Oxalis megalorrhiza Jacq.

NZOR Identifier: 4f5e26aa-638e-4fa0-afe6-2a611e4afb1e

Status

Preferred Name (NZOR Concept Id 7d2ef0b4-6aef-4db0-9b14-93ad7a8eb1bf)

Classification

superkingdom
Eukaryota
kingdom
Plantae
phylum
Tracheophyta
subphylum
Spermatophytina
class
Magnoliopsida
order
Oxalidales
family
Oxalidaceae
genus
Oxalis
species
Oxalis megalorrhiza Jacq.

Providers

Biostatus

Geo Schema
ISO Country
Geo Region
New Zealand
Biome
Terrestrial
Environmental Context
Wild
Occurrence
Sometimes Present
Origin
Exotic
In Use
True

Scientific Name

Authority
Jacq.
Rank
species
Published in
Jacquin, N.J. 1794: Oxalis. Mongraphia, iconibus illustrata. Wappler, Vienna.
Micro-reference (page)
33
Year
1794
Nomenclatural Comment
The application of the name Oxalis megalorrhiza Jacq. to New Zealand plants requires reassessment. Oxalis mirbelii Dehnh. has historically been confused with O. megalorrhiza. Shaw (2022) distinguishes O. mirbelii by its bright green rather than glaucous-green leaflets, fewer-flowered inflorescences, and abundant seed production. Oxalis mirbelii is self-compatible and readily produces fertile seed, whereas O. megalorrhiza is not known to be self-fertile. Fresh and pressed material from Whanganui previously referred to O. megalorrhiza appears to agree better with O. mirbelii, including the production of fertile seed. This raises the possibility that some, or potentially all, New Zealand records currently identified as O. megalorrhiza may represent O. mirbelii. Existing CHR specimens require critical re-examination before the status of O. megalorrhiza in New Zealand can be resolved. Some diagnostic characters, particularly leaflet colour, glossiness and glaucousness, are difficult to assess in dried specimens. Fresh material from established New Zealand populations would therefore be particularly valuable for confirming identifications. Reference: Shaw, J.M.H. (2022). Oxalis (Oxalidaceae). In: Eggli, U. & Nyffeler, R. (eds), Dicotyledons: Rosids. Illustrated Handbook of Succulent Plants. Springer, Cham.
Governing Code
ICBN
Is Recombination
No

Taxon Concept

NZOR Concept Id
5bdcc3f5-ff0e-4314-8f23-8338a2c02611
According to
NZFLORA (2012-) New Zealand Plant Names - Name based concepts
Has Parent
Oxalis (In use by NZOR)

Taxon Concept

NZOR Concept Id
7d2ef0b4-6aef-4db0-9b14-93ad7a8eb1bf
According to
Heenan, P.B.; de Lange, P.J.; Cameron, E.K.; Parris, B.S. 2008: Checklist of dicotyledons, gymnosperms, and pteridophytes naturalised or casual in New Zealand: additional records 2004-06. New Zealand Journal of Botany 46: 257-283.
Preferred Name
Oxalis megalorrhiza Jacq. (In use by NZOR) }

Taxon Concept

NZOR Concept Id
cc5b3805-9e1c-47c2-91cb-b387594d5c34
According to
Sykes, W.R. 2009: The Oxalis corniculata group. New Zealand Journal of Botany 47: 107-113.

No subordinate taxa

No vernacular applications

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