Peraxilla tetrapetala | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Santalales |
Family: | Loranthaceae |
Genus: | Peraxilla |
Species: | P. tetrapetala
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Binomial name | |
Peraxilla tetrapetala |
Peraxilla tetrapetala, or red mistletoe, is a parasitic plant in the family Loranthaceae, endemic to New Zealand and found on both the North and South Islands.[3] The Māori names for the plant are pikirangi, pirirangi and roeroe.[2]
It is a shrub up to one metre tall with glabrous leaves. The flowers are 4–5 mm long, bright red to orange in colour which split open to the base. Red mistletoe mainly parasitises Quintinia and Nothofagus species.[4] Its principal host is the black/mountain beech (Nothofagus solandri complex). However, north of latitude 38°S this species utilises tawheowheo (Quintinia serrata), and in the far north has been found on pohutukawa (Metrosideros excelsa), puriri (Vitex lucens) and towai (Weinmannia sylvicola), and hence, is the most widely distributed beech mistletoe.[3]
P. tetrapetala is hermaphroditic, self-compatible, and is both bird-pollinated and bird-dispersed, yet has an explosive bud-opening mechanism.[5] It is thought that birds are more important for seed dispersal than for pollination.[5]
The caterpillar of the endemic moth Zelleria maculata feeds on the inside flower buds of P. tetrapetala and as a result can affect the production of seeds of this plant.[6][7][8]
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