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Family Apocynaceae
Kulangan
Vincetoxicum flexuosum var. perrottetianum (Decne) Schneidt, Meve & Liede

Scientific names Common names
Cynanchum tenellum Blanco Kulangan (Ilk.)
Oxystelma bifidum perrottetiana Llanos Kul-langem (Ilk.)
Secamone macrostachya Turcz. Maraipos-ti-bakir (Ilk.)
Tylophora bifida (Llanos) Fern.-Vill.  
Tylophora exilis Schltr.  
Tylophora luzonica Schltr.  
Tylophora merrillii Schltr.  
Tylophora perrottetiana Decne.  
Tylophora rizalensis Schltr.  
Tylophora whitfordii Schltr.  
Vincetoxicum flexuosum var. perrottetianum (Decne.) Schneidt, Meve & Liede
Tylophora perrottetiana Decne. is a synonym of Vincetoxicum flexuosum var. perrottetianum.
Vincetoxicum flexuosum var. perrottetianum is an accepted infraspecific of Vincetoxicum flexuosum (R.Br.) Kuntze. KEW: Plants of the World Online
Vincetoxicum flexuosum var. perrottetianum is an accepted species. KEW: Plants of the World Online
 

Gen info
- Vincetoxicum is a genus of plants in the family Apocynaceae. Although sometimes included in Cynachum, chemical and molecular evidence show Vincetoxicum is more related to Tylophora, now included in Vincetoxicum. (2)
- Etymology: The generic name derives from Latin, meaning "poison-beater" referring to the plants' supposed antidotal effects against snakebites. (2)

Botany
Kulañgan is a slender, twining, smooth, herbaceous vine, 2 to 5 meters in height. Leaves are green, shining, oblong to oblong-ovate, 5 to 8 centimeters in length, pointed at the tip, with a broad, rounded or slightly heart-shaped base. Inflorescence is terminal and axillary, simple or slightly branched, slender, and 10 to 30 centimeters long. Flowers are numerous, dull-purple, 4 to 5 millimeters in diameter, and borne in scattered, racemosely arranged fascicles; the pedicels are few and about 7 millimeters long. Follicles are green, lanceolate, about 5 centimeters long, 5 millimeters thick below the middle and narrowed upward to the pointed apex.

Distribution
- Found only in the Philippines.
- In thickets at low altitudes in Cagayan, Ilocos Norte, Bontoc, La Union, Benguet, Pangasinan, Nueva Vizcaya, Nueva Ecija, Rizal and Laguna Provinces in Luzon.

Properties
Leaves considered vulnerary.

Parts used
Leaves

Uses

Folkloric
- Leaves used for wound healing and dressing wounds. (3)

Studies
No studies found.

Availability
Wild-crafted.

Updated March 2023 / August 2022 / June 2020 / January 2014

                                                   PHOTOS / ILLUSTRATIONS
IMAGE SOURCE: / Photo / Apocynaceae : Vincetoxicum flexuosum / Flowering vine / Copyright © 2017 by P B Pelser & J F Barcelona / (contact: pieter.pelser@canterbury.ac.nz) [ref. DOL119705 / Non-Commercial Use / click on image to go to source page / Phytoimages.siu.edu
OTHER IMAGE SOURCE: Tylophora perrottetiana (Oxystelma bifidum, IS) US623775 / Creative Commons: Attribution-NonCommercial 3.0 Unported / Filibot.web / / flickr
Additional Sources and Suggested Readings
(1)
Vincetoxicum flexuosum var. perrottetianum / KEW: Plants of the World Online

(2)
Vincetoicum / Wikipedia
(3)
Tylophora perrottetiana / W. H Brown / Minor Products of Philippine Forewts, 1(3), ed 1884
(4)
Tylophora perrottetiana (PROSEA) / Plant Resources of South-East Asia / Pl@ntUse

DOI: It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page. (Citing and Using a (DOI) Digital Object Identifier)

                                                            List of Understudied Philippine Medicinal Plants

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