Torreya nucifera, commonly known as Japanese Nutmeg Tree, is a slow-growing conifer native to southern Japan and Jeju Island in South Korea. It belongs to the Taxaceae family and was first described in 1846. This tree is distinguished by its parasitic shrub-like growth habit, typically associated with other seed plants. Its flowers are generally bisexual, with four to six petals that may be separate or fused. The ovary is inferior, composed of one to four carpels, and lacks a nucellus, with the ovule developing at the base of the ovary. The fruit is a fleshy drupe enclosed in a sticky, mucilaginous substance, containing a single seed with a large embryo. It is a species of the Loranthaceae family, specifically associated with the genera Loranthus and Taxillus, depending on morphological characteristics such as corolla structure and leaf texture.
Description
Torreya nucifera is a parasitic shrub that grows on other seed plants. It produces small or medium-sized flowers, typically bisexual, with four to six petals that may be free or fused. The ovary is inferior and composed of one to four carpels, lacking a nucellus. The fruit is a drupe covered in a sticky, mucilaginous layer, containing a single seed with a large embryo. It is classified within the Loranthaceae family and is found in both northern, central, and southern regions of the Korean Peninsula, as well as on Jeju Island. Morphological features such as corolla lobes, leaf texture, and geographic distribution help distinguish it between the genera Loranthus and Taxillus.
Other common names
Japanese Nutmeg TreeJapanese torreyaJapanese-nutmegJapanese Nutmeg-yew
Distribution
Global · Japan · Korea
Synonyms
Torreya nucifera var. sphaericaTorreya nucifera f. sphaericaTumion nuciferumTaxus nuciferaTorreya macrospermaTorreya igaensisTorreya ascendensTorreya fruticosaTaxodium nuciferumPodocarpus nuciferusCaryotaxus nuciferaFoetataxus nuciferaTorreya undaTorreya nucifera var. articulataTorreya nucifera var. radicansTorreya nucifera var. macrospermaTorreya nucifera var. igaensis
