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.
From The Mountains of California, by John Muir (New York: The Century, 1898)

Plant of the Month: White Sage

An important part of Indigenous spirituality and identity, the aromatic evergreen shrub is being threatened by poachers and over-commercialization.
A 19th century advertisement for tomato seeds

Tomatoes as Medicine

Tomatoes, once believed by Americans to be poisonous, became an unquestioned staple of a healthy diet thanks to doctors and popular cookbooks.
Humulus Lupulus No. 50 Common Hops, C. S. Rafinesque, Medical flora, 1828-1830. Rare Book Collection, Dumbarton Oaks Research Library and Collection.

Plant of the Month: Hops

As the craft beer industry reckons with its oppressive past, it may be time to re-examine the complicated history (and present) of hops in the United States
From Flora de Filipinas by Francisco Manuel Blanco, c.1880-1883

Plant of the Month: Black-eyed Pea

Human relationships to this global crop have been shaped by both violence and resilience.