Water Elder

Names and Synonyms

Common Names

• River-Elder
• Water-Elder
• river nuxia

Scientific Names

Accepted name

Synonyms

• Nuxia schlechteri
• Nuxia dentata
• Nuxia autunesii
• Nuxia tomentella
• Nuxia dentata var. glutinosa
• Nuxia capitata var. tomentella
• Nuxia tomentella var. typica
• Nuxia tomentella var. meridionalis
• Nuxia tomentella f. microphylla
• Nuxia tomentella f. farinosa
• Nuxia tomentella f. subdentata
• Lachnopylis oppositifolia

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, placing it within the class Equisetopsida and subclass Magnoliidae. It is further classified under the order Lamiales and the family Stilbaceae. Finally, it is identified by the genus Nuxia (noting the corrected spelling of Nuxia oppositifolia).

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern across several regions of the African continent. In West-Central Tropical Africa, it can be found within the Democratic Republic of the Congo. Its presence extends significantly into Northeast Tropical Africa as well. Specifically, it is located in the nations of Djibouti, Eritrea, and Ethiopia. Furthermore, the species is also documented to grow in Somalia.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Nuxia oppositifolia is defined by its ability to thrive across a diverse vertical gradient within its habitat, exhibiting significant adaptability to varying altitudinal conditions. This species occupies a broad ecological niche, with its distribution spanning an elevational range that begins at a minimum of 50 m AMSL and extends to a maximum of 1325 m AMSL. This wide altitudinal breadth suggests that the plant is capable of tolerating a variety of microclimates, ranging from lower-altitude, potentially warmer environments to higher-altitude zones characterized by different temperature regimes and moisture availability. Such a range indicates a resilient ecological profile, allowing the species to inhabit diverse landscapes within its geographic domain.

Elevational range max:

1325 m AMSL

Elevational range min:

50 m AMSL

Life history

The life history of Nuxia oppositifolia is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. It exhibits a nanophanerophyte life form, meaning its woody stems remain very close to the ground or are only slightly elevated. Additionally, the species maintains an evergreen deciduousness, ensuring that its foliage remains functional and present throughout its life cycle rather than being shed seasonally.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Lifecycle :

perennial

Morphology

The morphology of Nuxia oppositifolia is characterized by a woody growth form that manifests as both a tree and a shrub. As a self-supporting plant, it does not function as a climber or an epiphyte, maintaining a terrestrial existence rather than an aquatic or semiaquatic one. The species is an independent organism, exhibiting no parasitic behavior. In terms of stature, the plant displays significant variability in height; while it can reach a minimum of 1 meter, it typically grows to a mean height of 12 meters, with maximum recorded heights reaching up to 7 meters in certain contexts.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height max:

7 m

Plant height mean:

12 m

Plant height min:

1 m

Woodiness :

woody

Physiology

The physiology of Nuxia oppositifolia is characterized by complex metabolic processes adapted to its native woodland and forest habitats. As a woody angiosperm, it relies on efficient photosynthetic pathways to support its structural growth and seasonal flowering cycles. Regarding its nutrient acquisition strategies, the plant does not engage in symbiotic relationships with diazotrophic bacteria to convert atmospheric gases into organic forms; specifically, it is not a nitrogen fixer, as indicated by its lack of specialized root nodules for this purpose. Instead, its nitrogen requirements are met through the uptake of nitrates and ammonium ions from the soil via its root system. This reliance on soil-available nitrogen dictates its distribution patterns, favoring environments with sufficient organic matter decomposition to sustain its physiological demands for protein synthesis and enzymatic function.

Nitrogen fixer :

no

Reproduction

The reproduction of Nuxia oppositifolia is centered around the production of seeds that exhibit a highly uniform and extremely lightweight physical profile. Based on botanical data, the seeds produced by this species are characterized by a consistent seed mass, with a mean weight of 1e-05 g. This measurement is exceptionally precise, as both the maximum and minimum observed seed masses are also recorded at 1e-05 g, indicating a lack of significant variance in the weight of the individual reproductive units. Such minute seed mass suggests a reproductive strategy that may favor dispersal via wind or specialized mechanisms suited for very small, lightweight particles.

Seed mass mean:

1e-05 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Nuxia oppositifolia has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 3-Oxolupenal, Katononic acid.

3-Oxolupenal

1. Biomolecules

Katononic acid

1. Biomolecules

Activities

Nuxia oppositifolia has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antidiabetic, Antioxidant.

Antidiabetic

1. Biomolecules

Antioxidant

1. Biomolecules

Conditions

Nuxia oppositifolia has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include type 2 diabetes mellitus.

Type 2 diabetes mellitus

1. Biomolecules

Preparations

Nuxia oppositifolia has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include methanolic crude extract.

Methanolic crude extract

1. Biomolecules