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Examples of Plants Not to Sell on Maui
Because of Their Invasive Characteristics
What makes a plant invasive?
• Outcompetes desirable plants
• Rapid growth
• Early maturity
• Production of many seeds
• Short germination periods
• Lengthy seed viability
• Effective seed dispersal methods
• Ability to reproduce vegetatively
• Ability to use local pollinators
• Produces dense shade
• Produces dense root mass
Plant Examples
Bush/shrub
The following plants were identified by members of the Maui Invasive Species
Committee (MISC) as examples of plants that are invasive and found on Maui.
Any MISC target plant species or any plant on the Hawaii Noxious Weed List
should not be sold.
Lists of invasive plants can be found at the following:
1) Maui Invasive Species Committee target plant species list—
www.hear.org/misc/misc_target_species.htm
2) Department of Land & Natural Resources list of the worst horticultural plants in
Hawaii—www.state.h i.us/dlnr/dofaw/hortweeds/specieslist.htm
3) Hawaii Noxious Weed List— www.hear.org/weedlists/usa/hi.htm
4) Global Compendium o f Weeds—www.hear.org/gcw/
The plant examples are listed under six categories similar to the Maui County
Department of Water Supply’s “Saving Water in the Yard” publication.
Fern
Grass/sedge
Ground cover
Tree
Vine
Common Name False awa
Scientific Name Piper auritum
(not "Hawaiian
awa")
What’s it
Spreading in
doing?
wet habitats,
hard to get rid
of.
Floating fern
Salvinia spp.
Pampas grass Coral creeper Autograph tree
Cortaderia spp. Baleria repens Clusia rosea
Clogs waterways.
Cost over $1 Million
to clean up in Oahu’s
Lake Wilson. Could
be problem on Maui.
Has sharp
Readily
serrated
escapes from
leaves.
plantings.
Invading
native rain
forests to subalpine
shrubland.
Escaping
Rubber
in wet
vineand
A rampant
dry areas.
(Cryptostegia
Able to
climber.
growgrandiflora)
on cliffsides and
on desirable plants.
Difficult to control.
Invading Kauai,
Oahu, and the Big
Island.
Common Name Blackberry/
Raspberry
Scientific Name Rubus spp.
Australian Tree Fern
Sphaeropteris
cooperi (aka
Cyathea cooperi)
Giant reed
Japanese
honeysuckle
Arundo donax Lonicera
japonica
Dwarf umbrella plant
Invading the rain
forest.
Dense thickets
clog
waterways.
Found
upcountry,
Kihei, and
Kahului.
Can germinate and
A smothering
grow on steep areas
vine. Invading
and other plants.
upcountry.
Difficult to control.
Spreads from where it
is planted, especially
in moist areas.
7/03
What’s it
doing?
Extremely
thorny, forms
impenetrable
thickets.
Invading
upcountry.
Forms
rambling
thickets and
strangles
vegetation. A
notorious weed
across U.S.
Schefflera sp.
Mexican creeper
Antigonon
leptopus
German ivy
Delairea odorata
(aka Senecio
mikanioides)