Chinese Nutmeg Tree

Names and Synonyms

Common Names

• Chinese Nutmeg Tree
• Chinese nutmeg-yew
• Chinese torreya
• grand torreya
• tall torreya
• Chinese Nutmeg Yew

Scientific Names

Accepted name

Synonyms

• Tumion grande
• Torreya nucifera var. grandis
• Caryotaxus grandis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta. It is further classified within the class Equisetopsida, subclass Pinidae, and order Pinales. Finally, it is a member of the Taxaceae family within the genus Torreya.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern across several key regions of China. It can be found growing within the landscapes of China South-Central. Additionally, the species is documented throughout the territory of China North-Central. Its presence also extends into the diverse environments of China Southeast. Together, these three regions define the primary geographical range of Torreya grandis.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Torreya grandis is characterized by its classification as a phanerophyte, specifically exhibiting traits of both phanerophyte and nanophanerophyte life forms. As a long-lived coniferous evergreen, its development begins with the germination of seeds produced in fleshy, berry-like cones, which are often dispersed by fauna. Throughout its ontogeny, the plant maintains its buds well above the ground level, a defining feature of the phanerophyte strategy that allows it to survive seasonal environmental stresses. The growth pattern involves a slow progression from a seedling stage to a robust, woody perennial structure, where it establishes a permanent presence in its ecological niche. This life strategy prioritizes long-term persistence and structural stability, utilizing its elevated reproductive and vegetative buds to navigate the climatic variations of its habitat.

Life form :

phanerophyte

Morphology

The morphology of Torreya grandis is characterized by a robust growth form, primarily manifesting as a large, woody tree. It is a self-supporting organism that does not exhibit climbing or vining behavior, standing independently within its habitat. As a terrestrial species, it is neither aquatic nor semiaquatic, nor does it function as an epiphyte; instead, it grows directly in the soil. Furthermore, the plant is biologically independent, lacking any parasitic tendencies, and maintains a solid, woody structure throughout its development.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Torreya grandis is characterized by a C3 photosynthetic pathway, which involves the direct fixation of carbon dioxide through the Calvin cycle without the specialized carbon-concentrating mechanisms found in C4 or CAM plants. This metabolic strategy is typical for many gymnosperms inhabiting temperate forest environments. Furthermore, the structural integrity of its woody tissues is reflected in its stem-specific density (SSD), which has a mean value of 499 mg/cm³. This density value indicates a specific level of lignification and cellular compaction within the xylem, contributing to the overall mechanical strength and hydraulic efficiency of the plant's vascular system.

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

499 mg/cm³

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Torreya grandis has 5 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Arabinan, ETHYLENE, Galangal acetate, miogadial, squalene.

Arabinan

1. Plant science : an international journal of experimental plant biology

ETHYLENE

1. Frontiers in plant science

Galangal acetate

1. Journal of ethnopharmacology

miogadial

1. Journal of ethnopharmacology

squalene

1. Food chemistry

Activities

Torreya grandis has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Anthelmintic.

Anthelmintic

1. Journal of ethnopharmacology

Conditions

Torreya grandis has 2 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include cardiovascular diseases, coronary heart diseases.

Cardiovascular diseases

1. Natural product communications

Coronary heart diseases

1. Natural product communications

Preparations

Torreya grandis has 2 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include inner barks, nuts.

Inner barks

1. FEMS immunology and medical microbiology

Nuts

1. Food chemistry