Scientific Plant Names
Species: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| (Linked to Species Profile) | Common Name | Hawaiian Name | Park Status | Abundance | Nativity | Photo |
| Rapanea myricifolia | togo vao | Probably Present | Occasional | Native | ||
| Reynoldsia lanutoensis | vi vao | reynoldsia | Present in Park | Common | Native | |
| Rhaphidophora graeffei | fue laufao | Present in Park | Common | Native | ||
| Rhizophora mangle | togo | red mangrove | Probably Present | Common | Native | |
| Rhizophora samoensis | Probably Present | Common | Native | |||
| Rhus taitensis | tavai | Present in Park | Common | Native | ||
| Rhynchospora corymbosa | selesele | matamat | Present in Park | Common | Native | |
| Ricinus communis | castor bean | Probably Present | Uncommon | Non-Native | ||
| Rorippa sarmentosa | a'atasi | Polynesian cress | Present in Park | Occasional | Native | |
| Rourea minor | Present in Park | Occasional | Native | |||
| Ruellia prostrata | vao uli | prostrate wild petunia | Present in Park | Common | Non-Native | |
| Ruellia tuberosa | minnieroot | Probably Present | Uncommon | Non-Native | ||
| Sacciolepis indica | glenwoodgrass | Probably Present | Uncommon | Non-Native | ||
| Santaloides samoense | Present in Park | Uncommon | Native | |||
| Sapindus saponaria | western soapberry, wingleaf soapberry | Present in Park | Rare | Native | ||
| Sapindus vitiensis | Present in Park | Rare | Native | |||
| Sarcopygme pacifica | u'unu | |||||
| Scaevola taccada | to'ito'i | scaevola | Present in Park | Abundant | Native | |
| Schizaea dichotoma | Present in Park | Uncommon | Native | |||
| Schizostachyum glaucifolium | 'ohe | bamboo | Unconfirmed | Non-Native | ||
| Scirpodendron ghaeri | lau 'ie'ie | Present in Park | Rare | Native | ||
| Scleria lithosperma | Florida Keys nutrush | Present in Park | Occasional | Native | ||
| Scleria polycarpa | tafatolu; selesele | nutrush | Present in Park | Occasional | Native | |
| Scleria terrestris | Present in Park | Uncommon | Native | |||
| Selaginella laxa | Present in Park | Uncommon | Native | |||
| Selaginella whitmeei | Present in Park | Occasional | Native | |||
| Senna alata | la'au fai lafa | emperor's candlesticks, candelabra plant | Probably Present | Uncommon | Non-Native | |
| Senna sophera | algarrobilla | Probably Present | Rare | Non-Native | ||
| Senna tora | vao pinati | sickle senna, peanut weed | Probably Present | Common | Non-Native | |
| Sesuvium portulacastrum | shoreline seapurslane | Present in Park | Uncommon | Native | ||
| Setaria glauca | pearl millet, pigeongrass, wild millet, yellow bristlegrass, yellow foxtail | Probably Present | Occasional | Non-Native | ||
| Sida rhombifolia | mautofu | Cuban-jute, arrowleaf sida, cuban jute | Present in Park | Common | Non-Native | |
| Sida samoensis | Probably Present | Uncommon | Native | |||
| Sigesbeckia orientalis | common St. Paul's wort | Probably Present | Uncommon | Non-Native | ||
| Solanum americanum | mgalo | black nightshade, purple nightshade (common), smallflower nightshade | Present in Park | Uncommon | Native | |
| Solanum viride | polo | green nightshade | Probably Present | Rare | Native | |
| Sophora tomentosa | yellow necklacepod, yellow sophora, (silverbush) | Present in Park | Rare | Native | ||
| Sorghum sudanense | Probably Present | Uncommon | Non-Native | |||
| Spathoglottis plicata | Philippine ground orchid | Present in Park | Common | Native | ||
| Spermacoce assurgens | woodland false buttonweed | Present in Park | Common | Non-Native | ||
| Spermacoce exilis | Pacific false buttonweed | Present in Park | Uncommon | Non-Native | ||
| Spermacoce mauritiana | Mauritius' false buttonweed | Present in Park | Uncommon | Non-Native | ||
| Spermacoce ovalifolia | broadleaf false buttonweed | Present in Park | Non-Native | |||
| Sphaerostephanos invisus | Present in Park | Occasional | Native | |||
| Sphaerostephanos reineckei | Present in Park | Uncommon | Native | |||
| Sphaerostephanos unitus | Present in Park | Uncommon | Native | |||
| Sphagneticola trilobata | Bay Biscayne creeping-oxeye | Probably Present | Uncommon | Non-Native | ||
| Sphenomeris chinensis | lace
fern | Present in Park | Uncommon | Native | ||
| Spiraeanthemum samoense | Present in Park | Common | Native | |||
| Spondias dulcis | vi | Jewish plum, ambarella | Present in Park | No data | Non-Native | |
| Sporobolus diander | tussock dropseed | Present in Park | Common | Non-Native | ||
| Stachytarpheta cayennensis | Cayenne snakeweed, blue snakeweed, bluetop, cayenne porterweed, rattail, rough-leaf false vervain, snakeweed | Present in Park | Common | Non-Native | ||
| Stachytarpheta jamaicensis | light-blue snakeweed ; Jamaica vervain | Probably Present | Uncommon | Non-Native | ||
| Stachytarpheta urticifolia | mautofu, fua pepe | nettleleaf velvetberry; blue rat's-tail | ||||
| Stenotaphrum micranthum | Present in Park | Uncommon | Native | |||
| Stenotaphrum secundatum | St. Augustine grass | Probably Present | Uncommon | Non-Native | ||
| Sterculia fanaiho | fana'io | Present in Park | Occasional | Native | ||
| Stictocardia tiliifolia | spottedheart | Present in Park | Occasional | Non-Native | ||
| Streblus anthropophagorum | streblus | Present in Park | Occasional | Native | ||
| Struchium sparganophorum | yerba de faja | Probably Present | Occasional | Non-Native | ||
| Synedrella nodiflora | tae'oti | nodeweed | Present in Park | Common | Non-Native | |
| Syzygium brevifolium | Present in Park | Rare | Native | |||
| Syzygium carolinense | Present in Park | Uncommon | Native | |||
| Syzygium clusiifolium | asi vai | Present in Park | Common | Native | ||
| Syzygium dealatum | asi vai | Present in Park | Occasional | Native | ||
| Syzygium inophylloides | asi | Present in Park | Common | Native | ||
| Syzygium malaccense | Malaysian apple | Present in Park | ||||
| Syzygium neurocalyx | 'oli; fena | Probably Present | Rare | Native | ||
| Syzygium samarangense | nonu vao | syzygium | Present in Park | Common | Non-Native | |
| Syzygium samoense | fena vao | Present in Park | Occasional | Native |
Species: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z