Coffin Tree

Names and Synonyms

Common Names

• Coffin Tree
• Taiwan Cedar
• Taiwania
• Chinese coffintree

Scientific Names

Accepted name

Synonyms

• Eotaiwania fushunensis
• Taiwania cryptomerioides var. flousiana
• Taiwania flousiana
• Taiwania fushunensis
• Taiwania yunnanensis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta within the class Equisetopsida. It is further classified under the subclass Pinidae and the order Pinales, falling into the family Cupressaceae. Ultimately, it is identified by the genus Taiwania.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution spanning several distinct regions across Asia. In China, its presence is noted in both the South-Central regions and the high altitudes of Tibet. The species is also native to the island of Taiwan within Eastern Asia. Furthermore, its range extends into the Indo-China peninsula, specifically inhabiting parts of Myanmar. Finally, it can be found growing within the tropical landscapes of Vietnam.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Taiwania cryptomerioides is characterized by its specific niche within high-altitude montane environments, where it thrives under specialized climatic conditions. This species is primarily restricted to a distinct altitudinal belt, occupying an elevational range that begins at 1540 m AMSL and extends up to a maximum of 2500 m AMSL. Within this vertical distribution, the plant typically inhabits cool, moist, and shaded forest ecosystems, often found in areas with high humidity and consistent precipitation. Its presence is closely linked to the structural complexity of cloud forests or temperate coniferous forests, where it relies on stable soil moisture levels and specific temperature regimes found in these mid-to-high elevation zones to support its growth and reproductive cycles.

Elevational range max:

2500 m AMSL

Elevational range min:

1540 m AMSL

Life history

The life history of Taiwania cryptomerioides is characterized by its classification as a phanerophyte, specifically exhibiting growth patterns consistent with both phanerophyte and nanophanerophyte life forms. As a long-lived woody species, it maintains its reproductive buds high above the ground on perennial stems, ensuring survival through various environmental shifts. Its developmental trajectory begins with seed germination in moist, shaded forest environments, leading to a slow-growing perennial habit where it establishes a significant vertical structure. Throughout its life cycle, the plant relies on its robust, elevated stem system to protect its meristems, a hallmark of the phanerophyte strategy, allowing it to persist in stable, high-canopy forest ecosystems.

Life form :

phanerophyte

Morphology

The morphology of Taiwania cryptomerioides is characterized by its growth form as a large, woody tree. As a terrestrial species, it does not exhibit aquatic or semiaquatic tendencies, nor does it function as an epiphyte, maintaining a strictly terrestrial existence. The plant is entirely independent, lacking any parasitic lifestyle, and it is characterized by a self-supporting structure rather than a climbing or liana-like habit. Its physical composition is fundamentally woody, providing the structural integrity necessary for its stature as a permanent arboreal organism.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Taiwania cryptomerioides is characterized by a C3 photosynthetic pathway, a metabolic strategy common among many temperate and subtropical coniferous species that facilitates carbon fixation through the direct carboxylation of ribulose-1,5-bisphosphate by the enzyme RuBisCO. This pathway dictates its gas exchange dynamics and water-use efficiency within its specific ecological niche. In addition to its carbon assimilation processes, the plant exhibits distinct structural characteristics reflected in its wood anatomy, specifically possessing a mean stem specific density (SSD) of 358 mg/cm³. This density value indicates the degree of lignification and cellular compaction within the xylem, which plays a critical role in the plant's mechanical stability, hydraulic conductivity, and overall structural integrity.

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

358 mg/cm³

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Taiwania cryptomerioides has 8 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Ferruginol, Flavonoids, Helioxanthin, Lignans, Sterols.

Ferruginol

1. Journal of natural products

Flavonoids

1. Chemistry & biodiversity

Helioxanthin

1. Journal of natural products

Lignans

1. Chemistry & biodiversity

Sterols

1. Chemistry & biodiversity

Taiwanin E

1. Journal of agricultural and food chemistry

Terpenoids

1. Chemistry & biodiversity

alpha-Cadinol

1. Journal of natural products

Activities

Taiwania cryptomerioides has 3 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antimicrobial, Antioxidant, Antitumor.

Antimicrobial

1. Chemistry & biodiversity

Antioxidant

1. Chemistry & biodiversity

Antitumor

1. Chemistry & biodiversity

Conditions

Taiwania cryptomerioides has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include antioxidant.

Antioxidant

1. Chemistry & biodiversity

Preparations

Taiwania cryptomerioides has 2 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include bark, whole plant.

Bark

1. Chemical & pharmaceutical bulletin
2. Journal of natural products

Whole plant

1. Journal of natural products