Cnidoscolus quercifolius

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Jatropha phyllacantha
• Janipha phyllacantha
• Jatropha phyllacantha var. lobata
• Jatropha phyllacantha var. quercifolia
• Jatropha phyllacantha var. repanda
• Cnidoscolus phyllacanthus
• Cnidoscolus lobatus
• Cnidoscolus repandus

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. As a member of the subclass Magnoliidae and the order Malpighiales, it is classified under the family Euphorbiaceae. Finally, its specific taxonomic placement is within the genus Cnidoscolus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is characterized by a specific and localized geographical presence. Within the vast landscape of South America, its occurrence is primarily documented in Brazil. More specifically, it is found inhabiting the distinct environmental zones of the Brazilian Northeast. This region provides the particular climatic conditions necessary for the species to thrive. Consequently, its distribution remains concentrated within this specific corner of the country.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Cnidoscolus quercifolius is characterized by its ability to thrive in diverse and often challenging environments, showing significant adaptability across various landscapes. It is commonly found within anthropogenic areas, where it integrates into human-disturbed habitats, as well as in the semi-arid Caatinga (strictu sensu), where it must withstand seasonal water scarcity. Furthermore, the species inhabits Seasonal Deciduous Forests, adapting to the rhythmic fluctuations of leaf shedding and moisture availability typical of these ecosystems. Its ecological niche also extends to specialized vegetation found over rocky outcrops, where it colonizes thin soils and rugged terrains, demonstrating a robust capacity to survive in microhabitats with high solar exposure and limited substrate availability.

Habitat :

Área Antrópica, Caatinga (stricto sensu), Floresta Estacional Decidual, Vegetação Sobre Afloramentos Rochosos

Life history

The life history of Cnidoscolus quercifolius is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons. As a phanerophyte, its perennially existing buds are elevated above the ground on woody stems, a trait that can be further categorized by its structural growth as a phanerophyte. The plant exhibits a deciduous nature, shedding its foliage seasonally in response to environmental cues or moisture availability.

Deciduousness :

deciduous

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Cnidoscolus quercifolius is characterized by its growth form as a woody tree, which typically reaches a mean height of 6 m, although it can attain a maximum height of up to 12 m. As a terrestrial plant, it does not exhibit aquatic or semiaquatic tendencies, nor does it function as an epiphyte, remaining firmly grounded in its environment. The species is a self-supporting structure rather than a climber, vine, or liana, and it operates as an independent organism without parasitic behavior. Its structural integrity is defined by its woody nature, supporting its development into a substantial tree-like form.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

12 m

Plant height mean:

6 m

Woodiness :

woody

Physiology

The physiology of Cnidoscolus quercifolius is characterized by a C3 photosynthetic pathway, which involves the direct fixation of carbon dioxide through the Calvin cycle within the mesophyll cells. Unlike plants utilizing C4 or CAM mechanisms, it relies on the enzyme RuBisCO for initial carbon assimilation, a process that is typically most efficient in environments with moderate temperatures and sufficient water availability. Furthermore, this species is not a nitrogen fixer, meaning it lacks the symbiotic relationship with nitrogen-fixing bacteria (such as Rhizobium or Frankia) required to convert atmospheric nitrogen into a bioavailable form; consequently, it depends on the uptake of nitrates and ammonium from the soil to meet its nutritional requirements for growth and metabolic processes.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Cnidoscolus quercifolius is characterized by a biotic pollination syndrome, primarily relying on insects to facilitate the transfer of pollen. Upon successful fertilization, the plant develops a capsule-type fruit, which maintains a consistent length with a mean, minimum, and maximum measurement of 2.5 cm. This fruit is dehiscent, meaning it possesses the mechanism to split open at maturity to release its seeds. The subsequent dispersal of the plant's progeny follows a zoochorous syndrome, utilizing animals as the primary agents for transporting seeds to new locations.

Dehiscence :

dehiscent

Dispersal syndrome :

zoochorous

Fruit length max:

2.5 cm

Fruit type :

capsule

Pollination syndrome :

insect

Pollination syndrome :

biotic

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Cnidoscolus quercifolius 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. Pharmacognosy research

Chemicals

Cnidoscolus quercifolius has 9 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Terpenoids, CINNAMIC ACID, Coumarins, Favelanone, Flavonoids.

Terpenoids

1. Natural product research
2. Chemico-biological interactions

CINNAMIC ACID

1. Natural product research

Coumarins

1. Pharmacognosy research

Favelanone

1. Chemico-biological interactions

Flavonoids

1. Pharmacognosy research

LINAMARIN

1. Natural product research

Lignans

1. Pharmacognosy research

Naphthoquinones

1. Pharmacognosy research

Steroids

1. Natural product research

Activities

Cnidoscolus quercifolius has 2 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Analgesic, Antibiotic.

Analgesic

1. Natural product research

Antibiotic

1. Natural product research

Conditions

Cnidoscolus quercifolius has 4 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include analgesic, antibiotic, inflammation, melanoma.

Analgesic

1. Natural product research

Antibiotic

1. Natural product research

Inflammation

1. Pharmacognosy research

Melanoma

1. Chemico-biological interactions

Preparations

Cnidoscolus quercifolius has 5 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include C. quercifolius extracts, cytotoxic extract, ethanolic extract, ethanolic extract from barks, ethanolic extract from leaves.

C. quercifolius extracts

1. The journal of contemporary dental practice

Cytotoxic extract

1. Chemico-biological interactions

Ethanolic extract

1. Natural product research

Ethanolic extract from barks

1. Pharmacognosy research

Ethanolic extract from leaves

1. Pharmacognosy research