Megaphrynium macrostachyum

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant is primarily distributed across the West Tropical Africa region. Specifically, it can be found growing within the borders of Ghana. Its presence is also documented throughout the nation of Guinea. Furthermore, the species inhabits parts of the Ivory Coast and Liberia. Finally, its geographical range extends into Nigeria.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Megaphrynium macrostachyum is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons. It functions as a geoophyte, maintaining its vital structures underground to survive unfavorable environmental conditions. Furthermore, its biological classification identifies it as a cryptophyte, a trait that dictates its survival strategy by protecting its perennating buds beneath the soil surface.

Life form :

geophyte

Life form :

cryptophyte

Lifecycle :

perennial

Morphology

The morphology of Megaphrynium macrostachyum is characterized by its growth form as a non-woody herb, reaching a maximum plant height of approximately 4 meters. This species functions as an independent organism rather than a parasite or an epiphyte, maintaining a terrestrial habit despite its capacity to occupy semiaquatic environments. It exhibits a self-supporting growth habit, lacking the specialized climbing mechanisms of obligate or facultative lianas and vines, instead maintaining its structure through its own herbaceous tissues.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

4 m

Woodiness :

non-woody

Physiology

The physiology of Megaphrynium macrostachyum is characterized by a metabolic framework centered around the C3 photosynthetic pathway. As a plant utilizing C3 photosynthesis, its carbon fixation process occurs primarily through the Calvin cycle, where atmospheric carbon dioxide is directly captured by the enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) to form a three-carbon compound. This physiological mechanism suggests that the plant is optimized for environments where moisture is relatively available and temperatures are not excessively high, as it lacks the specialized adaptations found in C4 or CAM species to minimize photorespiration. Consequently, its gas exchange and water-use efficiency are governed by the standard stomatal regulation inherent to C3 metabolism, balancing the intake of CO2 for biomass production against the transpirational loss of water.

Photosynthetic pathway :

C3

Reproduction

The reproductive cycle of Megaphrynium macrostachylum is characterized by distinct seasonal phases for flowering and fruiting, though the timing can remain variable throughout the year. The flowering period typically commences in April and reaches its conclusion in May, providing the necessary window for pollination. Following the floral stage, the plant enters its fruiting phase, which is notably concentrated in October; specifically, the fruiting period is observed to start and end within the month of October. While these specific months represent the primary reproductive windows, the overall phenology can fluctuate across the calendar months, including January, February, March, June, July, August, September, November, and December, depending on environmental conditions.

Flowering time :

Apr

Flowering time :

May

Fruiting time :

Oct

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Megaphrynium macrostachyum 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. Ecology of food and nutrition