Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Datasheet

Dahlia imperialis
(bell tree dahlia)

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Datasheet

Dahlia imperialis (bell tree dahlia)

Summary

  • Last modified
  • 22 November 2019
  • Datasheet Type(s)
  • Invasive Species
  • Host Plant
  • Preferred Scientific Name
  • Dahlia imperialis
  • Preferred Common Name
  • bell tree dahlia
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Plantae
  •     Phylum: Spermatophyta
  •       Subphylum: Angiospermae
  •         Class: Dicotyledonae
  • Summary of Invasiveness
  • The following summary is from Witt and Luke (2017):

    Description

    Evergreen fast-growing herb (2–6 m tall); stems...

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    Compendia
    CAB International
    Wallingford
    Oxfordshire
    OX10 8DE
    UK
    compend@cabi.org
  • Distribution map More information

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Identity

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Preferred Scientific Name

  • Dahlia imperialis Roezl ex Ortgies

Preferred Common Name

  • bell tree dahlia

Summary of Invasiveness

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

Description

Evergreen fast-growing herb (2–6 m tall); stems erect, 4-angled, brittle and woody (8 cm wide), usually branched from the base with swollen nodes and with underground tubers (a swollen underground stem that functions as a food storage organ or as a means of vegetative production).

Origin

Mexico and possibly Colombia and Guatemala and elsewhere in Central and South America.

Reason for Introduction

Ornament.

Invades

Roadsides, disturbed areas, wastelands, urban open spaces, gardens, plantations and forest gaps/edges.

Impacts

Forms dense stands which may displace native fauna and flora. Parts of the plant are considered to be toxic.

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Plantae
  •         Phylum: Spermatophyta
  •             Subphylum: Angiospermae
  •                 Class: Dicotyledonae
  •                     Order: Asterales
  •                         Family: Asteraceae
  •                             Genus: Dahlia
  •                                 Species: Dahlia imperialis

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.

Last updated: 17 Feb 2021
Continent/Country/Region Distribution Last Reported Origin First Reported Invasive Reference Notes

Africa

KenyaPresentIntroducedInvasive
MalawiPresentIntroducedNaturalizedNaturalized
RwandaPresentIntroducedNaturalizedNaturalized
TanzaniaPresentIntroducedInvasive

North America

MexicoPresentNative

Links to Websites

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WebsiteURLComment
GISD/IASPMR: Invasive Alien Species Pathway Management Resource and DAISIE European Invasive Alien Species Gatewayhttps://doi.org/10.5061/dryad.m93f6Data source for updated system data added to species habitat list.

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