Merremia martini

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant, known scientifically as Merremia martini, exhibits a specific and localized geographical distribution. It is primarily documented within the regional landscapes of China. More specifically, its presence is concentrated in the South-Central part of the country. This limited range suggests that the species thrives under the particular climatic conditions found in those provinces. Consequently, researchers focusing on this medicinal plant direct much of their field study toward this specific Chinese territory.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Merremia martini is characterized by its specific distribution within montane environments, where it occupies a distinct altitudinal niche. This species is primarily found across a broad vertical gradient, ranging from a minimum elevation of 1200 m AMSL to a maximum peak of 2525 m AMSL. The distribution patterns suggest that the plant thrives most effectively within mid-to-high altitude zones, as evidenced by a mean elevational range of 1862 m AMSL. This specific elevational positioning indicates an adaptation to the particular climatic conditions, such as temperature fluctuations and moisture levels, typically found in these highland ecosystems.

Elevational range max:

2525 m AMSL

Elevational range mean:

1862 m AMSL

Elevational range min:

1200 m AMSL

Life history

The life history of Merremia martini is characterized by its status as a perennial organism, allowing it to persist through multiple growing seasons. In terms of its structural growth strategy, the species is classified as a phanerophyte, specifically exhibiting characteristics of a phanerophyte (and more specifically, a nanophanerophyte), which indicates that its perennating buds are located high above the ground on aerial shoots. This life form enables the plant to survive unfavorable environmental conditions by maintaining its regenerative structures in elevated positions, ensuring its long-term survival and ability to re-emerge seasonally.

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Merremia martinii is characterized by its growth form as a non-woody herb, which functions as a self-supporting climber. It exhibits an independent lifestyle, meaning it does not act as a parasite on other plants, and it maintains a terrestrial existence rather than growing as an epiphyte.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiological architecture of Merremia martini is characterized by significant morphological variability in its foliar development, which plays a crucial role in its photosynthetic capacity and surface area regulation. The leaf dimensions exhibit a broad spectrum of growth, with leaf lengths ranging from a minimum of 2.5 cm to a maximum of 11.5 cm, resulting in a calculated mean leaf length of 7.25 cm. Complementing this longitudinal variation is the lateral expansion of the blades, where leaf widths fluctuate between a minimum of 0.7 cm and a maximum of 5 cm. This range in leaf size and shape suggests a highly adaptive physiological mechanism that allows the plant to optimize light interception and gas exchange across varying environmental conditions.

Leaf length max:

11.5 cm

Leaf length mean:

7.25 cm

Leaf length min:

2.5 cm

Leaf width max:

5 cm

Leaf width min:

0.7 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Merremia martini 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 root.

Root

1. Chemical & pharmaceutical bulletin