Chromolaena arnottiana

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Eupatorium arnottianum
• Eupatorium teucrioides

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae and order Asterales, it is a member of the Asteraceae family. Specifically, it is identified by the genus Chromolaena.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical distribution across the South American continent. In the western region, it can be found growing within the borders of Bolivia. Moving toward the southern part of the continent, its range extends into the northeast of Argentina. Additionally, the species is present in the northwest region of Argentina. Together, these locations define the natural habitat for Chromolaena arnottiana.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Chromolaena arnottiana is characterized by its ability to thrive within a specific altitudinal gradient, typically occupying montane or sub-montane environments. It is most commonly found across an elevational range starting from a minimum of 1000 m AMSL and extending up to a maximum of 3000 m AMSL. This wide vertical distribution suggests an adaptability to varying temperature regimes and atmospheric pressures associated with mid-to-high altitude ecosystems. Within these elevations, the plant often colonizes disturbed areas or forest margins, where it can take advantage of specific microclimatic conditions provided by the undulating terrain.

Elevational range max:

3000 m AMSL

Elevational range min:

1000 m AMSL

Life history

The life history of Chromolaena arnottiana is characterized by its status as a perennial plant, allowing it to persist in its environment over multiple growing seasons. Its developmental cycle involves a continuous process of growth and regeneration, which can exhibit variable tendencies depending on the specific environmental conditions and resource availability in its habitat. As a perennial species, it avoids the complete senescence seen in annuals, instead maintaining a long-term presence that enables it to establish dominance within its ecological niche through sustained vegetative and reproductive efforts.

Lifecycle :

perennial

Morphology

The morphology of Chromolaena arnottiana is characterized by its growth form as a non-woody subshrub and herb, exhibiting a primarily terrestrial existence rather than being aquatic or an epiphyte. As a self-supporting plant, it does not function as a climber, liana, or vine, nor does it act as an obligatory or facultative climber. It grows as an independent organism, lacking any parasitic nature. Structurally, the plant is defined by its non-woody habit, maintaining a stature consistent with terrestrial shrubs or subshrubs rather than woody trees or graminoids.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

subshrub

Parasite :

independent

Woodiness :

non-woody

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Chromolaena arnottiana has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Mellein, NECTRIAPYRONE.

Mellein

1. Zeitschrift fur Naturforschung. C, Journal of biosciences

NECTRIAPYRONE

1. Zeitschrift fur Naturforschung. C, Journal of biosciences