Weeds of Hawaii
Weeds of Hawaii’s Pastures and Natural Areas; An Identification and Management Guide by P. Motooka, L. Castro, D. Nelson, G. Nagai, and L. Ching. ©2003, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa.
Available for sale from CTAHR, this book includes a quick visual key to help quickly identify weedy trees, shrubs, vines, herbs and grasses found in Hawaii. Individual fact sheets from the publication are available below (.pdf).
- Abrus precatorius, Precatory bean, black-eyed susan, bead vine, rosary pea
- Acacia confusa, Formosa koa, small Phiilppine acacia, yanangi (Belau)
- Acacia farnesiana, Klu, huisache
- Acacia mearnsii, Black wattle
- Ageratina adenophora, Maui pamakani
- Ageratum conyzoides, Tropic ageratu
- Amaranthus spinosus, Spiny amaranth, pigweed
- Andropogon virginicus, Broomsedge
- Ardisia elliptica, Shoebutton ardisia
- Arthrostema ciliatum, Arthrostema
- Asclepias physocarpa, Balloon plant
- Asystasia gangetica, Chinese violet, coromandel
- Axonopus fissifolius, Narrowleaved carpetgrass
- Bambusa vulgaris, Feathery bamboo, common bamboo
- Batis maritima, Pickle weed, akulikulikai
- Bidens pilosa, Hairy beggartick, Spanish needle
- Blechnum occidentale, Blechnum fern
- Bocconia frutescens, Bocconia, plume poppy, tree poppy
- Boerhavia coccinea, Red spiderling
- Brachiaria mutica, Paragrass, californiagrass, panicumgrass, buffalograss
- Buddleia asiatica, Dog tail, huelo ilio
- Buddleia madagascariensis, Smoke bush
- Caesalpinia decapetala, Catsclaw, popoki, wait-a-bit, Mysore thorn, puakelekino
- Casuarina equisetifolia, Ironwood, Australian pine, horsetail casuarina, coast she-oak, whistling pine, horsetail beefwood, Australian oak, swamp oak, toa (Samoa)
- Cenchrus ciliaris, Buffelgrass
- Cenchrus echinatus, Common sandbur
- Cestrum nocturnum, Night cestrum
- Cinnamomum burmannii, Padang cassia
- Citharexylum caudatum, Juniper berry
- Clerodendrum philippinum, Pikake honohono, pikake pilau
- Clidemia hirta, Koster's curse
- Clusia rosea, Autograph tree, copey
- Coccinia grandis, Ivy gourd, scarlet-fruited gourd
- Commelina diffusa, Spreading dayflower, honohono
- Cortaderia jubata, Jubatagrass, Andean pampasgrass
- Corynocarpus laevigatus, Karakanut, New Zealand laurel
- Datura stramonium, Jimsonweed, thornapple
- Delairea odorata, Cape ivy, German ivy
- Digitaria insularis, Sourgrass
- Elephantopus mollis, Elephantsfoot
- Elephantopus spicatus, False elephantsfoot
- Emex spinosa, Spiny emex
- Erigeron karvinskianus, Daisy fleabane
- Eriobotrya japonica, Loquat
- Ficus microcarpa, Chinese banyan, Malayan banyan
- Fraxinus uhdei, Tropical ash, Mexican ash, Hawaiian ash, shamal ash, fresno (Spanish)
- Furcraea foetida, Mauritius hemp
- Glycine wightii, Tinaroo glycine
- Grevillea banksii, Kahili flower tree
- Grevillea robusta, Silk oak, silver oak, oka kilika, haiku keokeo
- Hedychium coronarium, White ginger
- Heliocarpus popayanensis, White moho
- Heterocentron subtriplinervium, Pearl flower
- Hibiscus tiliaceus, Hau
- Hiptage benghalensis, Hiptage
- Holcus lanatus, Common velvetgrass, Yorkshire fog
- Jasminum fluminense, Brazilian jasmine
- Juncus effusus, Japanese mat rush
- Justicia betonica, White shrimp plant
- Kalanchoe pinnata, Air plant
- Lantana camara, Largeleaf lantana
- Leptospermum scoparium, New Zealand tea tree, manuka
- Leucaena leucocephala, koa haole, tangan-tangan (Guam, CNMI), ipil-ipil (Philippines), lamtoro (Indonesia), leadtree
- Ligustrum sinense, Chinese privet
- Lonicera japonica, Japanese honeysuckle
- Malvastrum coromandelianum, False mallow
- Melaleuca quinquenervia, Paperbark, cajeput tree
- Melastoma candidum, Melastoma
- Melia azedarach, Chinaberry, pride of India, inia
- Melinis minutiflora, Molassesgrass
- Melochia umbellata, Melochia
- Merremia tuberosa, Wood rose
- Miconia calvescens, Velvet tree, miconia, purple plague
- Mimosa pudica, Hilahila , sensitive plant, sleeping grass
- Montanoa hibiscifolia, Tree daisy
- Morella faya, syn. Myrica faya, Fayatree
- Nicandra physalodes, Apple of Peru
- Olea europaea, Wild olive
- Oplismenus hirtellus, Basketgrass
- Paederia scandens, Maile pilau
- Panicum maximum, Guineagrass
- Panicum repens, Torpedograss, wainakugrass
- Paraserianthes falcataria, syn. Falcataria moluccana, Albizia falcataria, Albizia falcata, Molucca albizia, Moluccan sau, white siris
- Parthenium hysterophorus, Ragweed parthenium, false ragweed, Santa Maria
- Paspalum conjugatum, Sour paspalum, Hilo grass
- Paspalum urvillei, Vaseygrass
- Passiflora edulis, Passion fruit, purple granadilla, purple water lemon, lilikoi
- Passiflora suberosa, Huehue haole
- Passiflora tarminiana, Banana poka
- Pennisetum clandestinum, Kikuyugrass
- Pennisetum setaceum, Crimson fountaingrass
- Phyllostachys nigra, Black bamboo
- Physalis peruviana, Poha, cape gooseberry
- Pinus patula, Jelecote pine, Mexican weeping pine
- Pithecellobium dulce, Opiuma , Manila tamarind
- Pluchea carolinensis, Sourbush
- Pluchea indica, Indian fleabane, Indian pluchea
- Prosopis juliflora, Mesquite, long-thorn kiawe
- Prosopis pallida, Kiawe, algaroba
- Psidium cattleianum, Strawberry guava, waiawi
- Psidium guajava, Guava
- Pyracantha angustifolia, Firethorn
- Rhizophora mangle, American mangrove, red mangrove
- Rhodomyrtus tomentosa, Downy rosemyrtle, Isenberg bush
- Rhynchelytrum repens, Natal redtop
- Ricinus communis, Castor bean
- Rivina humilis, Coral berry
- Rosa laevigata, Cherokee rose
- Rubus argutus, Highbush blackberry, prickly Florida blackberry
- Rubus ellipticus, Yellow Himalayan raspberry
- Rubus niveus, Hill raspberry, Mysore raspberry
- Rubus rosifolius, Thimbleberry
- Sacciolepis indica, Glenwoodgrass
- Salsola kali, Russian thistle, tumbleweed
- Schefflera actinophylla, Octopus tree
- Schinus terebinthifolius, Brazilian peppertree, Christmasberry, wilelaiki
- Schizachyrium condensatum, bushy beardgrass
- Senecio madagascariensis, Madagascar ragwort, Madagascar fireweed, variable groundsel
- Senna alata, Candle bush
- Senna pendula
- Senna surattensis, Kolomona, kalamona
- Setaria palmifolia, Palmgrass
- Sida rhombifolia, Arrowleaf sida, Cuba jute
- Solanum linnaeanum, Apple of Sodom
- Solanum torvum, Turkeyberry
- Spathodea campanulata, African tuliptree
- Sphaeropteris cooperi, Australian tree fern
- Sphagneticola trilobata, Wedelia
- Sporobolus indicus, West Indian dropseed, smutgrass, rattail grass
- Stachytarpheta dichotoma, Joee, oi, blue rattail
- Syzygium cumini, Java plum
- Syzygium jambos, Roseapple
- Tagetes minuta, Stinkweed
- Tetrazygia bicolor, Tetrazygia
- Themeda villosa, Lyonsgrass
- Thunbergia grandifolia, Bengal trumpet, blue trumpet vine
- Tibouchina herbacea, Cane tibouchina
- Tibouchina urvilleana, Glorybush, lasiandra, princess flower
- Trema orientalis, Gunpowder tree, charcoal tree
- Triumfetta rhomboidea, Bur bush
- Triumfetta semitriloba, Sacramento bur
- Ulex europaeus, Gorse, furze
- Urena lobata, Aramina
- Verbascum thapsus, Common mullein
- Verbena litoralis, Seashore vervain, joee, oi
- Xanthium strumarium, Common cockelbur, kikania