Field-based assessment of current impacts by exotic plants in Hawai`i
Request for Information
The Hawaii/Pacific Weed Risk Assessment protocol (HPWRA) has been used to review
over 500 species of plants in the horticultural trade. The HPWRA is a predictive
tool; it only considers actual field behavior in Hawaii if published
information is available. Yet, much information on the distribution and impacts of invasive
species in Hawaii remains unpublished. It resides in the collective experience of land managers,
horticultural specialists, farmers, ranchers, and folks whose jobs or interests
take them into Hawaii's natural areas. The Hawaii Exotic Plant Evaluation
Protocol (HEPEP) draws upon actual field observations to evaluate current impacts of
exotic plants in Hawaii. If you have information on any of our target species
that suggests they may be a threat to Hawaii's native, agricultural or forestry
plant communities, we would like to hear about it. We are requesting rather
specific information documented for each species to keep the evaluation process
objective and rigorous. Submitted information will be collated and summarized.
We may want to contact you for clarification. Our objective is to summarize the
current field status of exotic plant in Hawaii and provide clear documentation
of those species that are currently causing significant ecological and economic
harm.
Julie S. Denslow
Curt C. Daehler
Institute of Pacific Islands
Forestry
Department of Botany
USDA Forest
Service
University of Hawaii at Manoa
HEPEP
Reference Documents
Submit
Field Observations
Species currently being examined using HEPEP
Adenanthera pavonina
Albizia lebbeck
Angiopteris evecta
Antigonon leptopus
Ardisia crenata
Asparagus densiflorus
Axonopus compressus
Carpobrotus edulis
Dieffenbachia seguine
Eugenia uniflora
Lantana montevidensis
Leonotis nepetifolia
Ligustrum sinense
Macfadyena unguis-cati
Melia azedarach
Parkinsonia aculeata
Phyla nodiflora
Pithecellobium dulce
Ptychosperma macarthurii
Pyrostegia venusta
Sansevieria trifasciata
Stenotaphrum secundatum
Tecoma stans
Thevetia peruviana
Turnera ulmifolia
webpage maintained by Curt Daehler