Iron Berry

Names and Synonyms

Common Names

• Iron Berry
• Iron Wood
• Black Ironwood

Scientific Names

Accepted name

Synonyms

• Crossopetalum integrifolium
• Rhamnus brandegeeana
• Krugiodendron ferreum f. continentale
• Krugiodendron acuminatum
• Rhamnus ferrea
• Myginda integrifolia
• Ceanothus ferreus
• Scutia laevigata
• Scutia ferrea
• Reynosia laevigata
• Condalia ferrea
• Rhamnidium ferreum
• Ziziphus emarginata

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Rosales, it is classified under the family Rhamnaceae. Its specific taxonomic placement is defined by the genus Krugiodendron, which includes the species Krugiodendron ferrum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a widespread presence across several key regions in North America. In the Southeastern United States, its habitat is specifically noted within the state of Florida. Its distribution extends significantly into Mexico, where it can be found throughout the Central region. Furthermore, the species populates the Northeastern and Gulf areas of Mexico. Finally, the plant is also documented across the Southwestern territories of Mexico.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Krugiodendron ferrueum is defined by its preference for low-lying coastal or riparian environments, where it occupies a specific niche within the landscape. This species is primarily distributed across a narrow altitudinal gradient, thriving in habitats situated at low elevations. Its ecological range is strictly bounded between a minimum elevation of 10 m AMSL and a maximum elevation of 120 m AMSL. This restricted vertical distribution suggests that the plant is highly adapted to the specific humidity, soil composition, and temperature profiles characteristic of these low-altitude zones, likely favoring areas where moisture is readily available or where the influence of maritime or alluvial processes is most pronounced.

Elevational range max:

120 m AMSL

Elevational range min:

10 m AMSL

Life history

The life history of Krugiodendron ferreum is characterized by its status as a perennial species, allowing it to establish a long-term presence within its natural habitat. Throughout its developmental stages, the plant maintains a consistent foliage profile as an evergreen, ensuring that its leaves persist across multiple growing seasons rather than shedding annually. This combination of a long-lived lifecycle and continuous leaf retention enables the plant to sustain physiological processes and energy storage over many years.

Deciduousness :

evergreen

Lifecycle :

perennial

Morphology

The morphology of Krugiodendron ferrum is characterized by a woody growth form that can manifest as either a tree or a shrub. This plant is primarily terrestrial in its habitat and does not exhibit epiphytic or parasitic tendencies, functioning as an independent organism. In terms of stature, it is a self-supporting species rather than a climber, liana, or vine. It reaches a notable height in its environment, with a maximum recorded height of 9 m and a mean plant height of approximately 7.07 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height max:

9 m

Plant height mean:

7.07 m

Woodiness :

woody

Physiology

The physiology of Krugiodendron ferrueum is characterized by a C3 photosynthetic pathway, indicating a carbon fixation process that occurs directly within the mesophyll cells without the specialized anatomical adaptations found in C4 or CAM species. Its leaf morphology and resource investment strategies are defined by a highly consistent Leaf Dry Matter Content (LDMC) of 400 mg/g, showing no variance across minimum, mean, or maximum recorded values. Similarly, the Specific Leaf Area (SLA) remains constant at 134.7 cm²/g, suggesting a stable leaf thickness and density profile across its growing tissues. Furthermore, this species does not function as a nitrogen fixer, meaning it relies on soil-available nitrogen rather than symbiotic nitrogen-fixing bacteria to meet its nutritional requirements.

Leaf dry matter content (LDMC) mean:

400 mg/g

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) min:

134.7 cm²/g

Reproduction

Reproduction in Krugiodendron ferrum is characterized by a diverse array of dispersal mechanisms that facilitate its spread across various environments. The plant exhibits a complex dispersal syndrome, primarily functioning through zoochory, where seeds are transported by animals. However, its reproductive strategy is notably versatile, incorporating anemochory for wind-based dispersal and hydrochory for movement via water currents. Additionally, the species utilizes autochory, involving the self-propulsion of seeds, and may also rely on unspecialized dispersal methods to ensure colonization in unpredictable habitats.

Dispersal syndrome :

zoochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Krugiodendron ferreum 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. Journal of ethnopharmacology

Chemicals

Krugiodendron ferreum has 5 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Fatty acids, Phytosterols, STIGMASTEROL, Stigmast-7-en-3-ol, Tocopherols.

Fatty acids

1. Journal of ethnopharmacology

Phytosterols

1. Journal of ethnopharmacology

STIGMASTEROL

1. Journal of ethnopharmacology

Stigmast-7-en-3-ol

1. Journal of ethnopharmacology

Tocopherols

1. Journal of ethnopharmacology

Preparations