https://web.archive.org/web/20110726045828/http://www.state.hi.us/dlnr/dofaw/cwcs/files/Flora%20fact%20sheets/Bri_ins%20plant%20NTBG_OK.pdf|fechaarchivo=26 de julio de 2011 (es)
https://web.archive.org/web/20110726045828/http://www.state.hi.us/dlnr/dofaw/cwcs/files/Flora%20fact%20sheets/Bri_ins%20plant%20NTBG_OK.pdf|fechaarchivo=26 de julio de 2011 (es)