PEP Species List, as of February 22, 2016.

PEP Species List, as of February 22, 2016. There are currently 238 PEP species, meaning, they have 50 or fewer plants remaining of the species/taxon. This alphabetical list also provides their island distributions and their island-specific PEP Designations. Definitions for each of the designations are provided at the end of this table. Taxon Distribution Island-Specific Designation 1 Abutilon eremitopetalum Lana`i PEP 2 Acaena exigua Kaua`i PEP-EXTIRPATED Acaena exigua Maui PEP-EXTIRPATED? 3 Achyranthes mutica Hawai`i PEP Achyranthes mutica Kauai PEP-EXTIRPATED 4 Adenophorus periens Lana`i PEP-EXTIRPATED Adenophorus periens Hawai`i PEP Adenophorus periens Maui PEP-EXTIRPATED Adenophorus periens O`ahu PEP-EXTIRPATED Adenophorus periens Moloka`i PEP-EXTIRPATED Adenophorus periens Kaua`i PEP 5 Alectryon macrococcus var. auwahiensis Maui PEP 6 Argyroxiphium sandwicense subsp. sandwicense Hawai`i PEP 7 Argyroxiphium virescens Maui PEP-EXTINCT? 8 Asplenium dielerectum (f. alexandri) Maui PEP Asplenium dielerectum (f. alexandri) Moloka`i PEP-EXTIRPATED 9 Asplenium dielerectum (f. erecta) Hawai`i PEP Asplenium dielerectum (f. erecta) Lana`i PEP-EXTIRPATED Asplenium dielerectum (f. erecta) Maui PEP Asplenium dielerectum (f. erecta) Moloka`i PEP-EXTIRPATED? Asplenium dielerectum (f. erecta) O`ahu PEP 10 Asplenium diellaciniatum Kaua`i PEP 11 Asplenium dielmannii Kaua`i PEP 12 Asplenium dielpallidum Kaua`i PEP 13 Astelia waialealae Kaua`i PEP 14 Brighamia insignis Ni`ihau PEP-EXTIRPATED? Brighamia insignis Kaua`i PEP 15 Brighamia rockii Moloka`i PEP Brighamia rockii Lana`i PEP-EXTIRPATED Brighamia rockii Maui PEP-EXTIRPATED 16 Canavalia pubescens Lana`i PEP-EXTIRPATED? Canavalia pubescens Ni`hau PEP-EXTIRPATED? Canavalia pubescens Kaua`i PEP-EXTIRPATED? Canavalia pubescens Maui PEP 17 Clermontia oblongifolia subsp. brevipes Moloka`i PEP 18 Clermontia peleana subsp. peleana Hawai`i PEP 19 Clermontia peleana subsp. singuliflora Maui PEP-EXTIRPATED 1

Clermontia peleana subsp. singuliflora Hawai`i PEP 20 Clermontia pyrularia Hawai`i PEP 21 Clermontia samuelii subsp. samuelii Maui PEP 22 Coprosma kawaikiniensis Kaua`i PEP 23 Cryptocarya oahuensis O`ahu PEP 24 Cyanea cf. fernaldii Hawai`i PEP 25 Cyanea copelandii subsp. copelandii Hawai`i PEP-EXTINCT? 26 Cyanea crispa O`ahu PEP 27 Cyanea dolichopoda Kaua`i PEP-EXTINCT? 28 Cyanea dunbariae Moloka`i PEP 29 Cyanea eleeleensis Kaua`i PEP-EXTINCT? 30 Cyanea gibsonii Lana`i PEP 31 Cyanea grimesiana subsp. grimesiana Moloka`i PEP-EXTIRPATED Cyanea grimesiana subsp. grimesiana O`ahu PEP-Extinct in Wild 32 Cyanea grimesiana subsp. obatae O`ahu PEP 33 Cyanea hamatiflora subsp. carlsonii Hawai`i PEP 34 Cyanea horrida Maui PEP 35 Cyanea kauaulaensis Maui PEP 36 Cyanea kolekoleensis Kaua`i PEP-EXTINCT? 37 Cyanea konahuanuiensis O`ahu PEP 38 Cyanea kuhihewa Kaua`i PEP-EXTINCT? 39 Cyanea lobata subsp. baldwinii Lana`i PEP 40 Cyanea lobata subsp. lobata Maui PEP 41 Cyanea magnicalyx Maui PEP 42 Cyanea maritae Maui PEP 43 Cyanea marksii Hawai`i PEP 44 Cyanea munroi Lana`i PEP Cyanea munroi Moloka`i PEP-EXTIRPATED? 45 Cyanea obtusa Maui PEP 46 Cyanea pinnatifida O`ahu PEP-Extinct in wild 47 Cyanea procera Moloka`i PEP 48 Cyanea profuga Moloka`i PEP 49 Cyanea purpurellifolia O`ahu PEP 50 Cyanea pycnocarpa Hawai`i PEP-EXTINCT? 51 Cyanea remyi Kaua`i PEP 52 Cyanea rivularis Kaua`i PEP 53 Cyanea shipmanii Hawai`i PEP 54 Cyanea solanacea Moloka`i PEP 55 Cyanea st.-johnii O`ahu PEP 56 Cyanea stictophylla Hawai`i PEP 57 Cyanea superba subsp. superba O`ahu PEP-Extinct in wild 58 Cyanea truncata O`ahu PEP 59 Cyanea undulata Kaua`i PEP 60 Cyperus neokunthianus Maui PEP-EXTINCT? 61 Cyrtandra ferripilosa Maui PEP 62 Cyrtandra filipes Maui PEP Cyrtandra filipes Moloka`i PEP-EXTIRPATED? 2

63 Cyrtandra gracilis O`ahu PEP 64 Cyrtandra hematos Moloka`i PEP 65 Cyrtandra kaulantha O`ahu PEP 66 Cyrtandra paliku Kaua`i PEP 67 Cyrtandra polyantha O`ahu PEP 68 Cyrtandra viridiflora O`ahu PEP 69 Cyrtandra wagneri Hawai`i PEP 70 Cyrtandra waiolani O`ahu PEP 71 Delissea argutidentata Hawai`i PEP-Extinct in wild 72 Delissea kauaiensis Kaua`i PEP 73 Delissea rhytidosperma Kaua`i PEP-Extinct in wild 74 Delissea waianaeensis O`ahu PEP 75 Deparia kaalaana Maui PEP Deparia kaalaana Kaua`i PEP-EXTIRPATED Deparia kaalaana Hawai`i PEP-EXTIRPATED 76 Diplazium molokaiense Lana`i PEP-EXTIRPATED Diplazium molokaiense Moloka`i PEP-EXTIRPATED Diplazium molokaiense Maui PEP Diplazium molokaiense Kaua`i PEP-EXTIRPATED Diplazium molokaiense O`ahu PEP-EXTIRPATED? 77 Dryopteris crinalis var. podosorus Kaua`i PEP 78 Dubautia kalalauensis Kaua`i PEP 79 Dubautia kenwoodii Kaua`i PEP-EXTINCT? 80 Dubautia pauciflorula Kaua`i PEP 81 Dubautia plantaginea subsp. humilis Maui PEP 82 Eragrostis fosbergii O`ahu PEP-EXTINCT? 83 Euphorbia eleanoriae Kaua`i PEP 84 Euphorbia herbstii O`ahu PEP 85 Euphorbia remyi var. hanaleiensis Kaua`i PEP-EXTINCT? 86 Flueggea neowawraea Moloka`i PEP-EXTIRPATED Flueggea neowawraea Hawai`i PEP Flueggea neowawraea Maui PEP Flueggea neowawraea O`ahu PEP Flueggea neowawraea Kaua`i PEP 87 Gardenia brighamii Moloka`i PEP-Extirpated in Wild Gardenia brighamii Hawai`i PEP-EXTIRPATED Gardenia brighamii Lana`i PEP Gardenia brighamii O`ahu PEP Gardenia brighamii Maui PEP-EXTIRPATED 88 Geranium arboreum Maui PEP 89 Gouania meyenii O`ahu PEP Gouania meyenii Kaua`i PEP 90 Gouania vitifolia O`ahu PEP Gouania vitifolia Hawai`i PEP Gouania vitifolia Maui PEP-EXTIRPATED 91 Hesperomannia oahuensis O`ahu PEP 92 Hibiscadelphus distans Kaua`i PEP 3

93 Hibiscadelphus giffardianus Hawai`i PEP-Extinct in Wild 94 Hibiscadelphus hualalaiensis Hawai`i PEP-Extinct in Wild 95 Hibiscadelphus stellatus Maui PEP 96 Hibiscadelphus woodii Kaua`i PEP-EXTINCT? 97 Hibiscus brackenridgei subsp. brackenridgei Moloka`i PEP-EXTIRPATED Hibiscus brackenridgei subsp. brackenridgei Maui PEP Hibiscus brackenridgei subsp. brackenridgei Hawai`i PEP Hibiscus brackenridgei subsp. brackenridgei Lana`i PEP 98 Huperzia nutans O`ahu PEP Huperzia nutans Kaua`i PEP-EXTIRPATED? 99 Huperzia stemmermanniae Maui PEP-EXTIRPATED? Huperzia stemmermanniae Hawai`i PEP 100 Isodendrion pyrifolium Maui PEP-EXTIRPATED Isodendrion pyrifolium Lana`i PEP-EXTIRPATED Isodendrion pyrifolium Moloka`i PEP-EXTIRPATED Isodendrion pyrifolium O`ahu PEP-EXTIRPATED Isodendrion pyrifolium Ni`ihau PEP Isodendrion pyrifolium Hawai`i PEP 101 Kadua cordata subsp. remyi Lana`i PEP 102 Kadua degeneri var. coprosmifolia O`ahu PEP-EXTINCT? 103 Kadua haupuensis Kaua`i PEP-Extinct in wild 104 Kadua laxiflora Lana`i PEP-Extirpated in Wild Kadua laxiflora Moloka`i PEP-EXTIRPATED? Kadua laxiflora Maui PEP-EXTIRPATED? 105 Kadua st.-johnii Kaua`i PEP 106 Kanaloa kahoolawensis Kaho`olawe PEP 107 Kokia cookei Moloka`i PEP-Extinct in wild 108 Kokia drynarioides Hawai`i PEP 109 Kokia kauaiensis Kaua`i PEP 110 Labordia cyrtandrae O`ahu PEP 111 Labordia lorenciana Kaua`i PEP 112 Labordia lydgatei Kaua`i PEP 113 Labordia tinifolia var. lanaiensis Lana`i PEP 114 Labordia tinifolia var. wahiawaensis Kaua`i PEP 115 Labordia triflora Moloka`i PEP 116 Lepidium orbiculare Kaua`i PEP 117 Lobelia dunbariae subsp. dunbariae Moloka`i PEP-EXTINCT? 118 Lobelia monostachya O`ahu PEP 119 Lobelia oahuensis O`ahu PEP 120 Lysimachia iniki Kaua`i PEP 121 Lysimachia lydgatei Maui PEP 122 Lysimachia maxima Moloka`i PEP 123 Lysimachia ovoidea Kaua`i PEP 124 Lysimachia pendens Kaua`i PEP 125 Lysimachia scopulensis Kaua`i PEP 126 Lysimachia sp. nov. (Kauai) Kaua`i PEP 127 Lysimachia venosa Kaua`i PEP 4

128 Melanthera kamolensis Maui PEP 129 Melanthera micrantha subsp. micrantha Kaua`i PEP 130 Melanthera populifolia Lana`i PEP-EXTINCT? 131 Melanthera waimeaensis Kaua`i PEP 132 Melicope adscendens Maui PEP 133 Melicope cf. reflexa Moloka`i PEP 134 Melicope degeneri Kaua`i PEP 135 Melicope haupuensis Kaua`i PEP 136 Melicope hiiakae O`ahu PEP 137 Melicope knudsenii Kaua`i PEP Melicope knudsenii Maui PEP 138 Melicope lydgatei O`ahu PEP 139 Melicope mucronulata Moloka`i PEP Melicope mucronulata Maui PEP-EXTIRPATED 140 Melicope quadrangularis Kaua`i PEP 141 Melicope sp. nov. (Kauai) Kaua`i PEP 142 Melicope sp. nov. (West Maui) Maui PEP 143 Melicope wailauensis Moloka`i PEP-EXTINCT? 144 Melicope zahlbruckneri Hawai`i PEP 145 Myrsine knudsenii Kaua`i PEP 146 Myrsine mezii Kaua`i PEP 147 Neraudia angulata var. dentata O`ahu PEP 148 Neraudia ovata Hawai`i PEP 149 PEP-EXTIRPATED (PEP- Neraudia sericea Kaho`olawe Extinct?) Neraudia sericea Moloka`i PEP Neraudia sericea Maui PEP Neraudia sericea Lana`i PEP-EXTIRPATED (PEP- Extinct?) 150 Nothocestrum peltatum Kaua`i PEP 151 Panicum niihauense Ni`ihau PEP-EXTIRPATED Panicum niihauense Kaua`i PEP 152 Peperomia degeneri Moloka`i PEP-EXTINCT? 153 Peperomia subpetiolata Maui PEP 154 Phyllostegia bracteata Maui PEP 155 Phyllostegia brevidens Maui PEP Phyllostegia brevidens Hawai`i PEP 156 Phyllostegia floribunda Hawai`i PEP 157 Phyllostegia haliakalae Maui PEP Phyllostegia haliakalae Lana`i PEP-EXTIRPATED Phyllostegia haliakalae Moloka`i PEP-EXTIRPATED 158 Phyllostegia helleri Kaua`i PEP 159 Phyllostegia hirsuta O`ahu PEP 160 Phyllostegia hispida Moloka`i PEP 161 Phyllostegia kaalaensis O`ahu PEP-Extinct in wild 162 Phyllostegia knudsenii Kaua`i PEP-EXTINCT? 163 Phyllostegia mannii Maui PEP-EXTIRPATED 5

Phyllostegia mannii Moloka`i PEP 164 Phyllostegia mollis O`ahu PEP 165 Phyllostegia parviflora var. glabriuscula Hawai`i PEP 166 Phyllostegia parviflora var. lydgatei O`ahu PEP-Extinct in Wild 167 Phyllostegia parviflora var. parviflora O`ahu PEP Phyllostegia parviflora var. parviflora Maui PEP-EXTIRPATED 168 Phyllostegia pilosa Maui PEP Phyllostegia pilosa Moloka`i PEP-EXTIRPATED 169 Phyllostegia racemosa Hawai`i PEP 170 Phyllostegia stachyoides Maui PEP Phyllostegia stachyoides Hawai`i PEP Phyllostegia stachyoides Moloka`i PEP 171 Phyllostegia waimeae Kaua`i PEP 172 Phyllostegia warshaueri Hawai`i PEP 173 Phyllostegia wawrana Kaua`i PEP 174 Pittosporum halophilum Moloka`i PEP 175 Pittosporum hawaiiense Hawai`i PEP 176 Plantago hawaiensis Hawai`i PEP 177 Plantago princeps var. anomala O`ahu N/A Plantago princeps var. anomala Kaua`i PEP 178 Plantago princeps var. laxifolia Hawai`i PEP-EXITRPATED? Plantago princeps var. laxifolia Maui PEP Plantago princeps var. laxifolia Moloka`i PEP-EXTIRPATED? 179 Platanthera holochila Moloka`i PEP Platanthera holochila Maui PEP Platanthera holochila O`ahu PEP-EXTIRPATED Platanthera holochila Kaua`i PEP 180 Platydesma cornuta var. cornuta O`ahu PEP 181 Platydesma remyi Hawai`I PEP 182 Polyscias bisattenuata Kaua`i PEP 183 Polyscias flynnii Kaua`i PEP 184 Polyscias lydgatei O`ahu PEP 185 Portulaca sclerocarpa Lana`i PEP Portulaca sclerocarpa Hawai`I PEP 186 Pritchardia bakeri O`ahu PEP 187 Prtichardia gordonii Hawai`i PEP 188 Pritchardia kahukuensis O`ahu PEP 189 Pritchardia maideniana Hawai`i PEP 190 Pritchardia munroi Moloka`i PEP 191 Pritchardia schattaueri Hawai`i PEP 192 Pritchardia viscosa Kaua`i PEP 193 Psychotria grandiflora Kaua`i PEP 194 Psychotria hexandra subsp. oahuensis var. oahuensis O`ahu PEP 195 Pteris lidgatei Moloka`i PEP Pteris lidgatei Maui PEP Pteris lidgatei O`ahu PEP 6

196 Ranunculus hawaiensis Hawai`i PEP Ranunculus hawaiensis Maui PEP 197 Remya montgomeryi Kaua`i PEP 198 Scaevola hobdyi Maui PEP-EXTINCT? 199 Schiedea adamantis O`ahu PEP 200 Schiedea attenuata Kaua`i PEP 201 Schiedea diffusa subsp. macraei Hawai`i PEP 202 Schiedea haleakalensis Maui PEP 203 Schiedea hawaiiensis Hawai`i PEP 204 Schiedea jacobii Maui PEP-Extinct in Wild 205 Schiedea kaalae O`ahu PEP 206 Schiedea kauaiensis Kaua`i PEP 207 Schiedea laui Moloka`i PEP 208 Schiedea membranacea Kaua`i PEP 209 Schiedea nuttalii O`ahu PEP Schiedea nuttalii Maui PEP-EXTIRPATED Schiedea nuttalii Moloka`i PEP-EXTIRPATED 210 Schiedea obovata O`ahu PEP 211 Schiedea perlmanii Kaua`i PEP 212 Sicyos albus Hawai`i PEP 213 Sicyos hillebrandii Maui PEP 214 Sicyos lanceoloideus O`ahu PEP Sicyos lanceoloideus Kaua`i PEP 215 Sicyos macrophyllus Hawai`i PEP 216 Silene alexandri Moloka`i PEP 217 Silene perlmanii O`ahu PEP-Extinct in Wild 218 Solanum sandwicense O`ahu PEP-Extirpated in Wild Solanum sandwicense Kaua`i PEP 219 Stenogyne bifida Moloka`i PEP 220 Stenogyne campanulata Kaua`i PEP 221 Stenogyne cranwelliae Hawai`i PEP 222 Stenogyne kaalae subsp. sherffii O`ahu PEP-Extinct in Wild 223 Stenogyne kanehoana O`ahu PEP 224 Stenogyne kauaulaensis Maui PEP 225 Stenogyne kealiae Kaua`i PEP 226 Tetramolopium capillare Maui PEP-EXTINCT? 227 Tetramolopium lepidotum subsp. lepidotum Lana`i PEP-EXTIRPATED Tetramolopium lepidotum subsp. lepidotum O`ahu PEP 228 Tetramolopium remyi Lana`i PEP Tetramolopium remyi Maui PEP-EXTIRPATED 229 Urera kaalae O`ahu PEP 230 Vicia menziesii Hawai`i PEP 231 Viola helenae Kaua`i PEP 232 Viola kauaensis var. hosakae O`ahu PEP 233 Viola kauaensis var. wahiawaensis Kaua`i PEP 234 Wikstroemia skottsbergiana Kaua`i PEP 235 Wikstroemia villosa Maui PEP 7

236 Xylosma crenatum Kaua`i PEP 237 Zanthoxylum dipetalum var. tomentosum Hawai`i PEP 238 Zanthoxylum oahuense O`ahu PEP Designation Definitions PEP = Plant Extinction Prevention = Taxon has fewer than 50 individuals in the wild PEP-Extinct in wild = Wild founders extinct, outplanted progeny exists that serve as founders; taxon has fewer than 50 individuals in the wild. PEP-Extirpated in wild = wild founders extirpated on the island, outplanted progeny exists that serve as founders; taxon has fewer than 50 individuals in the wild. PEP-EXTINCT? = (Possibly extinct) Taxon not seen for over 20 years, habitat remains, some hope of discovery remains (refers to entire species) POP = POtentially PEP = Taxon has more than 50 but extremely vulnerable ROI = Rare On Island = Taxon that occurs on other islands but is rare on a particular island (<50) EXTIRPATED? = (Possibly extirpated) Taxon not seen for over 20 years; habitat remains, some hope of discovery remains (refers to island-level extirpations) EXTIRPATED = Not located despite extensive searches, very little hope of discovery remains (refers to island-level extirpations) EXTINCT = Not located despite extensive searches, very little hope of discovery remains TBD = To be determined. 8