Caryocar villosum

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant is widely distributed across several regions of the South American continent. In Northern South America, it can be found growing within French Guiana and Venezuela. Moving toward the western part of the continent, its range extends into Ecuador and Bolivia. Additionally, the species is present within the West-Central region of Brazil. Together, these locations define the diverse geographical footprint of Caryocar villosum.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Caryocar villosum is fundamentally defined by its presence in the Floresta de Terra Firme, where it thrives in stable, non-flooded tropical rainforest ecosystems characterized by nutrient-cycling processes and high biodiversity. Within these upland forest environments, the species occupies specific niches dictated by the structural complexity of the canopy and the availability of light and soil moisture. As a component of these undisturbed terrestrial habitats, its survival and reproductive success are deeply integrated into the complex biotic interactions of the forest, relying on the specific soil compositions and microclimatic conditions typical of permanent, well-drained forest floors.

Habitat :

Floresta de Terra Firme

Life history

The life history of Caryocar villosum is characterized by a perennial lifecycle, allowing the individual to persist in its ecosystem over many years. As a phanerophyte, it maintains its photosynthetic organs well above the ground, typically developing into a large, robust tree structure. This life form is further classified within the phanerophyte category, emphasizing its stature and structural complexity. Throughout its existence, the plant maintains an evergreen deciduousness, ensuring that it retains its foliage year-round rather than shedding it seasonally.

Deciduousness :

evergreen

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Caryocar villosum is characterized by its growth form as a large, woody tree that functions as a self-supporting organism. It is a terrestrial species that operates independently, exhibiting no parasitic behavior. Reaching significant proportions in the forest canopy, the plant typically attains a mean height of 30 m, though it can reach a maximum height of up to 40 m. As a non-climber and non-epiphyte, it maintains a robust, self-supporting structural integrity throughout its life cycle.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

40 m

Plant height mean:

30 m

Woodiness :

woody

Physiology

The physiology of Caryocar villosum is characterized by a standard C3 photosynthetic pathway, which involves the direct fixation of carbon dioxide through the Calvin cycle without the specialized carbon-concentrating mechanisms found in C4 or CAM plants. This metabolic strategy typically requires consistent access to moisture and moderate temperatures to maintain efficient gas exchange and stomatal conductance. Furthermore, the species is not a nitrogen fixer, meaning it lacks the symbiotic relationship with nitrogen-fixing bacteria (such as Rhizobium) required to convert atmospheric nitrogen into bioavailable forms; instead, it relies on the uptake of nitrates and ammonium from the soil through its root system to satisfy its nitrogen requirements for protein synthesis and enzymatic functions.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Caryocar villosum is characterized by a diverse range of dispersal mechanisms, primarily functioning through a zoochorous syndrome where animals play a critical role in the movement of its seeds. While the dispersal strategy is fundamentally zoochorous, the plant exhibits a complex reproductive ecology that encompasses several other modes, including anemochorous (wind dispersal), autochorous (self-dispersal), and hydrochorous (water dispersal) processes, as well as unspecialized dispersal patterns. This multifaceted approach ensures that seeds can navigate various environmental vectors to reach suitable germination sites within its habitat.

Dispersal syndrome :

zoochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Caryocar villosum has 2 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 fruit, stem.

Fruit

1. Journal of natural products

Stem

1. Journal of natural products

Preparations

Caryocar villosum has 3 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include methanol extract of the fruits, methanol extracts, polar fractions of the stem bark.

Methanol extract of the fruits

1. Journal of natural products

Methanol extracts

1. Journal of natural products

Polar fractions of the stem bark

1. Journal of natural products