talo

The English word taro comes from the Samoan and Tongan form talo, which derives from Proto-Polynesian *talo — the name for the plant Colocasia esculenta, the giant-leafed starchy corm that became one of the most important food plants in the Pacific. The word is ancient enough that its pre-Polynesian form appears in Proto-Austronesian reconstruction: *tales or *talas, indicating that the plant and its name traveled with Austronesian-speaking peoples from their homeland in Taiwan across Southeast Asia and into the Pacific over a period of 3,000 to 5,000 years. The Hawaiian form is kalo — following the same t→k shift that gives kapu from tapu — and in Hawaiian, kalo carries a mythological weight that no other food plant matches. The Kumullipo, the Hawaiian creation chant, tells that the god Wākea and his daughter Hoʻohōkūkalani conceived a first child that was born still and shapeless; this child was buried, and from the burial grew the first kalo plant. The second child was born alive and became Hāloa, the first man. Kalo — taro — is literally the elder sibling of the human race in Hawaiian cosmology.

Taro as a food plant is extraordinarily productive and nutritionally significant. The corm (the underground stem base) is one of the most digestible of all starches — it is nearly completely non-allergenic and was historically one of the first solid foods given to infants in both Polynesian and Asian cultures. The leaves are edible and nutritious when cooked (they must be cooked to neutralize calcium oxalate crystals that cause intense irritation when raw). Different varieties were cultivated for different uses and microenvironments: wetland taro (kalo wai) was grown in flooded paddies similar to rice cultivation and produced the largest, starchiest corms; dryland taro (kalo maʻi) grew in rain-fed plots. Hawaii alone had over 300 named varieties of kalo before Western contact, each with distinct flavor, texture, and ceremonial use — a staggering diversity representing centuries of selective cultivation. The destruction of traditional taro cultivation by land conversion after Western contact reduced this to a handful of varieties, and modern Hawaiian taro revitalization is partly agricultural and partly cultural recovery.

The word taro entered English through the accounts of European explorers in the Pacific, appearing in print from the late eighteenth century onward. Joseph Banks, the naturalist aboard Cook's first voyage, documented taro cultivation in Tahiti in 1769. As Pacific exploration, whaling, and missionary activity expanded, the word spread through English writing about the Pacific. In the modern global food economy, taro appears as the basis of poi (the Hawaiian fermented paste), as taro chips, taro bubble tea, and taro-flavored desserts across East and Southeast Asian and Pacific Islander diaspora food cultures. The purple color of some taro varieties — produced by anthocyanin pigments — makes taro-flavored products visually distinctive in the food market. The corm that fed civilizations across the Pacific for millennia now appears in chain bubble-tea shops as a lavender-colored drink, a transformation that would baffle any Hawaiian aliʻi and delight any agricultural economist.