Passiflora incarnata

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Passiflora incarnata
OQ Passion flower.jpg
Passiflora incarnata fruit.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
Phylum: Tracheophyta
(unranked): Eudicots
(unranked): Rosids
Order: Malpighiales
Family: Passifloraceae
Genus: Passiflora
Species: P. incarnata
Binomial name
Passiflora incarnata
L., 1753
Passiflora incarnata map.jpg

Passiflora incarnata, commonly known as maypop, purple passionflower, true passionflower, wild apricot, and wild passion vine, is a fast-growing perennial vine with climbing or trailing stems. A member of the passionflower genus Passiflora, the maypop has large, intricate flowers with prominent styles and stamens. One of the hardiest species of passionflower, it is a common wildflower in the southern United States. The Cherokee in the Tennessee area called it ocoee; the Ocoee River and valley are named after this plant, which is the Tennessee state wildflower.[1] This, and other passionflowers are the exclusive larval host plants for the gulf fritillary and non-exclusive for the variegated fritillary butterflies.[2]


The stems can be smooth or pubescent; they are long and trailing, possessing many tendrils. Leaves are alternate and palmately 3-lobed and occasionally 5-lobed, measuring 6–15 centimetres (2.4–5.9 in). They have two characteristic glands at the base of the blade on the petiole. Flowers have five bluish-white petals. They exhibit a white and purple corona, a structure of fine appendages between the petals and stamens. The large flower is typically arranged in a ring above the petals and sepals. They are pollinated by insects such as bumblebees and carpenter bees, and are self-sterile. The flower normally blooms in July.[citation needed]

The fleshy fruit, also referred to as a maypop, is an oval yellowish berry about the size of a hen egg; it is green at first, but then becomes orange as it matures. As with other passifloras, it is the larval food of a number of butterfly species, including the zebra longwing and Gulf fritillary. In many cases its fruit is very popular with wildlife.[citation needed]

The maypop occurs in thickets, disturbed areas, near riverbanks, and near unmowed pastures, roadsides, and railroads. It thrives in areas with lots of available sunlight. It is not found in shady areas beneath a forest canopy.

Passiflora incarnata August 2014 U.K

[citation needed]

Agricultural practices[edit]

The culture of Passiflora incarnata does not need high requirement.[3] The plants grow in full sun and need direct sunlight for at least half of the day. The best soils for Passiflora incarnata are well-drained [4] but the plants tolerate occasionally wet and acidic soils. The plants have a high drought tolerance. Passiflora incarnata can be planted all the year in zone 7–11 (hardiness zone). The space between two plants is 36–60 inches (91.44 – 152.4 cm).[3] One to two years are necessary before begin bearing. Each flower has a very short life (about one day).[5] Then, the fruit develops in two to three month.[4] The harvest depends on vine size and age of the plant but one reported 10–20 fruits per vine.[5] Seeds can be collected in the fall after the fruit has begun to shrivel . There are some problems with nematodes and caterpillars in the culture of Passiflora incarnata.[3]

Medicinal use[edit]


One review found support for Passiflora in anxiety disorders.[6] Other review found the evidence insufficient to make make any claims about health effects.[7]


Possible interactions with following medications:

  • Sedatives
  • Antiplatelets and anticoagulants
  • Monoamine oxidase inhibitors (MOA)

P. incarnata may increase main effects or side effects of medications listed above.[8]

Pregnant or breast-feeding women should not used P.incarnata. The effects of the plant compounds on reproduction or on unborn child have not been tested yet. The consumption of this plant may prejudice the ability to drive and use machine.[9]

Historical uses and folk medicine[edit]

Historically, the plant been used as a herbal medicine to treat nervous anxiety and insomnia.[10] The dried, ground herb is frequently used in Europe by drinking a teaspoon of it in tea. A sedative chewing gum has even been produced albeit no sedative qualities have been noted, nor medical benefits beyond placebo.[citation needed]

Passiflora incarnata flower and bud

It has been used to reduce hypertension and cancer.[11] Methanol extractions from the leaves has been reported to be an effective antitussive in mice [12] and are effective to treat anxiety.[13]

After brought to Europe it became a popular remedy in phyotherapy and a homoeopathic remedy for the relief of mild symptoms of mental stress, anxiety nervousness, constipation, dispepsia, mild infections and insomnia. "Today, passionflower is officially included in the national pharmacopeias of France, Germany, and Switzerland and is also monographed in the British Herbal Pharmacopoeia and the British Herbal Compendium, the ESCOP monographs, the Community Herbal Monographs of the EMA, the German Standard Licences, the German Homoeopathic Pharmacopoeia, the Homoeopathic Pharmacopoeia of the United States, and the Pharmacopeia of Egypt. In Poland, it has been prescribed to cure disorders such as hysteria and neurasthenia. Presently, Passiflora incarnata is commonly used in phytotherapy as a mild sedative and anxiolytic. The botanical drugs included in the current European and British Pharmacopoeias are the dried aerial parts of the plant".[11]

In North America it is used for the treatment of diarrhoea, premenstrual syndrome, dysmenorrhoea, neuralgia, burns, haemorrhoids, insomnia, muscle cramps, hysteria, neuralgia, and as a pain reliever for various conditions. Passiflora incarnata is still used by Native Americans, for example Cherokees use the root of the plant as topical antiinflammatory medicine. Tea made from the roots is used as a tonic for the liver and for skin boils. The extracts of passiflora incarnata are also used for the relief of nervousness, abdominal cramps and anxiety .[11]

In other parts of the world, passiflora incarnata is used for the treatment of partially different diseases. For example, in Argentina and Mexico, it is consumed for its sedative effects, whereas in Brazil it is used as an analgesic, antispasmodic, anti-asthmatic, wormicidal and sedative. In India however, it has been used to treat morphine dependence, but in Vietnam sleeplessness, anxiety and high blood pressure have been treated with extracts from this plant. In the Middle East passiflora incarnata has again slightly different applications, for example in Turkey, dysmenorrhoea, epilepsy, insomnia, neurosis and neuralgia are treated with passiflora incarnata. But it has also been used as a sedative and narcotic medicine in Iraq. "In the African countries of Rwanda, Kenya and Congo passiflora incarnata is used as a folk remedy by herbalists and natural health practitioners for its sedative, nervine, anti-spasmodic and analgesic effects. In Australia, it is commonly prescribed as a sedative and anxiolytic medicine .[11]


The main substances in P. incarnata are flavonoids, but also alkaloids and other phyto-constituents can be found.[citation needed]

Flavonoids are the main component in P. incarnata. They can reach up to 2.5% of the total content. The greatest concentration of flavonoids has been reported to be in the leaves. Following flavonoids can be found in P. incarnata: chrysin, apigenin, luteolin, quercetin, kaempferol and isovitexin.[14] The flavonoid chrysin is thought to be the main substance responsible for the sedative effect of P. incarnata. The anxiety-reducing property is caused by the binding of chrysin to GABA-Benzodiazepinreceptors.[15] Little amounts of alkaloids has been reported in P. incarnata (<0.005%). Examples for alkaloids are: harmol, harmine, harmalol.[14] Other substances existing in P. incarnata includes mono- and polysaccharides, amino acids and essential oils.[16]

Culinary use[edit]

In cooking, the fruit of this variety is sometimes used for jam and jellies or as a substitute for its commercially grown South American relative Passiflora edulis – the fruit is of comparable size and juice yield, hence chilled maypop juice is a delicious treat in hot summer weather. The fruit can be eaten out of hand and historically it was a favorite of colonial settlers of the South and Native Americans alike. Today it is a very common plant growing in gardens in the American Southeast and parts of the Mid-Atlantic for this purpose as well as its showy violet flowers,[17] and still is a favorite of Cajuns, as evidenced by their name for the plant: liane de grenade, or "pomegranate vine".



P. incarnata can potentially become an agricultural weed. The gender Passiflora introduced for agricultural purpose has been reported as an important weed in certain regions of the world.[18] This plant is listed as invasive by the Department of Agriculture of the United-States according to these two authoritative sources:[19] Weeds of Kentucky and adjacent states: a field guide[20] and Weeds of the United States and Canada.[21]

Mechanical control as removing the suckers regularly is advised to prevent the spreading of maypop. It is also recommended to train the vines onto trellis and fences to limit propagation.[22]

Other Potential interesting use[edit]

P. incarnata extracts can be potentially used to produce organic sunscreens with a protective defense against UV radiations. The use of these plant compounds would diminish the concentration of synthetic UV in sunscreens.[23]


  1. ^ "State Symbols". Tennessee Government. Retrieved October 24, 2011. 
  2. ^ Horn, compiled and edited by Dennis Horn and Tavia Cathcart ; technical editor: Thomas E. Hemmerly ; photo editors: David Duhl and Dennis (2005). Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians : the official field guide of the Tennessee Native Plant Society. [Edmonton]: Lone Pine Pub. p. 105. ISBN 978-1-55105-428-5. 
  3. ^ a b c
  4. ^ a b
  5. ^ a b
  6. ^ Sarris, Jerome; McIntyre, Erica; Camfield, David A. (2013). "Plant-Based Medicines for Anxiety Disorders, Part 2: A Review of Clinical Studies with Supporting Preclinical Evidence". CNS Drugs 27 (4): 301–319. doi:10.1007/s40263-013-0059-9. ISSN 1172-7047. 
  7. ^ Miroddi, M.; Calapai, G.; Navarra, M.; Minciullo, P.L.; Gangemi, S. (2013). "Passiflora incarnata L.: Ethnopharmacology, clinical application, safety and evaluation of clinical trials". Journal of Ethnopharmacology 150 (3): 791–804. doi:10.1016/j.jep.2013.09.047. ISSN 0378-8741. 
  8. ^ Ehrlich, Steven D. "Passionflower". University of Maryland. A.D.A.M. Retrieved 22 November 2015. 
  9. ^ "Passiflora". European Medicines Agency. Retrieved 22 November 2015. 
  10. ^ Plants For A Future: Passiflora incarnata
  11. ^ a b c d Miroddi,, M (2013). "Passiflora incarnata L.: Ethnopharmacology, clinical application, safety and evaluation of clinical trials". Journal of Ethnopharmacology 150 (3), pp. 791–804. 
  12. ^ Dhawan, Kamaldeep, and Anupam Sharma. "Antitussive activity of the methanol extract of Passiflora incarnata leaves." Fitoterapia 73.5 (2002): 397–399.
  13. ^ Dhawan, K., Kumar, S., & Sharma, A. (2001). Anxiolytic activity of aerial and underground parts of Passiflora incarnata. Fitoterapia, 72(8), 922–926.
  14. ^ a b Dhawan, K., Dhawan, S., & Sharma, A. (2004). Passiflora: a review update. Journal of Ethnopharmacology, 94(1), 1–23.
  15. ^ Peter, H., & Penzel, T. (2007). Enzyklopädie der Schlafmedizin. Berlin Heidelberg New York Tokio: Springer.)
  16. ^ Krenn, L. (2006). Aktuelles über Passiflora incarnata. Zeitschrift für Phytotherapie, 27(01), 47–50.
  17. ^
  18. ^ Mc Guire, C. M. (1999). "Passiflora incarnata (Passifloraceae): A new fruit crop". Economic Botany 53 (2): 161–176. 
  19. ^ PLANTS Database. "Purple Passionflower". United States Department of Agriculture. Retrieved 22 November 2015. 
  20. ^ Haragan, P. D. (1991). Weeds of Kentucky and Adjacent States: A Field Guide. Lexington, KY: The University Press of Kentucky. ISBN 978-0-8131-3369-0. 
  21. ^ Southern Weed Science Society (1998). Southern Weed Science Society's weeds of the United States and Canada [electronic resource]. Champaign, Ill: Southern Weed Science Society. 
  22. ^ Mc Guire, C. M. (1999). "Passiflora incarnata (Passifloraceae): A new fruit crop". Economic Botany 53 (2): 161–176. 
  23. ^ Velasco, M. V. R.; Sarruf, F. D.; Salgado-Santos, I. M. N.; Haroutiounian-Filho, C. A.; Kaneko, T. M.; Baby, A. R. (2008). "Broad spectrum bioactive sunscreens". International journal of pharmaceutics 363 (1): 50–57. 

Further reading[edit]

Miroddi, M.; Calapai, G.; Navarra, M.; Minciullo, P.L.; Gangemi, S. (December 2013). "Passiflora incarnata L.: Ethnopharmacology, clinical application, safety and evaluation of clinical trials". Journal of Ethnopharmacology 150 (3): 791–804. doi:10.1016/j.jep.2013.09.047. 

External links[edit]