Typhonium roxburghii

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Dracunculus divaricatus
• Typhonium divaricatum var. roxburghii
• Typhonium amboinense
• Arum diversifolium
• Typhonium mottleyanum
• Typhonium schottii
• Typhonium javanicum
• Typhonium divaricatum var. mottleyanum
• Typhonium divaricatum var. robustum
• Typhonium divaricatum var. schottii

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, placing it within the class Equisetopsida and subclass Magnoliidae. It is further classified under the order Aliasmaetales and the family Araceae. Ultimately, its specific taxonomic identity is defined by the genus Typhonium.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical range spanning across several distinct regions. In East Tropical Africa, its presence is noted within the borders of Tanzania. The Western Indian Ocean also hosts the species, specifically in the Comoros. Moving toward Eastern Asia, it can be found in the Ogasawara-shoto islands as well as in Taiwan. Finally, its distribution extends to South-Central China.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Typhonium roxburghii is characterized by its specialized survival strategies, functioning primarily as a geophyte and a cryptophyte. As a geophyte, the plant relies on underground storage organs, such as tubers or corms, to persist through unfavorable environmental conditions, allowing it to remain dormant before re-emerging when optimal moisture and temperature levels are met. Its classification as a cryptophyte further emphasizes this life cycle, as its perennating buds are located safely beneath the soil surface or at ground level, protecting them from herbivory and extreme climatic fluctuations. This combination of traits enables the species to navigate seasonal shifts by retreating into its subterranean structures, ensuring long-term survival and the ability to regenerate its above-ground vegetative structures during favorable growing seasons.

Life form :

geophyte

Life form :

cryptophyte

Morphology

The morphology of Typhonium roxburghii is characterized by its growth form as a non-woody herb, reaching a maximum plant height of approximately 0.3 m. As an independent organism, it does not exhibit parasitic behavior and is classified as a terrestrial plant, rather than an epiphyte or an aquatic species, though it can inhabit environments ranging from terrestrial to semiaquatic settings. The plant is self-supporting in its structure, lacking the climbing mechanisms of a liana or vine, and maintains a consistent herbaceous habit throughout its development.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

0.3 m

Woodiness :

non-woody

Physiology

The physiology of Typhonium roxburgii is characterized by its metabolic processes and specialized structural adaptations. The plant utilizes the C3 photosynthetic pathway, a mechanism typical of most terrestrial angiosperms, wherein carbon dioxide is fixed directly through the Calvin cycle within the mesophyll cells using the enzyme RuBisCO. This metabolic framework governs its carbon assimilation efficiency and energy production, influencing its growth patterns in shaded or moist environments. Beyond its carbon fixation strategy, the plant exhibits physiological adaptations related to its subterranean storage organs, which facilitate nutrient sequestration and survival during dormant periods. Its water relations and nutrient uptake are integrated with its cellular respiration to support the development of its characteristic tuberous structures, ensuring metabolic stability throughout its life cycle.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Typhonium roxburghii has 3 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include TDL, linoleic acid, palmitic acid.

TDL

1. Journal of biochemistry and molecular biology

linoleic acid

1. Phytomedicine : international journal of phytotherapy and phytopharmacology

palmitic acid

1. Phytomedicine : international journal of phytotherapy and phytopharmacology

Preparations

Typhonium roxburghii has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include methanolic plant extracts.

Methanolic plant extracts

1. Phytomedicine : international journal of phytotherapy and phytopharmacology