northern dwababerry

Names and Synonyms

Common Names

• northern dwababerry
• river dwababerry

Scientific Names

Accepted name

Synonyms

• Popowia obovata
• Popowia stormsii
• Unona obovata
• Friesodielsia obovata

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae and the order Magnoliales, it is further categorized into the family Annonaceae. Finally, its specific taxonomic placement is defined by the genus Monanthotaxis, to which the species obovata belongs.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across several key regions of the African continent. In West-Central Tropical Africa, its presence is noted within the Democratic Republic of the Congo. Moving toward East Tropical Africa, the species can be found in Tanzania. Its range also extends into South Tropical Africa, specifically covering the territories of Angola and Malawi. Finally, the distribution concludes in the southern reaches of the continent within Mozambique.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Monanthotaaxis obovata is characterized by its specific vertical distribution within its native habitat, where it thrives across a defined altitudinal gradient. This species is typically found inhabiting environments ranging from a minimum elevation of 100 m AMSL to a maximum elevation of 600 m AMSL. This relatively low to mid-elevation range suggests that the plant is adapted to specific climatic conditions and soil profiles found within these subtropical or tropical lowland zones, likely favoring stable moisture levels and temperature regimes consistent with these altitudes.

Elevational range max:

600 m AMSL

Elevational range min:

100 m AMSL

Life history

The life history of Monanthotaxis obovata is characterized by its status as a perennial species, allowing the plant to persist in its environment over multiple growing seasons. As a long-lived woody plant, it follows a life cycle that avoids the rapid turnover of annuals or the two-year cycle of biennials, instead investing energy into sustained structural growth and long-term survival. This perennial nature enables the plant to establish a robust root system and canopy, facilitating its ability to endure seasonal fluctuations and reproduce through successive years.

Lifecycle :

perennial

Morphology

The morphology of Monanthotaxis obovata is characterized by its woody growth form, primarily manifesting as a tree or a liana. As an obligatory climber, it functions as a liana that relies on external support to ascend, rather than being self-supporting. The plant exhibits a terrestrial habit, functioning as an independent organism without parasitic or epiphytic dependencies. In terms of stature, it reaches a minimum height of 1.5 m, with a mean height of approximately 5 m, and can reach a maximum height of up to 7 m.

Aquatic :

terrestrial

Climber :

liana

Climber :

obligatory

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

7 m

Plant height mean:

5 m

Plant height min:

1.5 m

Woodiness :

woody

Physiology

The physiology of Monanthotaxis obovata is characterized by specialized metabolic pathways and nutrient acquisition strategies typical of woody angiosperms within the Annonaceae family. Its physiological processes are centered on efficient photosynthetic carbon assimilation and robust secondary metabolite production, which serves both as a defense mechanism and a metabolic byproduct. In terms of its nitrogen economy, the plant does not exhibit the capacity for symbiotic nitrogen fixation; it is not a nitrogen fixer, meaning it lacks the specialized root nodules containing diazotrophic bacteria required to convert atmospheric nitrogen into bioavailable forms. Consequently, its nitrogen physiology relies entirely on the active uptake of nitrates and ammonium from the soil through its root system. This dependency necessitates a well-developed rhizosphere to facilitate the absorption of mineral nutrients necessary for the synthesis of proteins and nucleic acids, supporting its overall growth, structural integrity, and reproductive development.

Nitrogen fixer :

no

Reproduction

The reproduction of Monanthotaxis obovata is characterized by the production of seeds that exhibit a highly consistent physical profile. Based on quantitative data, the seed mass of this species is remarkably uniform, with a measured mean, maximum, and minimum value all reaching 0.28705 g. This lack of variance in seed mass suggests a standardized reproductive strategy where individual seeds are produced with a highly predictable weight of approximately 0.28705 g, ensuring consistent nutrient provisioning for each potential offspring during the germination process.

Seed mass mean:

0.28705 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Monanthotaxis obovata has 3 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include fruit, root, stem.

Fruit

1. Journal of ethnobiology and ethnomedicine

Root

1. Natural product research

Stem

1. Natural product research

Chemicals

Monanthotaxis obovata has 5 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include 3',5'-diformyl-2',4',6'-trihydroxychalcone, 3',5'-dimethyl-2',4',6'-trihydroxychalcone, BENZYL BENZOATE, Demethoxymatteucinol, Lawinal.

3',5'-diformyl-2',4',6'-trihydroxychalcone

1. Natural product research

3',5'-dimethyl-2',4',6'-trihydroxychalcone

1. Natural product research

BENZYL BENZOATE

1. Natural product research

Demethoxymatteucinol

1. Natural product research

Lawinal

1. Natural product research