This plant list has been compiled by the stated observer(s) and been provided to NZPCN for public use in good faith. NZPCN cannot guarantee that data contained in these lists are up to date or accurate. Most species lists are not corroborated with herbarium specimens. Note, species lists are not typically an exhaustive presence/absence survey of an area and often may focus on a single habitat or only contain species visible at a particular time of year (for example, spring annual herbs may go unobserved during much of the year). These lists should not be solely relied on for the purpose of assessing environmental effects or for preparing restoration plans - for this work a site visit is critical.

Site name: Lake Omanu (LOMA)

List name: PCN326 WAN49

Source/Observer: PCN326 WAN49 CC Ogle

Number of observations: 63

District: Horowhenua District

Date: 16/12/1987

SpeciesStructural classConservation statusNative/Exotic
Agrostis capillaris
(browntop)
GrassesExotic
Agrostis stolonifera
(creeping bent)
GrassesExotic
Alisma plantago-aquatica
(water plantain)
Herbs - MonocotsExotic
Alopecurus geniculatus
(kneed foxtail)
GrassesExotic
Amaranthus retroflexus
(redroot)
Herbs - Dicotyledons other than CompositesExotic
Anthoxanthum odoratum
(sweet vernal)
GrassesExotic
Bellardia viscosa
(tarweed)
Herbs - Dicotyledons other than CompositesExotic
Callitriche stagnalis
(water starwort)
Herbs - Dicotyledons other than CompositesExotic
Calystegia sepium subsp. roseata
(pink bindweed)
Lianes & Related Trailing Plants - DicotyledonsNot ThreatenedNative
Carex maorica
(Māori sedge)
SedgesNot ThreatenedNative
Carex secta
(purei, pukio)
SedgesNot ThreatenedNative
Ceratophyllum demersum
(Hornwort, coontail)
Herbs - Dicotyledons other than CompositesExotic
Cirsium vulgare
(Scotch thistle)
Herbs - Dicotyledonous compositesExotic
Cordyline australis
(cabbage tree, tī, tī kōuka, palm lily)
Trees & Shrubs - MonocotyledonsNot ThreatenedNative
Cotula coronopifolia
(bachelor's button, yellow buttons, waterbuttons)
Herbs - Dicotyledonous compositesNot ThreatenedNative
Crepis capillaris
(hawksbeard)
Herbs - Dicotyledonous compositesExotic
Cynosurus cristatus
(crested dogstail)
GrassesExotic
Cyperus ustulatus
(coastal cutty grass, giant umbrella sedge, cyperus)
SedgesNot ThreatenedNative
Eleocharis acuta
(sharp spike sedge)
SedgesNot ThreatenedNative
Elodea canadensis
(Canadian pondweed)
Herbs - MonocotsExotic
Erigeron sumatrensis
(broad-leaved flea-bane)
Herbs - Dicotyledonous compositesExotic
Galium palustre subsp. palustre
(marsh bedstraw)
Herbs - Dicotyledons other than CompositesExotic
Holcus lanatus
(Yorkshire fog)
GrassesExotic
Isolepis proliferaSedgesNot ThreatenedNative
Juncus articulatus
(jointed rush)
Rushes & Allied PlantsExotic
Juncus bufonius var. bufonius
(toad rush)
Rushes & Allied PlantsExotic
Juncus edgariae
(wiwi, Edgar's rush)
Rushes & Allied PlantsNot ThreatenedNative
Juncus effusus var. effusus
(soft rush)
Rushes & Allied PlantsExotic
Juncus pallidus
(giant rush, leafless rush)
Rushes & Allied PlantsNot ThreatenedNative
Lemna disperma
(common duckweed)
Herbs - MonocotsNot ThreatenedNative
Lepidium bonariense
(Argentine cress)
Herbs - Dicotyledons other than CompositesExotic
Lolium arundinaceum subsp. arundinaceum
(tall fescue)
GrassesExotic
Lolium perenne
(perennial rye grass)
GrassesExotic
Lupinus arboreus
(tree lupin)
Trees & Shrubs - DicotyledonsExotic
Lycium ferocissimum
(boxthorn)
Trees & Shrubs - DicotyledonsExotic
Lysimachia arvensis subsp. arvensis var. arvensis
(pimpernel)
Herbs - Dicotyledons other than CompositesExotic
Lythrum hyssopifolia
(hyssop loosestrife)
Herbs - Dicotyledons other than CompositesExotic
Malva sylvestris
(large-flowered mallow)
Herbs - Dicotyledons other than CompositesExotic
Myosotis laxa subsp. caespitosa
(water forget-me-not)
Herbs - Dicotyledons other than CompositesExotic
Myriophyllum propinquum
(common water milfoil)
Herbs - Dicotyledons other than CompositesNot ThreatenedNative
Nasturtium officinale
(Watercress)
Herbs - Dicotyledons other than CompositesExotic
Persicaria decipiensHerbs - Dicotyledons other than CompositesNot ThreatenedNative
Plantago major
(broad-leaved plantain)
Herbs - Dicotyledons other than CompositesExotic
Potamogeton crispus
(curly pondweed)
Herbs - MonocotsExotic
Prunella vulgaris
(self-heal)
Trees & Shrubs - DicotyledonsExotic
Ranunculus repens
(buttercup)
Herbs - Dicotyledons other than CompositesExotic
Ranunculus sceleratus
(celery-leaved buttercup)
Herbs - Dicotyledons other than CompositesExotic
Rumex crispus
(curled dock)
Herbs - Dicotyledons other than CompositesExotic
Salix fragilis × S. euxina
(crack willow)
Trees & Shrubs - DicotyledonsExotic
Schoenoplectus pungens
(three-square)
SedgesNot ThreatenedNative
Schoenoplectus tabernaemontani
(kuawa)
SedgesNot ThreatenedNative
Schoenus maschalinus
(dwarf bog rush)
SedgesNot ThreatenedNative
Sonchus asper
(prickly sow thistle)
Herbs - Dicotyledonous compositesExotic
Sonchus oleraceus
(sow thistle, sowthistle)
Herbs - Dicotyledonous compositesExotic
Stuckenia pectinata
(fennel-leaved pondweed, sago pondweed)
Herbs - MonocotsAt Risk – Naturally UncommonNative
Trifolium arvense
(haresfoot trefoil)
Herbs - Dicotyledons other than CompositesExotic
Trifolium fragiferum
(strawberry clover)
Herbs - Dicotyledons other than CompositesExotic
Trifolium repens
(white clover)
Herbs - Dicotyledons other than CompositesExotic
Typha orientalis
(raupō, bullrush)
Herbs - MonocotsNot ThreatenedNative
Ulex europaeus
(gorse)
Trees & Shrubs - DicotyledonsExotic
Veronica anagallis-aquatica
(water speedwell)
Herbs - Dicotyledons other than CompositesExotic
Wolffia australiana
(water-meal)
Herbs - MonocotsNot ThreatenedNative
Zannichellia palustris
(Horned pondweed)
Herbs - MonocotsAt Risk – Naturally UncommonNative