Cordia oncocalyx

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Auxemma oncocalyx
• Auxemma gardneriana

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. It is classified within the order Boraginales and the family Boraginaceae. Finally, its taxonomic designation is completed by the genus Cordia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is specifically located within a very limited geographical range. Its natural distribution is found exclusively in the country of Brazil. Within this nation, it is restricted to the Northeast region. Because of this specific localization, the species is characteristic of that particular area's flora. Consequently, the plant remains a regional botanical feature of the Brazilian Northeast.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Cordia oncocalyx is intrinsically linked to the Caatinga (stricto sensu) biome, where it has evolved to thrive within this unique semi-arid ecosystem. This habitat is characterized by pronounced seasonality, featuring long periods of drought punctuated by brief, intense rainy seasons, which necessitates specialized physiological adaptations for water conservation and survival. As a component of the Caatinga flora, the species exists within a landscape of deciduous vegetation, where its life cycle is closely synchronized with the availability of moisture and the fluctuating environmental stressors typical of the Brazilian semiarid region.

Habitat :

Caatinga (stricto sensu)

Life history

The life history of Cordia oncocalyx is characterized by its nature as a perennial organism, allowing it to persist through multiple growing seasons and establish a long-term presence in its habitat. As part of its seasonal physiological cycle, the plant exhibits deciduousness, shedding its foliage periodically, which typically serves as an adaptation to environmental fluctuations or specific seasonal changes.

Deciduousness :

deciduous

Lifecycle :

perennial

Morphology

The morphology of Cordia oncocalyx is characterized by a woody growth form, specifically manifesting as a tree. This species is a terrestrial plant that functions as an independent organism rather than a parasite or an epiphyte. In terms of its physical stature, the plant typically reaches a mean height of 7.5 m, though it is capable of growing to a maximum height of 12 m. Unlike climbing vines or lianas, its structure is self-supporting, maintaining a sturdy upright habit.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

12 m

Plant height mean:

7.5 m

Woodiness :

woody

Physiology

The physiology of Cordia oncocalyx is characterized by its metabolic processes and nutrient acquisition strategies, which play a critical role in its growth and survival within its natural habitat. As a member of the Boraginaceae family, its physiological functions are geared toward efficient photosynthesis and resource management to support its woody structure. Regarding its interaction with soil nutrients, the plant does not exhibit the capacity for biological nitrogen fixation; specifically, it is not a nitrogen fixer, meaning it lacks the symbiotic relationship with diazotrophic bacteria required to convert atmospheric nitrogen into a usable form. Consequently, its physiological dependence on soil nitrogen levels is high, relying on the uptake of nitrates or ammonium through its root system to support protein synthesis and chlorophyll production. This metabolic profile necessitates a stable nutrient environment to maintain its vegetative vigor and reproductive success.

Nitrogen fixer :

no

Reproduction

The reproduction of Cordia oncocalyx is driven by a biotic pollination syndrome, relying on living organisms rather than abiotic factors to facilitate the transfer of pollen. This reproductive process is primarily mediated by insects, which serve as the key functional group in its pollination ecology. Specifically, the plant's reproductive success is closely linked to insect activity, involving a diverse range of pollinators such as bees, beetles, ants, butterflies, moths, and flies. By utilizing these diverse insect vectors, the plant ensures effective genetic exchange and fertilization through specialized biotic interactions.

Pollination syndrome :

insect

Pollination syndrome :

biotic

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Cordia oncocalyx has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Oncocalyxone A.

Oncocalyxone A

1. Microbial pathogenesis
2. Teratogenesis, carcinogenesis, and mutagenesis

Activities

Cordia oncocalyx has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antimicrobial.

Antibacterial

1. Microbial pathogenesis

Antimicrobial

1. Microbial pathogenesis