| Scientific Name | Hawaiian
Name | Common Name | Photo | TSN | Park
Status | Abundance | Residency | Nativity |
| Bolboschoenus
maritimus ssp. paludosus | kaluha | bulrush |   | 525319
| Present in Park | Uncommon |  | Native
|
| Carex alligata |  | Hawaii
sedge  |  | 501202
| Probably Present |  |  | Endemic |
| Carex
meyenii |  | Meyen's
sedge |  | 501246
| Present in Park | Uncommon |  | Native
|
| Carex montis-eeka |  | Molokai
sedge  |  | 501248
| Present in Park | Rare |  | Native
|
| Carex wahuensis ssp. wahuensis |  | Oahu
sedge  |   | 523787
| Present in Park | Common |  | Native
|
| Cyperus brevifolius = Kyllinga brevifolia | kili'o'opu | green
kyllinga  |  | 39910
|  |  |  | |
| Cyperus
compressus |  | poorland
flatsedge |  | 39913
| Present in Park | Rare |  | Non-Native
|
| Cyperus fauriei |  | alpine
flatsedge  |  | 39980
| Present in Park | Rare |  | Native
|
| Cyperus gracilis | mau'u
hunehune | McCoy grass |  | 501925
| Present in Park | Uncommon |  | Non-Native
|
| Cyperus haspan |  | haspan
flatsedge  |  | 39930
| Present in Park | Rare |  | Non-Native
|
| Cyperus javanicus = Mariscus javanicus | 'ahu'awa | Javanese
flatsedge |   | 39983
| Present in Park | Rare |  | Native
|
| Cyperus phleoides var. phleoides |  | Molokai
flatsedge  |  | 527639
| Present in Park | Uncommon |  | Native
|
| Cyperus polystachyos | kilo'o'opu | manyspide
flatsedge |  | 39957
| Present in Park | Uncommon |  | Native
|
| Cyperus rotundus | kilo'o'opu | purple
nut sedge |  |  | Present
in Park |  |  | Non-Native
|
| Cyperus sandwicensis |  | cliffs
flatsedge  |  | 39989
| Present in Park | Rare |  | Native
|
| Eleocharis geniculata | kohekohe,
pipiwai | Canada spikesedge |  |
40046 | Present in Park | Rare |  |
Non-Native |
| Eleocharis obtusa | kohekohe,
pipiwai | blunt spikerush |  |
40017 | Present in Park | Rare |  |
Native |
| Fimbristylis cymosa | mau'u
'aki'aki | button sedge |
  |
40123 | Present in Park | Abundant |  |
Native |
| Fimbristylis cymosa ssp. umbellato-capitata
| mau'u 'aki'aki | button sedge |  |
| Present in Park | Abundant |  |
Native |
| Fimbristylis dichotoma |  | forked
fimbry  |
 |
40114 | Present in Park | Rare |  |
Native |
| Gahnia beecheyi | uki | forest
sawsedge  |  |
40336 | Present in Park | Rare |  |
Endemic |
| Kyllinga brevifolia = Cyperus brevifolius | kili'o'opu,
kaluha, manunene, mau'u mokae | green kyllinga |  |
503295 | Present in Park | Common |  |
Non-Native |
| Kyllinga nemoralis | kili'o'opu,
mau'u mokae | white kyllinga |   |
503296 | Present in Park | Rare |  |
Non-Native |
| Machaerina angustifolia | 'uki | Polynesian
twigrush  |    |
40343 | Present in Park | Common |  |
Native |
| Machaerina mariscoides ssp. meyenii | 'ahaniu
'uki | Meyen's twigrush |  |
524295 | Present in Park | Uncommon |  |
Native |
| Mariscus javanicus = Cyparus
javanicus | 'ahu'awa | Javanese
flatsedge |   |
516787 | Present in Park | Rare |  | Native |
|
Mariscus phleoides ssp. phleoides = Cyparus phleoides
= C. hawaiiensis |  |  |  |
|  |  |  | Native |
| Oreobolus
furcatus |  | Hawaii
Island sedge |
   |
40349 | Present in Park | Rare |  |
Native |
| Pycreus polystachyos |  |  |  |
519786 |  |  |  | |
| Rhynchospora
sclerioides | kuolohia | Hawaiian beaksedge |  |
40220 | Present in Park | Rare |  |
Native |