roughbark lignum vitae

Names and Synonyms

Common Names

• Common Lignum Vitae
• Tree of Life
• Commoner Lignum Vitae
• Guaiac Tree
• guaiacum
• lignum-vitae
• guaiacwood
• roughbark lignum-vitae

Scientific Names

Accepted name

Synonyms

• Guaiacum bijugum
• Guaiacum breynii

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is further classified under the subclass Magnoliidae in the order Zygophyllales, falling within the family Zygophyllaceae. Ultimately, its taxonomic identity is defined by the genus Guaiacum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide and scattered geographical distribution across several oceanic and continental regions. Within the Middle Atlantic Ocean, its presence can be noted on the remote island of Ascension. Moving toward Asia, it is found within the Indo-China region, specifically in Vietnam. Its Pacific range extends from the Mariana Islands in the Northwestern Pacific to the islands of Hawaii in the North-Central Pacific. Finally, its reach includes the Southeastern United States, where it grows in Florida.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Guaiacum officinale is characterized by its adaptation to tropical environments, where it thrives across a specific vertical gradient within its habitat. This species typically inhabits lowland and coastal regions, occupying an elevational range that begins at a minimum of 30 m AMSL and extends up to a maximum of 1050 m AMSL. Within these altitudinal limits, the plant is integrated into ecosystems that provide the necessary thermal and moisture conditions required for its growth and medicinal potency.

Elevational range max:

1050 m AMSL

Elevational range min:

30 m AMSL

Life history

The life history of Guaiacum officinale is characterized by its status as a perennial species, allowing the plant to maintain its structural presence and physiological functions over many years. As a long-lived woody plant, it follows a developmental trajectory that moves from seed germination to a sustained vegetative growth phase, eventually reaching sexual maturity to produce its distinctive flowers and seeds. Because it is perennial, the plant does not undergo a complete lifecycle within a single growing season; instead, it invests significant energy into developing dense, durable wood and a robust root system that supports its long-term survival in tropical environments. This extended lifecycle enables the species to withstand seasonal fluctuations and contribute to the stability of its ecosystem through continuous biological activity over many successive years.

Lifecycle :

perennial

Morphology

The morphology of Guaiacum officinale is characterized by a robust, woody growth form, functioning as a self-supporting tree rather than a climber or liana. It is a terrestrial species that grows independently, lacking any parasitic or epiphytic tendencies. The plant reaches a significant stature, with a mean height of approximately 9.55 meters, and maintains a solid, woody structure throughout its development.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

9.55 m

Woodiness :

woody

Physiology

The physiology of Guaiacum officinale is characterized by specialized metabolic processes focused on the synthesis and accumulation of complex secondary metabolites, most notably lignans and resins, within its dense, durable woody tissues. As a slow-growing tropical hardwood, its physiological development prioritizes high carbon sequestration and the production of antioxidant compounds to defend against environmental stressors and pathogens. The plant exhibits a robust vascular system designed to support its heavy, resinous heartwood, which serves as a reservoir for bioactive phenolic compounds. Regarding its nutrient acquisition strategies, Guaiacum officinale is not a nitrogen fixer; it lacks the symbiotic relationship with nitrogen-fixing bacteria, such as Rhizobium, typically found in leguminous species, and therefore relies on the uptake of nitrates and ammonium directly from the soil through its root system. Its metabolic rate is closely tied to tropical climatic conditions, where temperature and moisture availability regulate transpiration rates and the enzymatic pathways responsible for resin secretion.

Nitrogen fixer :

no

Reproduction

The reproduction of Guaiacum officinale is characterized by the production of seeds that exhibit specific morphological variations in weight. Based on empirical data, the seed mass of this species fluctuates significantly, with a measured minimum value of 0.14034 g and a maximum value reaching 0.276 g. When considering the population as a whole, the seed mass follows a mean distribution of approximately 0.25939875 g. These variations in seed mass are critical factors in the plant's reproductive success and the subsequent establishment of new seedlings within its natural habitat.

Seed mass max:

0.276 g

Seed mass mean:

0.25939875 g

Seed mass min:

0.14034 g

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Guaiacum officinale has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Anticancer, Cytotoxic.

Anticancer

1. Puerto Rico health sciences journal

Cytotoxic

1. Puerto Rico health sciences journal

Conditions

Guaiacum officinale has 2 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include adjuvant arthritis, breast cancer.

Adjuvant arthritis

1. The Journal of pharmacy and pharmacology

Breast cancer

1. Puerto Rico health sciences journal

Preparations

Guaiacum officinale has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include dried plant material.

Dried plant material

1. Puerto Rico health sciences journal