Pentalinon luteum (L.) B.F.Hansen & Wunderlin, Taxon 35: 167 1986. (Syn: Angadenia jamaicensis (Griseb.) Lippold; Apocynum speciosissimum Mill.; Chariomma domingense (Jacq.) Miers;  Chariomma domingensis (Jacq.) Miers; Chariomma flava (Hook.) Miers; Chariomma flavum (Hook.) Miers; Chariomma mucronulata Miers; Chariomma scandens Miers; Chariomma surrecta Miers; Chariomma verticillata Miers; Dipladenia flava Hook.; Echites andrewsii Chapm.; Echites barbatus Desv.; Echites catesbaei G.Don; Echites christophorianus Ham.; Echites domingensis Jacq.; Echites heterophyllus J.F.Gmel.; Echites jamaicensis Griseb.; Echites neriandrus Griseb.; Echites obovatus Sessé & Moc.; Echites pellieri Loudon; Echites suberectus Andrews [Illegitimate]; Echites suberectus Jacq.; Haemadictyon suberectum (Jacq.) G.Don; Laseguea jaegeri Miers; Laseguea pubiflora Miers; Mitozus jamaicensis (Griseb.) Miers; Neriandra suberecta (Jacq.) A.DC.; Pentalinon luteum var. sericeum (R.W.Long) D.B.Ward; ……………..; Urechites lutea (L.) Britton; …………….);



efloraofindia:”For Id 27052012MR1’’ is this Pentalinon luteum at Pune: April & May 2012

Is this vine growing wild at Pune Pentalinon luteum? Please validate

leaf 5 cmx 2.5 cm, flower 2.5 inches long. red radiating lines in the throat and hair like structures at the tip of anthers

Is this the same as Urechites lutea ref  FOI

Aug 2012

I could capture better image of the throat of the flower of the same plant in Aug 2012. Attaching picture of the same. Following were the replies on Indian Flora for the same plant
From …
Yess, It is Pentalinon luteum (L.) B.F.Hansen & Wunderlin
appears to be Urechites lutea or wild allamanda

Urechites lutea is a syn of Pentalinon luteum


PRD 2 30/9/2014 : 2 posts by 2 authors. Attachments (1).

Please Id this ornamental herbaceous climber with yellow flowers. Photo was taken in Sri Lanka in Dec 2013.

Urechites lutea


Apocynaceae Climber For ID : Yellow Flowers : 27APR15 : AK-4 : 7 posts by 4 authors. Attachments (5)

Saw this climber in a plant nursery in Muscat.

Unfortunately, there were no open flowers.

Kindly help in id.

do you have some books on arabian flora by any chance

may be investing in some and then teaching us would be fun, i think

This is not a native plant.
It is a govt. nursery cultivating ornamental & garden plants.
I have studied a lot of native plants and also have a book.
Trying to Search for images with climber having yellow flowers.
Looks quite close to Mandevilla, with leaves little bigger oval shaped and flowers smaller.

Leaves not thick and glossy.

Looks like Pentalinon luteum…. not sure, only a guess….

Thanks for suggested id.

I have already stated that flowers are quite close to Mandevilla, but smaller in size, the leaves not glossy.

Pl. see efi page on Mandevilla 

Also see Top tropicals

While searching, the closest I could find was this link….. Rnr

Finally I could see the open flowers.
This is none other than Urechites lutea of Apocynaceae.
The Yellow Mandevilla.
The variations could have been due to intense heat in the climate.
Thanks for the help.

Adding a picture of the flowers. Attachments (1)

Fwd: SYMBIOSIS :1000 : 4 posts by 3 authors. Attachments (1)
Attaching a collage of Blank Swift visiting flowers of Allamanda sp.

Bimalji the climber is Pentalinon luteum (L.) B.F.Hansen & Wunderlin,
Ver.names: Hammock viper’s-tail, licebush, wild allamanda, wild wist, and yellow mandevilla (Eng.). It is an Exotic. Widely cultivated as an ornamental. Leaves are toxic.

Congrats … for 1000th pic of the series…

Congratulations … I have been following all yr Symbiosis posts and appreciate all yr efforts… Yes its a big achivement not only for you, but for all of us here..

Fwd: Seeking plant id : 6 posts by 3 authors. Attachments (1) – 3 MB.

Request you to identify the plant with yellow flowers given in the pic.

Allamanda cathartica ??

It is Pentalinon luteum (L.) B.F.Hansen & Wunderlin, of Apocyanaceae

The photograph is not clear. Close up(s) of the flower and foliage would help identify the plant. Looks different from Allamanda  Could be a species of Urechites . U.lutea ?

As per theplantlist U. lutea is a synonym of Pentalinon luteum (L.). You may please note.


Fwd: SYMBIOSIS : 1019 : 1 post by 1 author. Attachments (1)

Attaching a collage of Bumble bee visiting flowers of Pentalinon luteum.
SL 18 101113 : Attachments (1). 3 posts by 2 authors.

Please ID this Convolvulace with pale yellow fower. Photo was taken in Sri Lanka in Sep 2012.

Any chance of Allamanda cathartica

Probably Mandevilla

Pentalinon luteum

I too concur with …

ID 100513 ASP12 : Attachments (1).  3 posts by 3 authors.
This is a climber used as a medicinal herb. Photo was taken in March 2013 in a dry habitat in Sri Lanka. Could this be a species of Ipomoea or Merremia?

It can be Urechites lutea

efi page on Pentalinon luteum (Syn: Urechites lutea (L.) Britton)

You’re right



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