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Pittosporum kirkii, commonly known as Kirk's kōhūhū or the thick-leaved kohukohu, is an evergreen perennial shrub in the family Pittosporaceae. It is endemic to New Zealand with a known restricted geographical range in the North Island, extending from the Northland Region to the Whanganui River, in the Manawatū-Whanganui region. It is also found on some of the North Island's offshore islands (such as Great Barrier Island).
P. kirkii was first described in 1869 by Joseph Dalton Hooker from material collected by Thomas Kirk. Hooker named the species in honour of Kirk by applying the specific epithet "kirkii" to the species. P. kirkii is usually epiphytic and grows up to 5 metres (16 ft) in height and has thick and leathery leaves that are widest towards the tip and with yellowish-green coloured capsules. Its trunk can be up to 10 cm (3.9 in) in diameter.
Pittosporum kirkii is endemic to New Zealand and has a known restricted geographical range in the North Island, extending from Karikari Peninsula and Mangōnui in the Northland Region and south of the Whanganui River (in the Manawatū-Whanganui region) and west to Mount Taranaki. P. kirkii is also found on some of the North Island's offshore islands such as Great Barrier Island and Little Barrier Island. P. kirkii has an estimated mean altitude range of 50–1,116 m (164–3,661 ft) above sea level.
Pittosporum aliferum · Weeping Pittosporum · Pittosporum artense · Banyalla · Pittosporum brevispinum · Pittosporum ceylanicum · Pittosporum coccineum · Pittosporum collinum · Madeira Pittosporum · Perching Kohukohu · Stiffleaf cheesewood · Dalls Pittosporum
Text excerpted from the Wikipedia article Pittosporum kirkii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
