| Coriaria pottsiana | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Cucurbitales |
| Family: | Coriariaceae |
| Genus: | Coriaria |
| Species: | C. pottsiana |
| Binomial name | |
| Coriaria pottsiana W.R.B.Oliv. | |
Coriaria pottsiana, commonly called the Hikurangi tutu or Pott's tutu, is a rare low-growing sub-alpine perennial summer-green shrub, only known to exist on a small grassy scree slope behind the tramping hut on Mount Hikurangi in the Gisborne Region of New Zealand's North Island. The Mt Hikurangi tramping hut is found at 37°54′22″S 178°3′31″E / 37.90611°S 178.05861°E / -37.90611; 178.05861.
Description
The delicate shrub grows to a height of 50 cm (20 in), with a 1 m (3.3 ft) spread. It is rhizomatous, with slender four-sided 40 cm (16 in) stems growing from its slender rhizomes. Branches and branchlets are very slender, with small crinkled oblong to broad oval-shaped dark red opposite leaves with wavy margins that sometimes end in a distinct rounded point, are 5–9×4–9 mm (0.20–0.35×0.16–0.35 in) in size, are truncate at their base, are distant, have purplish undersides, and have slender petioles hardly 0.5 mm (1⁄50 in) in length. Its racemes are 4–14 cm (1.6–5.5 in) long, and are found at the tip of stems, or elsewhere on main branches. Its white flowers, found on slender pedicels up to 7 mm (0.28 in) in length, are distant, with broadly oval sepals about 1.5 mm (0.059 in) in size (sometimes toothed), similar petals, and 5 ribbed carpels.
Like all Coriaria species, the plant is poisonous, especially the seed inside the small black berries. However, the juice of some Coriaria berries is not poisonous, and was used by Māori, who called members of the genus "tutu".
References
- "Mount Hikurangi – Te Ara ki Hikurangi". Places to visit. Wellington, New Zealand: Department of Conservation. Retrieved 11 May 2012.
- ^ "Coriaria pottsiana". Oratia, New Zealand: Oratia Native Plant Nursery. 2007. Retrieved 11 May 2012.
- ^ Allan, H.H. (June 2004) . "8. C. pottsiana W. R. B. Oliver in Rec. Dom. Mus. Wellington 1, 1942, 24". Flora of New Zealand. Volume I. Indigenous Tracheophyta – Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons. First electronic edition. Transcribed by Wilton, A.D.; Andres, I.M.L. Lincoln, New Zealand: Landcare Research. Retrieved 11 May 2012.
- "Mt Hikurangi > Points". New Zealand Tramper. Retrieved 11 May 2012.
- ^ "Coriaria pottsiana". Wellington, New Zealand: New Zealand Plant Conservation Network. 5 May 2011. Retrieved 11 May 2012.
- Moorfield, John C. "Search results: "tutu"". Te Aka Māori-English, English-Māori Dictionary and Index (Online version). New Zealand: Pearson Education; Auckland University of Technology. tutu. Archived from the original on 23 February 2013. Retrieved 11 May 2012.
External links
- Coriaria pottsiana on the website of the NZ Plant Conservation Network (with photos)
- Coriaria pottsiana on Oratia Native Plant Nursery's website (with photo)
- Coriaria pottsiana W.R.B.Oliv. (1942) in the Ngā Tipu o Aotearoa – Plants of New Zealand database
- Specimen (holotype) at Te Papa
- Taxonomical description in the Flora of New Zealand series
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