Himatanthus drasticus

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Plumeria fallax
• Himatanthus fallax
• Plumeria drastica

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 organized into the order Gentianales and the family Apocynaceae. Finally, it is identified by the genus Himatanthus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern primarily focused across Northern South America. It can be found inhabiting the natural landscapes of French Guiana, Guyana, and Suriname. Furthermore, its presence extends significantly into the Brazilian territory. Within Brazil, the species is notably distributed throughout the Northeast region. Additionally, the plant is also documented to grow within the Southeast region of the country.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Himatanthus drasticus is characterized by its significant adaptability to diverse Brazilian biomes, allowing it to thrive across a wide range of environmental conditions. It is most frequently found within the Caatinga (stricto sensu), where it must withstand semi-arid conditions, but it also demonstrates presence in the nutrient-poor, rocky environments of the Campo Rupestre. The species extends its ecological footprint into the Carrasco landscapes and the more expansive Cerrado (lato sensu), showcasing resilience to seasonal moisture fluctuations. Furthermore, it occupies more humid niches, such as the Floresta Ciliar or Galeria, where it benefits from the constant water availability provided by riparian corridors. This broad distribution across varied soil types and moisture gradients highlights its ability to integrate into both xeric and mesic ecosystems.

Habitat :

Caatinga (stricto sensu), Campo Rupestre, Carrasco, Cerrado (lato sensu), Floresta Ciliar ou Galeria

Life history

The life history of Himatanthus drasticus is characterized by its existence as a perennial plant, ensuring its long-term presence within its ecological niche. As a phanerophyte, it develops significant woody stems that elevate its photosynthetic tissues well above the ground level, though it can also be categorized under the nanophanerophyte life form depending on its specific growth stage and environmental adaptations. The species exhibits a deciduous nature, undergoing periodic leaf shedding as part of its seasonal biological rhythm.

Deciduousness :

deciduous

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Himatanthus drasticus is characterized by a woody growth form, specifically classified as a tree. This self-supporting plant typically reaches a mean height of 5 m, though it can attain a maximum height of up to 7 m. As a terrestrial species, it does not exhibit aquatic or semi-aquatic tendencies, nor does it function as an epiphyte; it remains firmly grounded as an independent organism rather than an obligatory or facultative climber. Furthermore, it is a non-parasitic species, maintaining an independent biological existence without relying on host plants.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

7 m

Plant height mean:

5 m

Woodiness :

woody

Physiology

The physiology of Himatanthus dracarius is characterized by its complex metabolic pathways and specialized anatomical structures designed for survival in tropical environments. As a member of the Apocynaceae family, the plant exhibits a distinct secondary metabolism, most notably the synthesis of diverse bioactive compounds such as indole alkaloids, iridoids, and cardiac glycosides within its laticiferous system. This system facilitates the production and transport of a dense, milky latex that serves both as a defense mechanism against herbivory and a reservoir for specialized metabolites. From a nutritional standpoint, the plant does not possess the biological mechanisms required for symbiotic nitrogen fixation; specifically, it is not a nitrogen fixer, as it lacks the specialized root nodules and associated rhizobia necessary to convert atmospheric nitrogen into usable forms. Instead, its growth and physiological development are entirely dependent on the uptake of nitrogenous compounds, such as nitrates and ammonium, directly from the soil through its root system. Its photosynthetic processes and water regulation are adapted to maintain high turgor pressure and efficient gas exchange under humid conditions, supporting its robust vegetative growth and reproductive cycles.

Nitrogen fixer :

no

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Himatanthus drasticus 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 leaf.

Leaf

1. Molecules (Basel, Switzerland)

Chemicals

Himatanthus drasticus has 15 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Plumieride, 3-O-Caffeoylquinic acid, 5-O-Caffeoylquinic acid, Betulin, CATECHIN.

Plumieride

1. Molecules (Basel, Switzerland)
2. Journal of ethnopharmacology

3-O-Caffeoylquinic acid

1. Journal of ethnopharmacology

5-O-Caffeoylquinic acid

1. Journal of ethnopharmacology

Betulin

1. Journal of ethnopharmacology

CATECHIN

1. Journal of ethnopharmacology

CHLOROGENIC ACID

1. Molecules (Basel, Switzerland)

Latex

1. Environmental monitoring and assessment

Lupeol acetate

1. Journal of ethnopharmacology

RUTIN

1. Molecules (Basel, Switzerland)

Saponins

1. Journal of ethnopharmacology

Activities

Himatanthus drasticus has 6 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Analgesic, Antiallergic, Antimicrobial, Antineoplastic, Antiproliferative.

Analgesic

1. Journal of ethnopharmacology

Antiallergic

1. Journal of ethnopharmacology

Antimicrobial

1. Molecules (Basel, Switzerland)

Antineoplastic

1. Journal of ethnopharmacology

Antiproliferative

1. Molecules (Basel, Switzerland)

Cytotoxic

1. Journal of natural products

Medicinal Uses

Himatanthus drasticus has 9 reported medicinal uses identified across 1 scientific publications and several other databases. The most consistently reported uses include Klebsiella pneumoniae, Pseudomonas aeruginosa, Sarcoma 180, Staphylococcus aureus, analgesic.

Most Reported Uses

Preparations