Guarana Fruit

Guaraná: Stimulation from the Amazon to the World

Long cherished by Indigenous peoples for its medicinal and stimulating properties, guaraná remains a key element of Brazilian identity.
A botanical illustration of Indigofera tinctoria from La botanique de J.J. Rousseau, 1805

Plant of the Month: Indigo

The cultivation of this plant for its cherished blue dye tells the story of exploitative agricultural practices—and, hopefully, its reversal.
Study of Hibiscus Plants by Adolf Senff

Plant of the Month: Hibiscus

Nearly synonymous with the global tropics and subtropics, hibiscus symbolizes the Caribbean’s transnational past, present, and future.
Botanical illustration of Sisymbrium irio Linnaeus (unknown artist, 1896-1898)

Plant of the Month: London Rocket

London rocket was observed in abundance following the Great Fire of London in 1666, but why does this non-native weed still interest English botanists?
Watercolor illustration of Plumeria Acuminata commissioned by Scottish doctor and botanist William Roxburgh, late 18th century or early 19th century.

Plant of the Month: Frangipani

An ornamental plant whose white flowers hang over graveyards and temples in Southeast Asia presents complicated questions on national belonging and religious identity.
seaweed on a spoon

Eating Seaweed in the Americas

From the kelp highway to blue plate kelp specials, seaweeds are gaining greater acceptance on the dining tables in the Americas.
Ilex paraguariensis

Plant of the Month: Yerba Mate

The biological and cultural profile of mate has affected its global expansion, unlike other plants native to the Americas, such as cacao and maize.
Bromus diandrus and Bromus tectorum in Zion National Park

The Greening of the Great Basin

The growth of grass in a desert might not seem problematic, but the introduction of invasive species can disrupt plant, animal, and human inhabitants.
Panicum maximum, Guinea Grass

Plant of the Month: Guinea Grass

The West African grass was imported to sustain Caribbean sugar plantations, but it has turned against them, becoming a symbol of resilience and independence.
An illustration of Rafflesia arnoldii, 1821

Plant of the Month: Corpse Lily

The largest flower on the planet—a gigantic, pungent parasite—reveals deep genetic mysteries and unique conservation challenges.