Fruit of the pong-pong tree (Cerbera odollam)

Cerbera odollam: “The Suicide Tree” That Harms and Heals

Even before The White Lotus, people feared the poisonous pong-pong tree, Cerbera odollam. But there's another way to look at the plant and its effects.
Foliage of Acacia Senegal (Senegalia Senegal).

Acacia: A Legacy of Artistry and Extraction

The thorny Acacia tree produces gum arabic, a versatile substance that’s been driving global trade for centuries.
Sugar maple (Acer saccharum) in The North American Sylva by François André Michaux. Illustration by Henri-Joseph Redouté, 1819.

Tradition in Turmoil: Sugar Maple and Climate Change

With harvests dependent on the spring freeze-thaw cycle, the maple industry is seeking ways to mitigate damage wrought by a changing climate.
Aconitum napellus

Wolfsbane: A Poisonous Beauty

With a complex history related to hunting, magic, and madness, wolfsbane offers a glimpse into vernacular plant names and their associations with animals.
Breadfruit (Artocarpus altilis): fruiting branch. Coloured etching by J. Pass, c. 1796, after J. Ihle.

Quintessential Resilience: The Breadfruit in the Caribbean

The breadfruit tree has coexisted with humans for more than three thousand years. Its future may depend on how strong of an ally humans can become to it.
Rosemary (Salvia rosmarinus) in bloom. Flowers can be pale blue, pink, purple, or white.

Rosemary: The Herb of Ritual and Remembrance

From ancient Egypt to today, the scent of rosemary has promised comfort, joy, and even immortality.
A cluster of Azolla filiculoides plants.

Azolla filiculoides: Balancing Environmental Promise and Peril

One of the world’s tiniest fern species, Azolla filiculoides may be one of our greatest tools for lowering agricultural pollution and greenhouse gas emissions.
Monotropa uniflora in bloom by Nichole Ouellette

Ghost of the Forest: Monotropa uniflora

Look for this other-worldly plant in moist, shaded areas of mature forests throughout much of North America, East Asia, and northern South America.
"Fresh, red cloves grow on the branch, green leaves. Zanzibar, Tanzania"

Cloves: The Spice that Enriched Empires

Behind one humble spice lies a complex history of empires and profit, commodities and globalization.
Medicago sativa

Alfalfa: A Crop that Feeds Our Food

In 2023, American farmers grew more than 9 million acres of alfalfa. What makes this legume hay so special?