Classification
 Nomenclature
Scientific Name:
Citrus L., Sp. Pl. 782-783 (1753)
 Description

Evergreen shrubs or trees, usually thorny, especially on vegetative shoots. Lvs alternate, apparently simple, really reduced to 1 leaflet, very aromatic; petiole often articulated at apex, often winged; lamina dotted with glands. Fls axillary, solitary or clustered in cymes or panicles, usually ☿, usually (4)–5-merous, occasionally with petals more numerous. Calyx cup-shaped; lobes minute to prominent. Petals white, sometimes flushed pink on reverse. Stamens 15-many (to 10× as many as petals), arranged in bundles. Ovary (8)–10–14–(15)-celled. Ovules in 2 rows each of 4–8 per cell. Styles deciduous. Fr. a fleshy berry (hesperidium), usually large, ± globose, green, yellow, or orange; cells with pulpy vesicles surrounding the large polyembryonic seeds. Embryo green or white.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Exotic
Number of species and named hybrids in New Zealand within Citrus L.
CategoryNumber
Exotic: Fully Naturalised1
Exotic: Casual2
Total3
 Bibliography
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.
Steele, R.; Lowe, M. 2002–2006: Index. Subtropicals Index: 1–12.