Rio Grande acacia

Names and Synonyms

Common Names

• Rio Grande acacia
• huisachillo
• twisted acacia
• wild poponax
• Poponax

Scientific Names

Accepted name

Synonyms

• Poponax tortuosa
• Poponax venosa
• Acacia leucacantha
• Prosopis microphylla
• Acacia seifriziana
• Acacia tortuosa
• Acacia virescens
• Acacia albescens
• Mimosa virescens
• Mimosa tortuosa

Regional and Traditional Names

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, it is organized under the order Fabales and the family Fabaceae. Finally, it is categorized under the genus Vachellia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical distribution across several tropical and subtropical regions. In the Southeastern United States, its presence is primarily noted in the state of Florida. Its range extends significantly into the Caribbean islands, where it can be found in the Bahamas and Cuba. Additionally, it is located within the Dominican Republic. Finally, the species is also documented on the island of Aruba.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Vachellia tortuosa is characterized by its broad adaptability to diverse topographic gradients, allowing it to colonize a vast vertical landscape. This species exhibits a significant elevational range, spanning from sea level at 0 m AMSL up to high-altitude environments reaching a maximum of 2144 m AMSL. This wide altitudinal distribution suggests that the plant is capable of thriving in various microclimates, ranging from lowland tropical or subtropical conditions to cooler, more temperate montane zones. Such ecological plasticity enables it to occupy a variety of niches within its native habitat, likely responding to fluctuating variables such as temperature, moisture availability, and atmospheric pressure across its extensive vertical gradient.

Elevational range max:

2144 m AMSL

Elevational range min:

0 m AMSL

Life history

The life history of Vachellia tortuosa is characterized by a perennial lifecycle, allowing the plant to persist in its environment over multiple growing seasons. As a perennial species, it avoids the complete mortality associated with annual or biennial cycles, instead establishing a long-term presence that enables it to withstand seasonal fluctuations. This extended lifespan supports a stable reproductive strategy, where the plant can invest energy into robust structural growth and repeated flowering periods across successive years.

Lifecycle :

perennial

Morphology

The morphology of Vachellia tortuosa is characterized by a woody growth habit that manifests in both tree and shrub forms. As a terrestrial species, it functions as an independent organism rather than a parasite or an epiphyte. The plant is self-supporting in its structure, lacking any climbing or vining tendencies. In terms of stature, it reaches a maximum height of approximately 6 meters, with an average plant height recorded at 6.1 meters.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height max:

6 m

Plant height mean:

6.1 m

Woodiness :

woody

Reproduction

The reproduction of Vachellia tortuosa is characterized by a specific seed morphology and a versatile dispersal strategy. The plant produces seeds with a highly consistent mass, showing no variance across recorded measurements, with a mean, maximum, and minimum seed mass all recorded at exactly 0.05952 g. Regarding its dispersal syndrome, the species exhibits a complex and multi-modal approach to spreading its offspring; while it is primarily categorized as zoochorous, its reproductive success is supported by a suite of dispersal mechanisms that include anemochorous, autochorous, hydrochorous, and unspecialized methods.

Dispersal syndrome :

zoochorous

Seed mass mean:

0.05952 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Vachellia tortuosa has 1 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Natural product research
2. Fitoterapia

Chemicals

Vachellia tortuosa has 4 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, Procyanidins, Tannin, polyphenols.

Flavonoids

1. Fitoterapia

Procyanidins

1. Fitoterapia

Tannin

1. The British journal of nutrition

polyphenols

1. Fitoterapia

Preparations