Pterocaulon polystachyum

Names and Synonyms

Scientific Names

Accepted name

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Asterales, it is classified under the family Asteraceae. It is further identified by its specific genus, Pterocaulon, and its species name, polystachyum.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across several distinct regions of South America. Within Brazil, its presence is documented in the West-Central, Southeast, and South regions. Moving toward the southern part of the continent, it is also found in the Northeast of Argentina. Furthermore, its range extends into the country of Paraguay. Collectively, these areas highlight the specific geographical footprint of Pterocaulon polyschachyum.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pterocaulon polyschachum is characterized by its presence in specific open vegetation formations, primarily inhabiting Campo de Altitude and Campo Limpo environments. This species demonstrates a broad altitudinal distribution, thriving across a wide elevational gradient that begins at sea level (0 m AMSL) and extends up to a maximum elevation of 500 m AMSL. Its preference for these open habitats suggests an adaptation to areas with significant solar exposure and specific soil conditions typical of these grassland and highland field ecosystems.

Elevational range max:

500 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Campo de Altitude, Campo Limpo

Life history

The life history of Pterocaulon polyschachum is characterized by its status as a perennial herb, meaning it persists through multiple growing seasons rather than completing its cycle in a single year. As a perennial species, it maintains a robust presence in its habitat, often utilizing established root systems to survive periods of environmental stress and to re-emerge during favorable conditions. This long-lived lifecycle allows the plant to establish a stable population, undergoing successive stages of vegetative growth and seasonal flowering. Throughout its life, it undergoes a repetitive cycle of maturation, reproduction via seed dispersal, and subsequent regrowth, ensuring its continued existence within its ecological niche.

Lifecycle :

perennial

Morphology

The morphology of Pterocaulon polyschachum is characterized by its growth form as a non-woody herb, manifesting as a herbaceous plant that lacks woody tissue. It functions as an independent organism, neither acting as a parasite nor an epiphyte, as it maintains a primarily terrestrial existence. Although its ecological niche can vary across aquatic, semiaquatic, and terrestrial habitats, it does not exhibit climbing behaviors such as a liana or vine; instead, it is a self-supporting plant that does not require external structures for stability.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Pterocaulon polystachyum has 11 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 5-methoxy-6,7-methylenedioxycoumarin, Prenyletin methyl ether, 6-(1,1-dimethyl-2-propenyl)-7-hydroxycoumarin, Ayapin, Demethylnieshoutin.

5-methoxy-6,7-methylenedioxycoumarin

1. Planta medica
2. Molecules (Basel, Switzerland)

Prenyletin methyl ether

1. Planta medica
2. Molecules (Basel, Switzerland)

6-(1,1-dimethyl-2-propenyl)-7-hydroxycoumarin

1. Planta medica

Ayapin

1. Planta medica

Demethylnieshoutin

1. Planta medica

Haplopinol methyl ether

1. Planta medica

Isoscopoletin

1. Planta medica

Isovirgatenol

1. Planta medica

Obtusinin

1. Planta medica

PRENYLETIN

1. Planta medica

Preparations

Pterocaulon polystachyum has 3 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include Aerial parts, extracts, hexane extract.

Aerial parts

1. Planta medica

Extracts

1. Molecules (Basel, Switzerland)

Hexane extract

1. Environmental toxicology and pharmacology