The time has come to reconnect with our habitats, right where we live, work, and play,” he writes. “Not as museum pieces, but as vital, sustaining elements in our lives, livelihoods, and lifeways.”

That includes our gardens. Continue reading →

UK Plant Prospecting & iNaturalist

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While once gardening was somewhat of a battle against nature, people are now working with native plants and animals. Photograph: Kathy deWitt/Alamy

We are happy to see citizen scientists putting this technology to such use anywhere, but particularly gratified to know that a large organization is encouraging its use for such an important initiative:

RHS asks gardeners to find interesting ‘weeds’ that may be rare plants

People urged to submit specimens to an app as private gardens may be fresh source of scientific discovery

Record the “weeds” that pop up in your garden because they could be a rare plant, the Royal Horticultural Society has said. Continue reading →

Aeon & The Rise Of Maize In Asia

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On the outskirts of Kunming, the capital of Yunnan province in southwestern China, 6 November 2006. Photo by stringer/Reuters

Aeon was a regular source of excellent ideas and information during our first few years, and we are happy to see it again:

Maize is arguably the single most important crop in the world and is rivalled only by soybeans in terms of versatility. That said, it is, along with sugar cane and palm oil, among the most controversial crops, proving particularly so to critics of industrial agriculture. Although maize is usually associated with the Western world, it has played a prominent role in Asia for a long time, and, in recent decades, its importance in Asia has soared. For better or worse, or more likely for better and worse, its role in Asia seems to be following the Western script. Continue reading →

What To Do With A Tenner

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‘In the woods, there will be much more fungi and even more colour: scarlet elf cup (above), orange witches’ butter, yellow stagshorn, green elf cup, blue roundheads.’ Photograph: fotoco-istock/Getty Images/iStockphoto

This recommendation from Lucy Jones is as good as any we might otherwise recommend:

‘Wet weather makes for particularly juicy moss.’ Water droplets on moss on a wall. Photograph: Niall Carson/PA

The winter world may seem gloomy – but look closely, and you’ll see nature casting a spell

For less than a tenner, do as I do: buy a hand lens, head outside and discover fungi and moulds lighting up the darkness

‘You won’t believe how exquisite slime moulds are.’ Photograph: Alastair Hotchkiss/Woodland Trust/PA

The profound therapeutic benefits of connecting with nature and spending time outside are well known. But in winter? When it’s cold, gloomy and everything looks dead? In fact, especially in the winter, when we are susceptible to fatigue, illness and seasonal low mood. And actually there is plenty of life, beauty and wonder right outside our doors, if we look closely.

Come and take a short walk with me in my nearest wild patch – an urban cemetery, a common environment across the British Isles. Continue reading →

Fungi Lost & Found

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The sculptured toadstool (Amanita sculpta) had not been seen in Singapore for more than 80 years. Photograph: Adrian Loo/National Parks Board of Singapore

Over our nearly dozen years linking to stories we have shared plenty of what we have called lost and found stories (including this and this and this, and this), as well as fungi stories too numerous to link back to, this is the first lost and found fungi story:

Lost and found: how a Facebook post led to the ‘chocolate chip’ toadstool

The sighting of a ‘magnificent’ specimen of the Amanita sculpta, not seen in Singapore for 80 years, shows how the public can aid in conservation efforts

The cap is like a chocolate chip cookie,” says Serena Lee, senior manager at Singapore Botanic Gardens’ herbarium, describing the top of the sculptured toadstool (Amanita sculpta). Continue reading →

Peanuts, Soil Regeneration & Coffee

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I will not blame Ruby Tandoh for the link to the predatory bookseller in her essay; the magazine she writes for is responsible. Instead, I will just put a better link from the book image on the left to where you might purchase it. Bringing our attention to the book is enough of a good deed to overlook that link. Especially as I work on finding new ways to fix nitrogen in the soil we are prepping for coffee planting:

The Possibilities of the Peanut

I’ve made salads of peanut with watermelon and sumac, fries dunked in garlic-scented satay sauce, and more variations on my aunt’s Ghanaian groundnut stew than I can remember.

Illustration by Sophia Pappas

It would be hard to find a more devoted champion of the peanut than the agricultural scientist George Washington Carver. Born into slavery in Missouri around 1864, Carver studied at Iowa State University and then taught at the Tuskegee Institute, where he would spend much of the rest of his life learning to repair the environmental damage wrought by intensive cotton farming. Continue reading →

Banana Genome Science

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Imagine if you had all of these bananas to pick from every day. Beatrice Sirinuntananon/Shutterstock

We did not search for banana ancestors while living in India. We just found as many varietals as we could to support the genetic stock. I have remained interested in doing the same ever since. They are more versatile than most people are aware, so the outcome of this scientific search matters:

Red or blue, squat or bulbous, seeded or seedless: Bananas have a lot of diversity and scientists have identified genetic signals of varieties that have not yet been found in the wild. guentermanaus/Shutterstock

The Search Is on for Mysterious Banana Ancestors

A new study shows that domesticated bananas have genetic markers tying them to three types of wild bananas that have not yet been found.

Bananas, it turns out, are not what we thought they were.

Sure, most, when ripe, are yellow and sweet and delicious slathered in peanut butter. Continue reading →

Infinity Trees

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The trees, according to the ecologist Constance Millar, give you a “sense of infinity.” Photo by Adam Perez

We know that getting to a trillion trees is a stretch, but we might be able to sense infinity from a certain species of tree, according to Soumya Karlamangla in the New York Times article we link to here. Photos by Adam Perez help alot.

Bristlecone pines can live and reproduce even with only one branch of needles. Photo by Adam Perez

Historically I have worked to find my personal sense of infinity deep within tropical forests, but reading this and seeing the photos of these trees in a totally different type of ecysystem I can be convinced that it is elsewhere also:

In California, Where Trees Are King, One Hardy Pine Has Survived for 4,800 Years

In a harsh alpine desert, the Great Basin bristlecone pines abide amid climate change. Among them is the oldest tree on Earth (if you can find it).

Great Basin bristlecone pine trees endure in harsh conditions that other vegetation cannot withstand. Photo by Adam Perez

BISHOP, Calif. — Before the Egyptians built the Pyramids, before Jesus Christ was born, before the Roman Empire formed or collapsed, the trees were here.

Ten thousand feet up in the White Mountains of central California, in a harsh alpine desert where little else survives, groves of gnarled, majestic Great Basin bristlecone pines endure, some for nearly 5,000 years. Their multicolor trunks bend at gravity-defying angles, and their bare branches jut toward the sky, as if plucked from the imaginations of Tim Burton or J.K. Rowling.

These ancient organisms, generally considered the oldest trees on Earth, seem to have escaped the stringent laws of nature. Continue reading →

I Will Not Panic Over Leafminers

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Charley Eiseman, a naturalist who conducts biodiversity surveys for conservation groups, became interested in leaf mines because of patterns like this one. It’s the handiwork of the moth Phyllocnistis populiella in a quaking aspen leaf (Populus tremuloides).

As soon as the sun is up, most days, I am outside. Even after 22 years working on this property I find surprises constantly. When Margaret Roach writes, I read; when she offers visual cues to complement her clear writing, all the better:

Leaf mines on columbine (Aquilegia) can be serpentine squiggles or blotches. Larvae of flies in the genus Phytomyza make these familiar markings when they feed between a leaf’s epidermal layers. Margaret Roach

Don’t jump to the conclusion that those mysterious marks are evidence of disease. They may be leaf mines or galls — and that’s a good thing.

During the early days of the coronavirus pandemic, some of us mastered bread-baking (if we could get our hands on flour) or devoted ourselves to nurturing some new mail-order houseplant. Continue reading →

Alerce, Fungi & Futures

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Roots rise from shallow soil. Tomás Munita

The Valdivian Coastal Reserve was mentioned once in our pages, only in passing.

Tomás Munita

Strange, because if I was asked to name my favorite protected area on the planet it would be at or near the top of my list. The abundant but threatened alerce trees were part of the reason. A family story would explain more of why, and that is part of a larger work story that needs more attention another time.

A mushroom rises from the forest floor. Tomás Munita

The story below, featuring an adjacent protected area, stirs an intense place memory, and at the same time reveals much about a topic that was not on our radar at the time. And it says much about potential futures for that place. So, thanks to the New York Times climate correspondent Somini Sengupta (again and again) as well as photographer Tomás Munita:

Unearthing the Secret Superpowers of Fungus

Tomás Munita

In the fight against warming, a formidable ally hides just beneath our feet.

ALERCE COSTERO NATIONAL PARK, Chile — Toby Kiers took long strides across the spongy forest floor, felt the adrenaline rush in her veins and stopped at the spot she had traveled so far to reach. Into the ground went a hollow metal cylinder. Out came a scoop of soil.

Tomás Munita

Dr. Kiers stuck her nose into the dirt, inhaled its scent, imagined what secrets it contained to help us live on a hotter planet. “What’s under here?” she asked. “What mysteries are we going to unveil?”

The soil was deposited into a clear plastic bag, then labeled with the coordinates of this exact location on Earth. Continue reading →

Orchid Hunters Teaching Their Craft

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Orchid enthusiasts on the hunt at Noar Hill. Photograph: Peter Flude/The Guardian

We feature stories involving orchids whenever there is something new to learn:

Bersweden stops to smell a musk orchid at Noar Hill. Photograph: Peter Flude/The Guardian

‘Like stroppy teenagers’: the joy of hunting devious and demanding orchids

For British botanist Leif Bersweden, finding an orchid is ‘pure joy’ and one that he is happy to share with fellow enthusiasts as they scour a nature reserve in Hampshire

It’s a Friday, and half a dozen retirees are scouring the ground for flowers. Continue reading →

Trees & Careful Planting

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Fast-to-establish sassafras (Sassafras albidum), an Eastern native tree, has distinctively shaped leaves that fire up brilliantly in autumn. Michael Stewart/Courtesy Brooklyn Botanic Garden

One of the minor downsides to life in the tropics is decades of missed autumn leaves. But that downside is counterbalanced by so many upsides that the loss is trivial. And we have photos like the one to the right, as well as the possibility of travel (including to the botanical gardens featured in the story below), plus plenty of writing on the science of those colors, to dissipate the trivia.

Mr. Roddick is often asked to open up a tree’s canopy to let in more light. His answer is based on the tree’s species, its health and its age. “Better to train a young tree to fit into a garden as opposed to trying to change an old tree,” he said. Michael Stewart/Courtesy Brooklyn Botanic Garden

Besides, our trees are awesome for reasons other than color. They grow fast. Some of them fix nitrogen. And most of those we have been planting have a shading responsibility specific to the coffee we are planting. So this article resonates even if some of the particulars are not relevant to our land, trees, and related growing conditions. Margaret Roach has been a constant companion reminding me of all this, through her writings mainly on gardens in the north.

The base of an old London plane tree at Brooklyn Botanic Garden. Tree roots on most landscape trees are shallow and prone to injury, yet we often fail to consider how our gardening and home-improvement projects will affect them. Michael Stewart/Courtesy Brooklyn Botanic Garden

Trees can take a lot of punishment, but they have their limits. Here’s how to work around them safely.

If trees could talk, they’d probably start by saying, “Enough with the insults already.”

In more than 30 years of working with trees, Christopher Roddick has made it a practice to listen to their unspoken language — and to show respect for some of the largest and oldest organisms among us. Continue reading →

Orchidelirium Anew

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Burnt tip orchids. At least 10 vanished from a national nature reserve at Mount Caburn, East Sussex. Photograph: Katewarn Images/Alamy

Susan Orlean brought orchidelirium to our attention in 1999, shining a light on how and why these flowers inspire lots of good, and plenty of bad behavior. Orchids have been abundant in our pages over the years for various reasons, most recently due to a show; today due to criminal enterprise:

Spate of orchid thefts in England puts rare species at risk

Experts believe plants in Sussex and Kent were ‘stolen to order’

Hardy Orchid Society Replying to @HardyOrchidSoc This is what you should have seen. If you have any information that can help in the investigation please contact @kentpolice @BBCNews

A spate of thefts of rare orchids from sites in southern England has concerned scientists, who say endangered species may be at risk.

Orchid experts believe that the plants, from locations including in Sussex and Kent, may have been “stolen to order”.

Conservationists at the Sussex Wildlife Trust were dismayed last week to hear of at least 10 burnt-tip orchids missing from a national nature reserve at Mount Caburn, while in Kent the Hardy Orchid Society reported that 30 late spider orchids had been taken from a site in Folkestone.

Neil Evans, of the Hardy Orchid Society, said: “The theft represents a major loss to the population. They are only found in this country in a few sites in Kent.” Continue reading →

Biggest Plant On Earth

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The Posidonia australis seagrass meadow in Shark Bay, Western Australia. Photograph: Rachel Austin/UWA

We have posted several times about the world’s largest living thing. Since fungi are a different category of life, that leaves room for something to be classified as the largest living plant. Thanks to Graham Readfearn for this Guardian article pointing out to us what that thing is, and where:

The plant’s spread can be seen in this aerial view of Shark Bay. Photograph: Angela Rossen

Scientists discover ‘biggest plant on Earth’ off Western Australian coast

Genetic testing has determined a single 4,500-year-old seagrass may have spread over 200 sq km of underwater seafloor – about 20,000 football fields

About 4,500 years ago, a single seed – spawned from two different seagrass species – found itself nestled in a favourable spot somewhere in what is now known as Shark Bay, just off Australia’s west coast. Continue reading →

Microfauna, Microbiota & Other Wonders Of Soil

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When a plant root pushes into soil, it triggers an explosion of activity in billions of bacteria. Photograph: Liz McBurney/The Guardian

I used the word microflora in the title of a post I wrote 3+ years ago, and today I learned something that serves as a correction. I used that word to distinguish from the better known charisma of megafauna. But there is a better word I should have used in that title, so I am using it in the title of today’s post. The word microbiota has made a few fleeting appearances in our pages, buried in the text of scientific explanations. This editorial by George Monbiot got me to look up the word microflora and from now on I will avoid the misnomer:

The secret world beneath our feet is mind-blowing – and the key to our planet’s future

Don’t dismiss soil: its unknowable wonders could ensure the survival of our species

Beneath our feet is an ecosystem so astonishing that it tests the limits of our imagination. It’s as diverse as a rainforest or a coral reef. We depend on it for 99% of our food, yet we scarcely know it. Soil. Continue reading →

More On Seed Banks

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We have featured these banks before, but they are worthy of a more detailed inside look.

So, thanks to by Salomé Gómez-Upegui, Rita Liu and the Guardian. Their article, Seed banks: the last line of defense against a threatening global food crisis is full of images and written descriptions that put these banks in better perspective:

As climate breakdown and worldwide conflict continue to place the food system at risk, seed banks from the Arctic to Lebanon try to safeguard

As the risks from the climate crisis and global conflict increase, seed banks are increasingly considered a priceless resource that could one day prevent a worldwide food crisis. Continue reading →

If You Happen To Be In New York City

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If you have are in New York City with some time on your hands, immerse yourself in The Orchid Show: Jeff Leatham’s Kaleidoscope .

We who live in Costa Rica, or other places where orchids are abundant, are fortunate but can only dream of this sort of abundance on display in one location:

February 26 – May 1, 2022

10 a.m. – 6 p.m. | At the Garden

Experience Famed Designer Jeff Leatham’s Bold and Colorful Vision

The dazzling floral creations of Jeff Leatham, famed artistic director of the Four Seasons Hotel George V in Paris and floral designer to the stars, return for The Orchid Show’s 19th year. Continue reading →

Writing About The Banda Islands & Nutmeg & Us

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Around the time we shared a book review of Amitav Ghosh’s most recent work he gave a lecture about the Banda Islands, explaining the relationship between nutmeg and our current challenges related to climate change. It includes conversation with his host, a professor of creative writing, who draws out of Ghosh on his writing process.

The best part of the lecture is about half way through, when Ghosh talks about the agency of botanicals, a topic that many of us first encountered in the writings of Michael Pollan. Thanks to Rhoda Feng for giving Ghosh’s book another review, which led me to find the video above:

A SMALL BUT INCREDIBLY VALUABLE NUT

At the end of Amitav Ghosh’s SEA OF POPPIES (2008), a character reflects on how her life has been governed not by the sign of Saturn but by the poppy seed. Offering a seed to her lover, she says: ‘Here, taste it. It is the star that took us from our homes and put us on this ship. It is the planet that rules our destiny.’ SEA OF POPPIES is part of the Ibis trilogy by Ghosh – followed by RIVER OF SMOKE (2011) and FLOOD OF FIRE (2015) – about the nineteenth-century Anglo-Chinese Opium Wars. Continue reading →