''Passiflora'', known also as the passion flowers or passion vines, is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of about 550

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

s, the

type genus In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nomina ...

of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Passifloraceae The Passifloraceae are a family of flowering plants, containing about 750 species classified in around 27 genera. They include tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches a ...

. They are mostly tendril-bearing

vine A vine ( Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners thems ...

s, with some being shrubs or

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

s. They can be

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of ligni ...

y or

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition ...

. Passion flowers produce regular and usually showy

flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism ...

s with a distinctive corona. There can be as many as eight coronal series, as in the case of ''P. xiikzodz''. The flower is

pentamerous Merosity (from the greek "méros," which means "having parts") refers to the number of component parts in a distinct whorl of a plant structure. The term is most commonly used in the context of a flower where it refers to the number of sepals in a w ...

and ripens into an indehiscent fruit with numerous seeds.

List of species

Distribution

''Passiflora'' has a largely

neotropic The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bi ...

distribution, unlike other genera in the family

, which includes more

Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by th ...

species (such as the genus ''

Adenia ''Adenia'' is a genus of flowering plants in the passionflower family, Passifloraceae. It is distributed in the Old World tropics and subtropics.

''). The vast majority of ''Passiflora'' are found in

Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

, the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...

and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the souther ...

, although there are additional representatives in

Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...

and

Oceania Oceania (, , ) is a region, geographical region that includes Australasia, Melanesia, Micronesia, and Polynesia. Spanning the Eastern Hemisphere, Eastern and Western Hemisphere, Western hemispheres, Oceania is estimated to have a land area of ...

. New species continue to be identified: for example, '' P. xishuangbannaensis'' and '' P. pardifolia'' have only been known to the scientific community since 2005 and 2006, respectively. Some species of ''Passiflora'' have been naturalized beyond their native ranges. For example, the

blue passion flower ''Passiflora caerulea'', the blue passionflower, bluecrown passionflower or common passion flower, is a species of flowering plant native to South America. It has been introduced elsewhere. It is a vigorous, deciduous or semi-evergreen tendril vi ...

(''P. caerulea'') now grows wild in Spain.Dana ''et al.''

001 001, O01, or OO1 may refer to: *1 (number), a number, a numeral *001, fictional British agent, see 00 Agent *001, former emergency telephone number for the Norwegian fire brigade (until 1986) *AM-RB 001, the code-name for the Aston Martin Valkyrie ...

/ref> The purple passionfruit (''P. edulis'') and its yellow relative ''flavicarpa'' have been introduced in many tropical regions as commercial crops.

Ecology

Passion flowers have floral structures adapted for biotic pollination. Pollinators of ''Passiflora'' include

bumblebee A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus ''Bombus'', part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related gene ...

s, carpenter bees (e.g., ''

Xylocopa sonorina ''Xylocopa sonorina'', the valley carpenter bee or Hawaiian carpenter bee, is a species of carpenter bee found from western Texas to northern California, and the eastern Pacific islands.Hurd, Jr., Paul (1958).The carpenter bees of the eastern P ...

''),

wasp A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant; this excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder. Th ...

s, bats, and

hummingbird Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics ar ...

s (especially

hermits A hermit, also known as an eremite ( adjectival form: hermitic or eremitic) or solitary, is a person who lives in seclusion. Eremitism plays a role in a variety of religions. Description In Christianity, the term was originally applied to a Ch ...

such as '' Phaethornis''); some others are additionally capable of

self-pollination Self-pollination is a form of pollination in which pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen is transferred t ...

. ''Passiflora'' often exhibit high levels of pollinator specificity, which has led to frequent coevolution across the genus. The sword-billed hummingbird (''Ensifera ensifera'') is a notable example: it, with its immensely elongated bill, is the sole pollinator of 37 species of high

Andean The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S l ...

''Passiflora'' in the supersection ''Tacsonia''. Knospe der Passionsblume

The leaves are used for feeding by the

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. Th ...

e of a number of species of Lepidoptera. Famously, they are exclusively targeted by many butterfly species of the tribe

Heliconiini Heliconiini is a tribe of butterflies in the subfamily Heliconiinae, also known as the passion-vine butterflies. This group has roughly 100 species and subspecies distributed primarily in the Neotropics.extrafloral nectaries,

trichome Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a pl ...

variegation Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the s ...

, and chemical defenses. These, combined with adaptations on the part of the butterflies, were important in the foundation of coevolutionary theory. The following lepidoptera larvae are known to feed on ''Passiflora'': * Longwing

butterflies Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises t ...

(

Heliconiinae The Heliconiinae, commonly called heliconians or longwings, are a subfamily of the brush-footed butterflies (family Nymphalidae). They can be divided into 45–50 genera and were sometimes treated as a separate family Heliconiidae within the ...

) ** Cydno longwing (''Heliconius cydno''), one of few Heliconians to feed on multiple species of ''Passiflora'' ** Gulf fritillary (''Agraulis vanillae''), which feeds on several species of ''Passiflora'', such as ''

Passiflora lutea ''Passiflora lutea'', commonly known as yellow passionflower, is a flowering perennial vine in the family Passifloraceae, native to the central and eastern United States. The vine has three-lobed leaves and small, yellowish-green, fringed flower ...

'', ''Passiflora affinis'', stinking passion flower (''P. foetida''), and Maypop (''P. incarnata'') ** American

Sara longwing The Sara longwing (''Heliconius sara'') is a species of neotropical heliconiid butterfly found from Mexico to the Amazon Basin and southern Brazil. It is a colourful species: the dorsal wing surface is black with a large medial patch of metallic ...

(''Heliconius sara'') ** Red postman ('' Heliconius erato'') ** Asian leopard lacewing (''Cethosia cyane''). **

Postman butterfly ''Heliconius melpomene'', the postman butterfly, common postman or simply postman, is a brightly colored butterfly found throughout Central and South America. It was first described by Carl Linnaeus in his 1758 10th edition of ''Systema Naturae' ...

(''Heliconius melpomene'') prefer '' P. menispermifolia'' and '' P. oerstedii'' ** Zebra longwing (''Heliconius charithonia'') feed on yellow passion flower, two-flowered passion flower ('' P. biflora''), and

corky-stemmed passion flower ''Passiflora suberosa'' is a species of passionflower that is native to the Americas. It is commonly known as corkystem passionflower due to the corkiness of older stems. Other common names include corky passion vine, cork-bark passion flower, c ...

('' P. suberosa'') ** Banded orange (''Dryadula phaetusa'') feed on '' P. tetrastylis'' ** Julia butterfly (''Dryas iulia'') feed on yellow passion flower and '' P. affinis'' *

Swift moth The Hepialidae are a family of insects in the lepidopteran order. Moths of this family are often referred to as swift moths or ghost moths. Taxonomy and systematics The Hepialidae constitute by far the most diverse group of the infraorder Exop ...

Cibyra serta ''Cibyra serta'' is a species of moth of the family Hepialidae. It is known from Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by ...

'' * Tawny Coster (''Acraea terpsicore'') feed on ''

Passiflora edulis ''Passiflora edulis,'' commonly known as passion fruit, is a vine species of passion flower native to southern Brazil through Paraguay and northern Argentina. It is cultivated commercially in tropical and subtropical areas for its sweet, seedy ...

'', ''

Passiflora foetida ''Passiflora foetida'' (common names: stinking passionflower, wild maracuja, bush passion fruit, wild water lemon, stoneflower, love-in-a-mist, or running pop) is a species of passion flower that is native to the southwestern United States (sout ...

'' and '' Passiflora subpeltata'' The generally high pollinator and parasite specificity in ''Passiflora'' may have led to the tremendous morphological variation in the genus. It is thought to have among the highest

foliar A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ste ...

diversity among all plant genera, with leaf shapes ranging from unlobed to five-lobed frequently found on the same plant.

Coevolution In biology, coevolution occurs when two or more species reciprocally affect each other's evolution through the process of natural selection. The term sometimes is used for two traits in the same species affecting each other's evolution, as well ...

can be a major driver of speciation, and may be responsible for the radiation of certain clades of ''Passiflora'' such as ''Tacsonia''. The bracts of the

stinking passion flower ''Passiflora foetida'' (common names: stinking passionflower, wild maracuja, bush passion fruit, wild water lemon, stoneflower, love-in-a-mist, or running pop) is a species of passion flower that is native to the southwestern United States (south ...

are covered by hairs which exude a sticky fluid. Many small insects get stuck to this and get digested to

nutrient A nutrient is a substance used by an organism to survive, grow, and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi, and protists. Nutrients can be incorporated into cells for metabolic purposes or excr ...

-rich goo by

protease A protease (also called a peptidase, proteinase, or proteolytic enzyme) is an enzyme that catalyzes (increases reaction rate or "speeds up") proteolysis, breaking down proteins into smaller polypeptides or single amino acids, and spurring the form ...

s and

acid phosphatase Acid phosphatase (EC 3.1.3.2, acid phosphomonoesterase', phosphomonoesterase, glycerophosphatase, acid monophosphatase, acid phosphohydrolase, acid phosphomonoester hydrolase, uteroferrin, acid nucleoside diphosphate phosphatase, orthophosphoric-m ...

s. Since the insects usually killed are rarely major

pests PESTS was an anonymous American activist group formed in 1986 to critique racism, tokenism, and exclusion in the art world. PESTS produced newsletters, posters, and other print material highlighting examples of discrimination in gallery represent ...

, this passion flower seems to be a

protocarnivorous plant A protocarnivorous plant (sometimes also paracarnivorous, subcarnivorous, or borderline carnivore), according to some definitions, traps and kills insects or other animals but lacks the ability to either directly digest or absorb nutrients from it ...

Banana passion flower Banana passionfruit (''Passiflora'' supersect. ''Tacsonia''), also known as taxo and curuba, is a group of around 64 ''Passiflora'' species found in South America. Most species in this section are found in high elevation cloud forest habitats. Flo ...

or "banana poka" (''P. tarminiana''), originally from Central

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, is an invasive

weed A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place", or a plant growing where it is not wanted.Harlan, J. R., & deWet, J. M. (1965). Some thoughts about weeds. ''Economic botany'', ''19''(1), 16-24. ...

, especially on the islands of

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only ...

. It is commonly spread by

feral A feral () animal or plant is one that lives in the wild but is descended from domesticated individuals. As with an introduced species, the introduction of feral animals or plants to non-native regions may disrupt ecosystems and has, in some ...

pig The pig (''Sus domesticus''), often called swine, hog, or domestic pig when distinguishing from other members of the genus ''Sus'', is an omnivorous, domesticated, even-toed, hoofed mammal. It is variously considered a subspecies of ''Sus ...

s eating the fruits. It overgrows and smothers stands of

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

vegetation, mainly on roadsides.

Blue passion flower ''Passiflora caerulea'', the blue passionflower, bluecrown passionflower or common passion flower, is a species of flowering plant native to South America. It has been introduced elsewhere. It is a vigorous, deciduous or semi-evergreen tendril vi ...

(''P. caerulea'') is holding its own in Spain these days, and it probably needs to be watched so that unwanted spreading can be curtailed. On the other hand, some species are

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

due to unsustainable logging and other forms of

habitat destruction Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

. For example, the

Chilean passion flower Chilean may refer to: * Something of, from, or related to Chile, a country in South America * Chilean people * Chilean Spanish * Chilean culture * Chilean cuisine * Chilean Americans See also *List of Chileans *