Tabernaemontana macrocalyx is a species of plant in the family Apocynaceae.[1] It is found in northern South America. 
Quick facts Scientific classification, Binomial name ...
| Tabernaemontana macrocalyx | 
  | 
| Scientific classification  | 
| Kingdom: | 
Plantae | 
 
| Clade: | 
Tracheophytes | 
 
| Clade: | 
Angiosperms | 
 
| Clade: | 
Eudicots | 
 
| Clade: | 
Asterids | 
 
| Order: | 
Gentianales | 
 
| Family: | 
Apocynaceae | 
 
| Genus: | 
Tabernaemontana | 
| Species: | 
T. macrocalyx  | 
| Binomial name | 
Tabernaemontana macrocalyx
 Müll.Arg.  | 
| Synonyms | 
- Anacampta macrocalyx (Müll.Arg.) Markgr.
 
- Anacampta muelleriana (Mart. ex Müll.Arg.) Markgr.
 
- Bonafousia macrocalyx (Müll.Arg.) Boiteau & L.Allorge
 
- Bonafousia morettii L.Allorge
 
- Bonafousia muelleriana (Mart. ex Müll.Arg.) Boiteau & L.Allorge
 
- Codonemma calycinum Miers
 
- Codonemma macrocalyx (Müll.Arg.) Miers
 
- Odontadenia macrocalyx (Müll.Arg.) Miers
 
- Quadricasaea caquetensis Woodson
 
- Quadricasaea inaequilateralis Woodson
 
- Tabernaemontana benthamiana Müll.Arg.
 
- Tabernaemontana inaequilateralis (Woodson) Pichon
 
- Tabernaemontana muelleriana Mart. ex Müll.Arg.
 
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The plant is sometimes harvested from the wild for local medicinal use.[2]