Chresta exsucca

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Eremanthus exsuccus
• Vernonia exsucca
• Eremanthus imbricatus

Sources: Wikidata, Catalogue of Life

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 placed in the order Asterales and the family Asteraceae. Finally, it is identified by the genus Chresta and the specific species Chresta exsucca.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide presence across several distinct regions of South America. It can be found growing within the borders of Bolivia in Western South America. In Brazil, its distribution is extensive, covering the North and Northeast territories. Furthermore, the species is established throughout the West-Central regions of the country. Finally, it also inhabits the Southeast portion of the Brazilian landscape.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Chresta exsucca is fundamentally defined by its adaptation to the specialized environments of the Brazilian highlands, specifically occurring within the Campo Rupestre and the broader Cerrado (latu sensu) biomes. These habitats are characterized by nutrient-poor, highly acidic, and well-drained soils, often overlying quartzitic or rupestrian substrates that present significant physiological challenges for vegetation. In the Campo Rupestre, the plant exists within a mosaic of rocky outcrops and shrubby vegetation, where it must endure high solar radiation, intense seasonal fluctuations in moisture, and periodic fire regimes typical of the Cerrado ecosystem. This ecological niche dictates specific survival strategies, such as efficient water management and nutrient conservation, allowing the species to thrive in these open, sun-drenched, and structurally complex landscapes.

Habitat :

Campo Rupestre, Cerrado (lato sensu)

Morphology

The morphology of Chresta exsucca is characterized by a woody structure that presents as a subshrub or shrub-like growth form. While it possesses the structural integrity of a woody plant, it functions as a self-supporting entity rather than an obligatory or facultative climber, such as a liana or vine. In terms of its ecological positioning, the plant is terrestrial in nature, lacking aquatic or semiaquatic tendencies, and it does not exhibit epiphytic behavior, remaining firmly rooted in the soil. Furthermore, Chresta exsucca is an independent organism, showing no parasitic characteristics, and maintains its upright, self-supporting habit without the need for external host support.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Growth form :

subshrub

Parasite :

independent

Woodiness :

woody

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Chresta exsucca has 3 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include flower, leaf, stem.

Flower

1. Ultrasonics sonochemistry

Leaf

1. Ultrasonics sonochemistry

Stem

1. Ultrasonics sonochemistry

Chemicals

Chresta exsucca has 2 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include Steroids, triterpenoids.

Steroids

1. Ultrasonics sonochemistry

triterpenoids

1. Ultrasonics sonochemistry