Parmentiera edulis, commonly known as Cuachilote, Guajilote, or Candle Tree (from Spanish Palo de Velas), is a species of flowering plant in the family Bignoniaceae. It is native to Mexico and Central America, where it is primarily valued for its unusual and edible fruit.
Description
Parmentiera edulis is a small to medium-sized evergreen or semi-deciduous tree, typically growing 5 to 10 meters (16 to 33 feet) tall, though it can occasionally reach up to 15 meters (49 feet).
- Trunk and Branches: The tree has a relatively slender trunk and often develops a somewhat open, spreading crown.
- Leaves: The leaves are opposite, compound, and trifoliate (composed of three leaflets). The leaflets are ovate to elliptic, glossy green, and typically 2-7 cm long.
- Flowers: The inconspicuous flowers are bell-shaped, greenish-white to yellowish, and grow directly from the trunk and older branches (a botanical phenomenon known as cauliflory). They are pollinated by bats or insects.
- Fruit: The most distinctive feature of the tree is its fruit. These are long, slender, cylindrical, and slightly curved pods, resembling small candles or cucumbers, which gives the tree its common name "Candle Tree." They can grow up to 30 cm (12 inches) in length and 3-5 cm (1-2 inches) in diameter. The fruit ripens from green to a yellowish-green or bright yellow color. The pulp inside is yellowish, somewhat fibrous, sweet, and aromatic, often described as having a taste reminiscent of sugarcane, apple, or chayote. It contains numerous small, flat seeds embedded within the pulp.
Distribution and Habitat
Parmentiera edulis is indigenous to dry tropical and subtropical regions of Mexico (including states like Oaxaca, Chiapas, and Veracruz) and Central America (Guatemala, Honduras, El Salvador, Nicaragua, and Costa Rica). It commonly grows in dry forests, deciduous forests, and disturbed areas, often found along riversides or in rocky soils. It is well-adapted to warm climates and can tolerate various soil conditions, though it prefers well-drained loamy soils.
Uses
- Culinary: The primary use of Parmentiera edulis is its edible fruit. The fruit is typically eaten raw when ripe, or it can be cooked. It is often used to make refreshing drinks (aguas frescas), jellies, preserves, or fermented into a type of vinegar. In traditional Mexican cuisine, it is sometimes added to savory dishes. The fruit is generally sweet and provides a source of carbohydrates, fiber, and some vitamins.
- Ornamental: Due to its unique cauliflorous fruiting habit and attractive fruit display, the tree is sometimes cultivated as an ornamental plant in tropical and subtropical gardens.
- Traditional Medicine: In some traditional practices, parts of the tree, including the fruit, have been used for their purported medicinal properties, though scientific evidence for these claims is limited.
Cultivation
Parmentiera edulis is propagated by seeds or cuttings. It thrives in full sun and requires consistent moisture during its establishment phase, though mature trees are relatively drought-tolerant. It prefers warm temperatures and is not frost-hardy. Its unique growth habit and edible fruit make it a distinctive addition to tropical food forests and botanical collections.
Etymology
The genus name Parmentiera honors Antoine-Augustin Parmentier (1737–1813), a French pharmacist, nutritionist, and agriculturist, best known for his advocacy of the potato as a food crop in France. The specific epithet edulis is Latin for "edible," referring to the fruit of the tree.