Hernandia guianensis

Names and Synonyms

Scientific Names

Accepted name

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae, it is organized under the order Laurales and the family Hernandiaceae. Finally, it is identified by the genus Hernandia, specifically as the species Hernandia guianenis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is widely distributed across several key regions in the Caribbean and Northern South America. Within the Caribbean, its presence is specifically noted in the islands of Trinidad and Tobago. Moving into the mainland, it can be found throughout the coastal and interior territories of Guyana and Suriname. Its range also extends further west to include the nation of Venezuela. Finally, the species is documented within the lush landscapes of French Guiana.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Hernandia guianenensis is intrinsically linked to the complex architecture of the Ombrophilous Forest, also known as the Tropical Rainforest. This species thrives within these high-humidity environments, where it is adapted to the constant availability of moisture and the dense, multi-layered canopy structures characteristic of pluvial ecosystems. Its presence is defined by the specific microclimates found under the forest canopy, benefiting from the stabilized temperatures and high precipitation levels that characterize these moist forests. Within this habitat, the plant plays a role in the nutrient cycling and structural complexity of the forest floor and sub-canopy, relying on the heavy rainfall and shade-tolerant conditions to maintain its biological functions.

Habitat :

Floresta Ombrófila (= Floresta Pluvial)

Life history

The life history of Hernandia guianenis is characterized by its status as a perennial organism, allowing it to persist in its environment through multiple growing seasons. Throughout its developmental stages, the plant maintains an evergreen habit, ensuring that its foliage remains functional and present year-round rather than undergoing seasonal shedding.

Deciduousness :

evergreen

Lifecycle :

perennial

Morphology

The morphology of Hernandia guianenis is characterized by its substantial stature and robust structural composition. It is a woody tree that exhibits a self-supporting growth habit, rather than acting as a climber or a liana. As a terrestrial species, it functions as an independent organism, lacking any parasitic tendencies. The plant reaches significant dimensions in the forest canopy, with an average height of approximately 15 meters and the potential to reach a maximum height of up to 18 meters.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

18 m

Plant height mean:

15 m

Woodiness :

woody

Physiology

The physiology of Hernandia guianenesis is characterized by complex metabolic processes adapted to its tropical forest environment, primarily focusing on efficient nutrient uptake and photosynthetic optimization. As a woody species, its physiological framework supports significant biomass production through robust carbon fixation pathways. Regarding its nutrient cycling capabilities, the plant does not function as a nitrogen fixer; it lacks the symbiotic relationship with diazotrophic bacteria, such as Rhizobium or Frankia, required to convert atmospheric nitrogen into bioavailable forms. Consequently, its nitrogen assimilation is entirely dependent on the uptake of nitrates and ammonium from the soil substrate. This reliance necessitates a sophisticated root system designed to maximize the absorption of mineral nutrients to sustain its vegetative growth and reproductive cycles.

Nitrogen fixer :

no

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Hernandia guianensis 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 seed.

Seed

1. Planta medica

Chemicals

Hernandia guianensis has 13 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include (-)-yatein, (+)-epimagnolin A, (+)-syringaresinol dimethyl ether, (-)-pinoresinol, (-)-syringaresinol.

(-)-yatein

1. Planta medica
2. Journal of natural products

(+)-epimagnolin A

1. Journal of natural products

(+)-syringaresinol dimethyl ether

1. Journal of natural products

(-)-pinoresinol

1. Planta medica

(-)-syringaresinol

1. Planta medica

(7R,8S,7'R,8'R)-(+)-7'-acetyl-5'-methoxypicropodophyllin

1. Journal of natural products

(S)-Coriolic acid

1. Planta medica

Dehydropodophyllotoxin

1. Planta medica

Epiyangambin

1. Journal of natural products

Lignans

1. Planta medica

Preparations

Hernandia guianensis has 2 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include EtOAc-soluble extract, ethyl acetate extract of the twigs of Hernandia ovigera.

Etoac-soluble extract

1. Planta medica

Ethyl acetate extract of the twigs of hernandia ovigera

1. Journal of natural products