Rungia pectinata

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Diapedium pectinatum var. parviflorum
• Rungia parviflora
• Diapedium pectinatum
• Rungia coerulea
• Rungia parviflora var. submutica
• Rungia coerulea var. parvifolia
• Dicliptera coerulea
• Justicia pectinata
• Justicia infracta
• Rungia pectinata var. clarkeana
• Rungia latior var. malabarensis
• Justicia parviflora var. ciliata
• Rungia parviflora var. aspera
• Rungia angustifolia
• Rungia parviflora var. hirsuta
• Rungia parviflora var. ciliata
• Rungia origanoides
• Diapedium latius var. integerrimum
• Rungia parviflora subsp. pectinata
• Rungia polygonoides
• Diapedium pectinatum f. lacteum
• Diapedium pectinatum var. murale
• Diapedium pectinatum var. brevifolium
• Rungia parviflora var. pectinata
• Dicliptera pectinata

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. It further falls under the subclass Magnoliidae and the order Lamiales, specifically within the family Acanthaceae. Finally, its taxonomic identity is defined by the genus Rungia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical range spanning across parts of Asia. Within the Arabian Peninsula, its presence is specifically noted in the countries of Oman and Yemen. Moving toward East Asia, the species is widely distributed throughout various regions of China. Specifically, it can be found in China South-Central and the coastal areas of China Southeast. Additionally, the plant's habitat extends to the tropical island of Hainan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rungia pectinata is characterized by its ability to inhabit a broad altitudinal spectrum, allowing it to adapt to diverse montane environments. This species thrives across a significant vertical gradient, with its distribution spanning from a minimum elevation of 200 m AMSL to a maximum elevation of 1600 m AMSL. This wide elevational range suggests a capacity to endure varying temperature regimes, moisture availability, and atmospheric pressures found between lowland subtropical zones and mid-elevation montane habitats. Such ecological plasticity enables the plant to occupy various niche spaces within its native range, potentially interacting with a wide array of soil compositions and microclimates associated with these shifting altitudes.

Elevational range max:

1600 m AMSL

Elevational range min:

200 m AMSL

Life history

The life history of Rungia pectinata is characterized by an annual lifecycle, meaning the plant completes its entire biological development—from germination and vegetative growth to flowering and seed production—within a single growing season. As an annual species, it must rapidly exploit favorable environmental conditions to establish itself, accumulate enough energy reserves to produce reproductive structures, and ultimately disperse its seeds before the onset of unfavorable seasonal changes or senescence. This rapid developmental trajectory ensures that the population persists through the continuous production of seeds, which remain dormant in the soil to await the subsequent growing period.

Lifecycle :

annual

Morphology

The morphology of Rungia pectinata is characterized by a non-woody, herbaceous growth form, appearing as a small herb or forb. It functions as an independent organism, neither acting as a parasite nor as an epiphyte, as it maintains a primarily terrestrial habit, though it can exist within aquatic or semiaquatic environments. The plant is self-supporting rather than a climber and reaches a maximum plant height of approximately 0.15 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

0.15 m

Woodiness :

non-woody

Physiology

The physiology of Rungia pectinata is characterized by specific morphological adaptations that support its metabolic processes and structural integrity. A key physiological indicator of its vegetative development is its leaf size, which exhibits a leaf length mean of 6 cm. This measurement reflects the plant's capacity for photosynthetic surface area optimization, facilitating efficient light absorption and gas exchange necessary for autotrophic growth. The regulation of these leaf dimensions is closely tied to the plant's hydraulic conductivity and cellular expansion rates, which are influenced by environmental moisture and nutrient availability. Through these physiological mechanisms, the plant maintains turgor pressure and manages transpiration, ensuring stable metabolic functions across its growing season.

Leaf length mean:

6 cm

Reproduction

The reproduction of Rungia pectinata is characterized by specific morphological dimensions regarding its reproductive structures. The plant produces an inflorescence that typically measures between a minimum of 0.01 m and a maximum of 0.03 m in length. Following successful fertilization, the development of the fruit occurs, which maintains a very consistent size profile; the fruit length is uniform across its range, with a minimum, mean, and maximum length all measured at 0.3 cm.

Fruit length max:

0.3 cm

Inflorescence length max:

0.03 m

Inflorescence length min:

0.01 m

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Rungia pectinata has 5 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Trans-Nerolidyl formate, Umbelliferone, Widdrol, betaine, coumarin.

Trans-Nerolidyl formate

1. Journal of cellular and molecular medicine

Umbelliferone

1. Journal of ethnopharmacology

Widdrol

1. Journal of cellular and molecular medicine

betaine

1. Journal of ethnopharmacology

coumarin

1. Journal of ethnopharmacology

Activities

Rungia pectinata has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antidiabetic, Antioxidant.

Antidiabetic

1. TheScientificWorldJournal

Antioxidant

1. TheScientificWorldJournal

Medicinal Uses

Rungia pectinata has 3 reported medicinal uses identified across 0 scientific publications and several other databases. The most consistently reported uses include cancer, infectious diseases, inflammation.

Most Reported Uses

Preparations