Schisandra propinqua

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Sphaerostema propinquum
• Kadsura propinqua

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta. It is classified within the class Equisetopsida and the subclass Magnoliidae, falling under the order Austrobaileyales. Finally, it is a member of the family Schisandraceae within the genus Schisandra.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide geographical range across various regions of East and South Asia. Within China, its presence is documented throughout the South-Central, North-Central, and Southeast territories. Additionally, the species can be found growing in the high-altitude regions of Tibet. Beyond the borders of China, it extends into the Indian Subcontinent, specifically in the state of Assam. This broad distribution highlights the plant's ability to thrive in diverse ecological environments.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Schisandra propinqua is characterized by its specific niche within montane forest ecosystems, where it thrives across a significant vertical gradient. This species is strategically distributed across a wide altitudinal spectrum, occupying habitats ranging from a minimum elevation of 820 m AMSL to a maximum elevation of 2800 m AMSL. This broad elevational range suggests an adaptability to varying microclimates, temperature regimes, and moisture levels found within mountain slopes. Such a distribution indicates that the plant can inhabit both mid-elevation subtropical zones and higher, cooler montane environments, provided the necessary forest structure and soil conditions are met to support its growth throughout these diverse altitudinal belts.

Elevational range max:

2800 m AMSL

Elevational range min:

820 m AMSL

Morphology

The morphology of Schisandra propinqua is characterized by its growth habit as a woody liana, functioning as a climbing vine that requires external support to ascend. It is classified as an obligatory climber, meaning it relies on physical structures for vertical development rather than being self-supporting. The plant is strictly terrestrial in its ecological positioning, growing within the soil substrate rather than living as an epiphyte, and it remains an independent organism, lacking any parasitic relationship with its host plants.

Climber :

liana

Climber :

obligatory

Epiphyte :

terrestrial

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Schisandra propinqua is characterized by a metabolic framework consistent with temperate woody perennials, most notably through its utilization of the C3 photosynthetic pathway. As a C3 plant, its carbon fixation process relies on the enzyme RuBisCO to incorporate atmospheric carbon dioxide directly into a three-carbon molecule during the Calvin cycle, a mechanism that is highly efficient in the shaded, humid forest understories where the species typically thrives. This metabolic strategy necessitates a careful balance of gas exchange and transpiration to manage photorespiration rates, particularly when environmental temperatures fluctuate. The plant's physiological vigor is further supported by its complex secondary metabolism, which directs energy from carbohydrate synthesis toward the production of lignans and other bioactive compounds, integrating its carbon assimilation processes with specialized biosynthetic pathways for chemical defense and environmental adaptation.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Schisandra propinqua involves the production of seeds characterized by a highly consistent and uniform physical profile. Based on empirical data, the seed mass exhibits no variance across the sampled population, with a recorded mean, maximum, and minimum value all precisely measured at 0.004735 g. This extreme uniformity in seed mass suggests a highly regulated developmental process during the maturation of the fruit, ensuring that each individual seed possesses the exact same energetic investment and weight. Such precision in seed mass is a critical factor in the plant's reproductive strategy, potentially influencing dispersal mechanisms and the initial establishment success of the progeny in its natural habitat.

Seed mass mean:

0.004735 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Schisandra propinqua has 2 reported plant parts identified across 5 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include stem, leaf.

Stem

1. Planta medica
2. Fitoterapia
3. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
4. Phytochemistry

Leaf

1. Phytochemistry

Chemicals

Schisandra propinqua has 6 reported phytochemicals identified across 5 scientific publications and several other databases. The most consistently reported chemicals include BETA-SITOSTEROL, Galgravin, Isoschisandrolic acid, Schisandrolic acid, Veraguensin.

BETA-SITOSTEROL

1. Chemical & pharmaceutical bulletin

Galgravin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Isoschisandrolic acid

1. Chemotherapy

Schisandrolic acid

1. Chemotherapy

Veraguensin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

triterpene

1. Chemical & pharmaceutical bulletin

Activities

Schisandra propinqua has 1 reported activities identified across 5 scientific publications and several other databases. The most consistently reported activities include Anticancer.

Anticancer

1. Chinese medicine

Preparations

Schisandra propinqua has 1 reported preparations identified across 5 scientific publications and several other databases. The most consistently reported preparations include stems.

Stems

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica