Flora of Macquarie Island

Puccinellia macquariensis is a species of salt-tolerant, perennial, tufted grass in the family Poaceae. It is endemic to Australia's subantarctic Macquarie Island in the Southern Ocean, though very closely related to P. chathamica of New Zealand's southern offshore islands. It grows to between 4 and 25 cm in height and is common in dense patches on coastal cliffs and stacks. It flowers from November to June.

Azorella macquariensis, also known as Macquarie azorella or Macquarie cushions, is a species of cushion plant endemic to Australia’s subantarctic Macquarie Island. It was referred to the more widely distributed Azorella selago until 1989, when it was described as a separate species.

Corybas sulcatus, also known as the grooved helmet-orchid, is one of two helmet orchids endemic to Australia's subantarctic Macquarie Island, and the second to be discovered. The Latin specific epithet sulcatus means "grooved”, with reference to the prominent groove in the labellum boss. It is a small, terrestrial, tuberous, herbaceous plant that forms clonal colonies. The flower is erect, mostly dark red, 25–30 mm long and 10–14 mm wide. The flowering period is November–December. It occurs on the plateau uplands of the island, growing in wet grassy seepage areas. It can be distinguished from

Pleurophyllum is a genus of subantarctic plants in the tribe Astereae within the family Asteraceae. Pleurophyllum is native to the subantarctic islands of New Zealand (the Auckland Islands, Campbell Island and the Antipodes Islands) and Australia (Macquarie Island). Species Pleurophyllum criniferum Hook.f., = P. oresigenesum, Albinia oresigenesum Pleurophyllum hookeri Buch. Pleurophyllum speciosum Hook.f.

Poa litorosa is a species of tussock grass that is native to the subantarctic islands of New Zealand and Australia. The specific epithet litorosa comes from the Latin litoralis (“pertaining to the seashore”).

Azorella polaris, commonly known as the Macquarie Island cabbage, is a species of flowering plant usually placed in the family Araliaceae or Apiaceae and only very distantly related to cabbage. It is a megaherb, growing up to about a metre in height, native to the subantarctic islands of New Zealand and to Australia's Macquarie Island.

Acaena minor is a species of flowering plant whose range is confined to Australia's subantarctic Macquarie Island and to New Zealand's Campbell and Auckland Islands in the Southern Ocean.

Pleurophyllum hookeri, also known as the silver-leaf daisy or sage-green rosette herb, is a herbaceous plant in the family Asteraceae, a megaherb native to the subantarctic Auckland and Campbell Islands of New Zealand and Australia’s Macquarie Island. It grows up to 900 mm in height and has crimson button flowers and long, silky, silver leaves, with a large carrot-like tuber and long roots. It also has the unusual feature of a vertically contractile stem, most of which is underground, which serves to keep the leaf rosette close to the ground surface and the plant anchored securely against the

Carex erebus (common name - Hookers bastard grass) is a member of the sedge family and is found on the Antarctic Islands of Australia and New Zealand.

Poa foliosa is a species of tussock grass commonly known as muttonbird poa. It is native to the subantarctic islands of New Zealand and Australia.

Ranunculus crassipes is a small flowering plant in the buttercup or crowfoot family Ranunculaceae that is native to the subantarctic region. The specific epithet comes from the Latin and refers to the plant's thicker and more succulent form compared to the closely related R. biternatus.

Luzula crinita is a species of flowering plant in the rush family that is native to the subantarctic islands of New Zealand and Australia. The specific epithet comes from the Latin crinitus (hairy tufted), with reference to the leaves.

Deschampsia chapmanii is a plant species in the grass (Poaceae) family, native to New Zealand and Macquarie Island.

Colobanthus muscoides is a low-growing, moss-like flowering cushion plant in the family Caryophyllaceae, found on islands in the south-western Pacific Ocean, especially in the subantarctic region. The specific epithet comes from the Latin muscus (moss) and -oides (resembling), with reference to its growth habit.

Carex edura is a perennial sedge of the Cyperaceae family that is native to Macquarie Island as well as the North Island and South Island and the Antipodean Islands of New Zealand.

Cardamine corymbosa, commonly known as the New Zealand bitter-cress, is a flowering plant in the family Brassicaceae. Native to the subantarctic islands of Australasia, it has become an invasive species in plant nurseries. The specific epithet refers to the structure of the inflorescence.

Epilobium brunnescens is a flowering plant in the willowherb family Onagraceae. It is a small, creeping, perennial plant with white or pale pink flowers. It is native to New Zealand and south-east Australia and has been introduced to Northern Europe. Its common names include New Zealand willowherb in Great Britain and Ireland, creeping willowherb in New Zealand and bog willowherb for the Australian subspecies.

Polystichum vestitum, commonly known as the prickly shield fern or pūnui (Māori), is a hardy, evergreen or semi-evergreen ground fern.

Poa cookii, sometimes called Cook's tussock-grass or bluegrass, is a species of tussock grass native to various subantarctic islands. The specific epithet honours British explorer James Cook who visited the Kerguelen Islands in 1776.

Epilobium pedunculare (E. linnaeoides), the rockery willowherb, is a species of Epilobium similar to E. brunnescens. It is found on the Antipodean Islands, Chatham Island, Macquarie Island, and both the North and South Island of New Zealand.

Leptinella plumosa is a small flowering plant in the daisy family. It is a circumantarctic species found on many subantarctic islands in the Southern Ocean. The specific epithet comes from the Latin for “feathery”, referring to the form of the leaves.

Carex trifida, the mutton-bird sedge, is a species of flowering plant in the family Cyperaceae, native to Macquarie Island of Australia, the South Island, the Antipodes Islands, and the Chatham Islands of New Zealand, southern Chile, and the Falkland Islands. There are a number of cultivars, including 'Rekohu Sunrise', 'Glauca', and 'Chatham Blue'.

Festuca contracta, commonly known as tufted fescue or land tussac, is a species of true grass (Poaceae). It is native to many subantarctic islands in, and the coasts bordering, the Southern Ocean. The specific epithet comes from the Latin contractus (compressed or contracted), with reference to the inflorescence.

Corybas dienemus, commonly known as the windswept helmet-orchid, is one of two helmet orchids endemic to Australia's subantarctic Macquarie Island, and the first orchid to be found there. It is a relatively small orchid with green flowers with purplish-red markings and was discovered in 1978.

Coprosma perpusilla, commonly known as creeping coprosma, is a species of flowering plant in the family Rubiaceae. It is found in Australia, New Zealand and on some subantarctic islands. The specific epithet comes from the Latin per (very) and pusillus (very small), referring to the growth habit.

Galium antarcticum, commonly known as Antarctic bedstraw or subantarctic bedstraw, is a species of flowering plant in the coffee family. It has a largely subantarctic range.

Hymenophyllum falklandicum, the Falklands filmy fern, is a plant in the fern family Hymenophyllaceae. It is native to Patagonia and some subantarctic islands.

Huperzia australiana is a species of small terrestrial plant, a firmoss, in the Lycopodiaceae (clubmoss) family. It is native to Australia and New Zealand.

Acaena magellanica, commonly called buzzy burr or greater burnet, is a species of flowering plant whose range includes the southern tip of South America and many subantarctic islands.

Crassula moschata, commonly known as the Shore Stonecrop, Musky Stonecrop, or Musky Crassula, is a hairless, mat-forming, succulent, perennial herb. It is widespread on the subantarctic and cool temperate shores of the Southern Ocean.