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{{Taxobox
| color = lightgreen
| name = ''Passiflora lutea''
| image = Passiflora lutea.JPG
| image_width = 240px
| image_caption = ''Passiflora lutea'' flower
| regnum = [[Plant]]ae
| divisio = [[flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Malpighiales]]
| familia = [[Passifloraceae]]
| genus = ''[[Passiflora]]''
| species = '''''P. lutea'''''
| binomial = ''Passiflora lutea''
| binomial_authority = [[Carolus Linnaeus|L.]]
}}
'''''Passiflora lutea''''' ('''Yellow passionflower''') is a [[flowering plant]] in the family [[Passifloraceae]], native [[North America]], in the eastern and south-central parts of the [[United States]] from [[Pennsylvania]] west to [[Kansas]], and south to [[Florida]] and [[Texas]]. It is the northernmost species of ''Passiflora'', occurring slightly further north than ''[[Passiflora incarnata|P. incarnata]]'', and tolerant of winter temperatures down to −15 °C, and even −30 °C for short periods.
It is a [[Perennial plant|perennial]] [[herbaceous]] climbing or trailing [[vine]] that can reach 3-5 m in length. The [[leaf|leaves]] are trilobed, 3-7 cm long and 3-15 cm broad, with a 5 cm petiole; in the north of its range, it is [[deciduous]]. The common name as well as the [[scientific name]] refers to the small, 1-1.5 cm diameter [[chartreuse]] (yellow-green) or off-white [[flowers]] it produces in summer. The flowers are followed by small black [[berry|berries]] that contain seeds that are brown and bumpy. ''P. lutea'' grows in bright shade to sunny places with moist, rich soil.
Yellow passionflower is often good for [[butterfly garden]]s, as it is a host for [[Gulf Fritillary|gulf fritillaries]], [[Dryas julia|julia butterflies]] (''Dryas julia''), and [[zebra longwing]]s (''Heliconius charitonius'').
===Conservation===
''P. lutea'' is considered an endangered species in [[Pennsylvania]].
==References==
*This article incorporates text translated from the [[:nl:Passiflora lutea|Dutch wikipedia]] page on the species
*[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?26983 Germplasm Resources Information Network: ''Passiflora lutea'']
*[http://plants.usda.gov/java/profile?symbol=PALU2 USDA species profile: ''Passiflora lutea'']
<gallery>
Image:Palu2 002 lhp.jpg|Passiflora lutea leaf
Image:Palu2 006 lhp.jpg|Seeds
Image:Passiflora lutea...JPG|Flower with finger for comparison
</gallery>
<gallery>
Image:Palu2 001 lvd.jpg|Drawing
</gallery>
| color = lightgreen
| name = ''Passiflora lutea''
| image = Passiflora lutea.JPG
| image_width = 240px
| image_caption = ''Passiflora lutea'' flower
| regnum = [[Plant]]ae
| divisio = [[flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Malpighiales]]
| familia = [[Passifloraceae]]
| genus = ''[[Passiflora]]''
| species = '''''P. lutea'''''
| binomial = ''Passiflora lutea''
| binomial_authority = [[Carolus Linnaeus|L.]]
}}
'''''Passiflora lutea''''' ('''Yellow passionflower''') is a [[flowering plant]] in the family [[Passifloraceae]], native [[North America]], in the eastern and south-central parts of the [[United States]] from [[Pennsylvania]] west to [[Kansas]], and south to [[Florida]] and [[Texas]]. It is the northernmost species of ''Passiflora'', occurring slightly further north than ''[[Passiflora incarnata|P. incarnata]]'', and tolerant of winter temperatures down to −15 °C, and even −30 °C for short periods.
It is a [[Perennial plant|perennial]] [[herbaceous]] climbing or trailing [[vine]] that can reach 3-5 m in length. The [[leaf|leaves]] are trilobed, 3-7 cm long and 3-15 cm broad, with a 5 cm petiole; in the north of its range, it is [[deciduous]]. The common name as well as the [[scientific name]] refers to the small, 1-1.5 cm diameter [[chartreuse]] (yellow-green) or off-white [[flowers]] it produces in summer. The flowers are followed by small black [[berry|berries]] that contain seeds that are brown and bumpy. ''P. lutea'' grows in bright shade to sunny places with moist, rich soil.
Yellow passionflower is often good for [[butterfly garden]]s, as it is a host for [[Gulf Fritillary|gulf fritillaries]], [[Dryas julia|julia butterflies]] (''Dryas julia''), and [[zebra longwing]]s (''Heliconius charitonius'').
===Conservation===
''P. lutea'' is considered an endangered species in [[Pennsylvania]].
==References==
*This article incorporates text translated from the [[:nl:Passiflora lutea|Dutch wikipedia]] page on the species
*[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?26983 Germplasm Resources Information Network: ''Passiflora lutea'']
*[http://plants.usda.gov/java/profile?symbol=PALU2 USDA species profile: ''Passiflora lutea'']
<gallery>
Image:Palu2 002 lhp.jpg|Passiflora lutea leaf
Image:Palu2 006 lhp.jpg|Seeds
Image:Passiflora lutea...JPG|Flower with finger for comparison
</gallery>
<gallery>
Image:Palu2 001 lvd.jpg|Drawing
</gallery>