Passiflora tarminiana (or banana passionfruit) is a species of passionfruit. The yellow fruits are edible and their resemblance to small, straight bananas has given it the name banana passionfruit in some countries. It is native to the uplands of tropical South America and is now cultivated in many countries. In Hawaii and New Zealand it is now considered an invasive species. It was given the name banana passionfruit in New Zealand, where passionfruit are also prevalent. In Hawaii, it is called banana poka. In its Latin American homeland, it is known as curuba, curuba de Castilla, or curuba sabanera blanca (Colombia); taxo, tacso, tagso, tauso (Ecuador); parcha, taxo (Venezuela), tumbo or curuba (Bolivia); tacso, tumbo, tumbo del norte, trompos, tintin, porocsho or purpur (Peru). Passiflora tarminiana belongs to the Tacsonia subgenus of Passiflora. It has been known under a number of different names and was only formally described in 2001.
Description Passiflora tarminiana is a high climbing vine with hairy stems and petioles. Where the petioles join the stem it has stipules which are 4–7 by 2–3 mm and are soon deciduous. The leaves are three-lobed and hairy below but usually hairless above. The flowers are solitary and hang downwards. The base of the flower has pale green bracts enclosing a swollen nectary chamber. The floral tube (hypanthium) is 6–8 × 0.7–1 cm and pale green, while the sepals and petals are 3–6 cm long, pink and perpendicular to the floral tube, or reflexed. Fruits taper at both ends, are 10–14 cm long by 3.5–4.5 cm wide and ripen to yellow or light orange. The fruit contain many seeds which are embedded in an edible, orange aril. Mollissima and its close relative Passiflora mixta are vines with cylindrical stems densely coated with yellow hairs, and are vigorous climbers, growing up to seven metres. The leaves are a shiny green with clearly defined veins, the flower is large, pink and green petalled with a yellow and white centre. The fruit is yellow-orange when ripe and contains a sweet edible orange-colored pulp with black seeds. Passiflora tarminiana is distinguished from P. tripartita var. mollissima by a number of features. P. tarminiana has small deciduous stipules while P. tripartita var. mollissima has larger, persistent stipules. The sepals and petals in P. tarminiana are perpendicular to the floral tube or are reflexed, whereas they are never so open in P. tripartita var. mollissima. They are also both much shorter in relation to the length of the floral tube in P. tripartita var. mollissima than in P. tarminiana.
Taxonomy
The correct taxonomic placement of this species has been problematic for some years. In South America it has been considered under P. cumbalensis, P. mollissima or P. tripartita (the species which now includes P. mollissima), or as a hybrid. In Hawaii it was referred to as P. mollissima. In New Zealand it was included under P. mixta although some sources also used the name P. mollissima for this species. It was described as a separate species distinct from any of these in 2001. The specific name recognises the Colombian agronomist Tarmín Campos.
Common names for P. tarminiana include banana passionfruit (Australia, New Zealand, Africa, Hawaii), curuba India, curuba ecuatoriana, curuba quiteña (Colombia), tacso amarillo (Ecuador), tumbo (Perú), banana pōka (Hawaii) (in the Hawaiian language the word pōka'a refers to tendrils – "that which is tied up in a ball like rope or twine"), northern banana passionfruit (New Zealand).
Distribution Passiflora tarminiana is native to the uplands of tropical South America but the exact native range is uncertain as it has been widely cultivated in this region. It is found in the Colombian highlands and the Venezuelan, Peruvian and southern Ecuadorean Andes where it is cultivated from around 2000 – 3000 metres. It has naturalised in Australia, Guam, Hawaii, New Zealand and Zimbabwe. In both Hawaii and New Zealand it is regarded as an invasive species. It is widely cultivated throughout the world, including California, Réunion, Mexico, Panama and Papua New Guinea. Passiflora tripartita var. mollissima and P. tarminiana were until recently considered to be one species, P. mollissima.
Historic use The banana passionfruit is native to the Andean valleys from Venezuela to Bolivia. It was domesticated and cultivated since pre-Columbian times by various cultures of western South America before the Spanish Conquest and today it is commonly cultivated and its fruit are regularly sold in local markets. The vine is grown in California as an ornamental under the name "softleaf passionflower". It is grown to some extent in Hawaii, Madeira and the State of Tamil Nadu, India.
Biology
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