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Weed ID
Invasive Weeds on Maui

Invasive Weeds on Maui

This series of articles is meant as an overview of the most prevalent invasive plants that have found their way to this island and established themselves as a threat to native species. Almost all the plants designated as weeds have started in this manner.

This is broken down to four major areas on the island, each having its own climate and micro-climates.

Even so, one would note an overlap of the more common invasives across the island.

West and South Maui

For more detailed information on any of the mentioned plants, please see below for a sample of links, mostly from the Maui Invasive Species Committee (MISC) and The Department of Land and Natural Resources (DLNR) websites. Good, reliable scientific information.

African Olive

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Olea_europaea.pdf

http://www.iucngisd.org/gisd/species.php?sc=1585

African Tulip tree

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Spathodea_campanulata.pdf

https://www.biisc.org/plant/spathodea-campanulata-african-tulip-tree/

Australian Tea Tree

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Melaleuca_quinquenervia.pdf

https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.34348

Australian Tree Fern

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Sphaeropteris_cooperi.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/australian-tree-fern/

Banana Poke

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Passiflora_tarminiana.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/banana-poka-passiflora-mollisima/

Bermuda Grass

https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.17463

http://www.iucngisd.org/gisd/species.php?sc=202

Bidens

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Bidens_pilosa.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/fireweed/

Florida Blackberry

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/florida-raspberry-rubus-argutus/

https://www.invasive.org/gist/esadocs/documnts/rubuarg.pdf

Christmas Berry

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Schinus_terebinthifolius.pdf

https://dlnr.hawaii.gov/hisc/info/biocontrol/latest-biocontrol/christmas-berry/

Fireweed

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Senecio_madagascariensis.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/fireweed/

Fountain Grass

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Pennisetum_setaceum.pdf

https://www.invasive.org/weedcd/pdfs/wgw/fountaingrass.pdf

Gorse

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/gorse/

https://portal.nifa.usda.gov/web/crisprojectpages/0201451-the-invasiveness-of-the-noxious-weed-gorse-ulex-europaeus-l-influenced-by-symbiosis-in-agricultural-and-natural-habitats-of-hawaii.html

Guinea Grass

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Panicum_maximum.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/guinea-grass/

https://plantpono.org/hpwra/megathyrsus-maximus/

Kahili Ginger

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Hedychium_coronarium.pdf

https://dlnr.hawaii.gov/hisc/info/biocontrol/latest-biocontrol/hedychium-gardnerianum/

Kiawe

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Prosopis_pallida.pdf

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Prosopis_juliflora.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/long-thorn-kiawe

Kikuyu Grass

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Pennisetum_clandestinum.pdf

https://www.cal-ipc.org/plants/profile/pennisetum-clandestinum-profile/

https://ipm.ucanr.edu/PMG/PESTNOTES/pn7458.html

Koster’s Curse

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Clidemia_hirta.pdf

https://dlnr.hawaii.gov/hisc/info/biocontrol/latest-biocontrol/clidemia-hirta-miconia-calvescens/

Lantana

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Lantana_camara.pdf

https://www.cabidigitallibrary.org/doi/10.1079/cabicompendium.29771

Miconia

https://dlnr.hawaii.gov/hisc/info/biocontrol/latest-biocontrol/miconia-calvescens/

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Miconia_calvescens.pdf

Mile-a-minute

https://www.aphis.usda.gov/plant_health/plant_pest_info/weeds/downloads/wra/Mikania_micrantha_WRA.pdf

Pampas Grass

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Cortaderia_jubata.pdf

https://dlnr.hawaii.gov/hisc/info/invasive-species-profiles/pampas-grass/

Strawberry guava

https://plantpono.org/high-risk-plants/psidium-cattleianum/

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Psidium_cattleianum.pdf

Yellow Himalayan Raspberry

https://www.ctahr.hawaii.edu/invweed/WeedsHI/W_Rubus_ellipticus.pdf

https://dlnr.hawaii.gov/hisc/info/biocontrol/latest-biocontrol/rubus-ellipticus-rubus-niveus/

12.04.2023-TF-SB

Bidens, Christmas Berry, Fireweed, Florida Blackberry, Fountain Grass, Gorse, Guinea Grass, invasive, invasive plants, Kahili Ginger, Kiawe, Kikuyu Grass, Koster's Curse, Lantana, Miconia, Mile-a-Minute Weed, Pampas Grass, Strawberry Guava, Weed ID, Yellow Himalayan Raspberry

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Updated on December 4, 2023

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