Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide


Calotropis gigantea
(Yercum fibre)



Calotropis gigantea (Yercum fibre)


  • Last modified
  • 01 November 2018
  • Datasheet Type(s)
  • Invasive Species
  • Host Plant
  • Preferred Scientific Name
  • Calotropis gigantea
  • Preferred Common Name
  • Yercum fibre
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Plantae
  •     Phylum: Spermatophyta
  •       Subphylum: Angiospermae
  •         Class: Dicotyledonae
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Preferred Scientific Name

  • Calotropis gigantea (L.) Dryand. ex W. T. Aiton

Preferred Common Name

  • Yercum fibre

International Common Names

  • Spanish: Mudar
  • French: Mudar

Local Common Names

  • Germany: Akonfaserstrauch
  • Italy: Seta di calotropis

EPPO code

  • CTRGI (Calotropis gigantea)

Summary of Invasiveness

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The following summary is from Witt and Luke (2017):


Large shrub (to 4 m tall); sometimes branching from the base; exudes copious amounts of milky sap when damaged.


China, Iran, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Pakistan, Sri Lanka and Thailand.

Reason for Introduction

Medicine and ornament.


Roadsides, disturbed land, wasteland, urban open spaces, fallow land, croplands, gullies, lowlands and floodplains.


C. gigantea occurs sympatrically with C. procera in many parts of Kenya and Tanzania. As such, their impacts may be considered to be similar. Invades degraded rangeland pastures, river flats and coastal dunes.

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Plantae
  •         Phylum: Spermatophyta
  •             Subphylum: Angiospermae
  •                 Class: Dicotyledonae
  •                     Order: Gentianales
  •                         Family: Apocynaceae
  •                             Genus: Calotropis
  •                                 Species: Calotropis gigantea

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Continent/Country/RegionDistributionLast ReportedOriginFirst ReportedInvasivePlantedReferenceNotes


ChinaPresentPresent based on regional distribution.
-GuangdongPresent Natural
-GuangxiPresent Natural
-SichuanPresent Natural
-YunnanPresent Natural
IndiaUnconfirmed record Natural CAB Abstracts
-Tamil NaduUnconfirmed record
IndonesiaPresent Natural
IranPresent Natural
LaosPresent Natural
MalaysiaPresent Natural
MyanmarPresent Natural
NepalPresent Natural
PakistanUnconfirmed record Natural CAB Abstracts
Sri LankaPresent Natural
ThailandPresentWitt and Luke, 2017


KenyaPresentIntroduced Invasive Witt and Luke, 2017
TanzaniaPresentIntroduced Invasive Witt and Luke, 2017

Uses List

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  • Ornamental

Human food and beverage

  • Spices and culinary herbs


  • Fibre
  • Poisonous to mammals

Medicinal, pharmaceutical

  • Traditional/folklore

Distribution Maps

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