Gumira japonica

Names and Synonyms

Common Names

• Japanese premna
• japanese musk maple

Scientific Names

Accepted name

Synonyms

• Premna microphylla var. luxurians
• Gumira microphylla
• Premna microphylla var. glabra
• Premna formosana
• Gumira japonica
• Premna japonica
• Premna luxurians

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant, Premna microphylla, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Lamiales and the family Lamiaceae. It is further categorized under the genus Premna.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions of East Asia. Within China, it can be found throughout the South-Central and Southeast territories. Its range extends to Japan, specifically including the Nansei-shoto islands. Additionally, the species is documented as being present in Taiwan. Collectively, these locations highlight its presence across diverse subtropical environments in the region.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Premna microphylla is characterized by its specific growth forms, primarily manifesting as a phanerophyte, where its reproductive buds are borne on aerial shoots well above the ground. Depending on the specific environmental conditions and the developmental stage of the individual, it may also exhibit traits of a nanophanerophyte, maintaining a stature where the buds are situated just above the soil surface. This life strategy allows the plant to navigate its ecological niche by utilizing elevated structural support for its foliage and reproductive organs, ensuring survival through seasonal variations in its habitat.

Life form :

nanophanerophyte

Life form :

phanerophyte

Morphology

The morphology of Premna microphylla is characterized by a woody growth form, manifesting primarily as a tree. It functions as an independent organism, neither acting as a parasite nor as an epiphyte, as it maintains a terrestrial life habit. Although it possesses certain structural characteristics, it is classified as a self-supporting plant rather than a climber, meaning it does not rely on external structures for vertical support.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Premna microphylla is characterized by a metabolic framework governed by the C3 photosynthetic pathway, which dictates its carbon fixation processes and resource utilization strategies. As a C3 plant, it utilizes the enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) to directly fix atmospheric carbon dioxide into three-carbon organic compounds during the Calvin cycle. This physiological mechanism implies that the plant undergoes primary carbon assimilation during daylight hours through open stomata, a process that is highly efficient in temperate or sufficiently moist environments but makes the species susceptible to photorespiration under high-temperature or water-limited conditions. The energy acquisition and subsequent biomass production of Premna microphylla are intrinsically linked to this C3 pathway, influencing its water-use efficiency and its adaptive responses to varying light intensities and ambient moisture levels within its ecological niche.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Premna microphylla has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Bioactive materials

Chemicals

Premna microphylla has 1 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include pectin.

pectin

1. Bioactive materials

Conditions

Premna microphylla has 3 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include dysentery, rheumatism, wound healing.

Dysentery

1. Journal of AOAC International

Rheumatism

1. Journal of AOAC International

Wound healing

1. Bioactive materials

Preparations

Premna microphylla has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include sap extracted from the herbal leaves via traditional kneading method.

Sap extracted from the herbal leaves via traditional kneading method

1. Bioactive materials