Helonias thibetica

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Ypsilandra thibetica var. angustifolia
• Ypsilandra thibetica
• Ypsilandra cavaleriei
• Ypsilandra kansuensis

Sources: Wikidata

Taxonomical Classification

This plant, Helonias thiabetica, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Liliales. It is further categorized into the family Melanthiaceae and the genus Helonias.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known scientifically as Helonia thiabetica, exhibits a specific pattern of growth across various regions of China. Its geographical presence is primarily concentrated within the central and southern territories of the country. Specifically, it can be found growing in the South-Central regions of China. Additionally, the species is documented to inhabit the North-Central parts of the nation. Finally, its distribution extends into the Southeast regions of China, completing its regional range.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Helonia thiabetica is characterized by its specific altitudinal distribution within montane ecosystems. This species thrives across a significant vertical gradient, occupying habitats that range from a minimum elevation of 1000 m AMSL to a maximum elevation of 2850 m AMSL. The plant demonstrates a preference for mid-to-high altitude environments, with its ecological niche centered around a mean elevation of 1637.5 m AMSL. This distribution pattern suggests an adaptation to the varying temperature regimes and atmospheric pressures found within these specific elevation bands.

Elevational range max:

2850 m AMSL

Elevational range mean:

1637.5 m AMSL

Elevational range min:

1000 m AMSL

Life history

The life history of Helonia tibetica is characterized by its classification as a cryptophyte, a strategy that enables it to survive unfavorable environmental conditions by protecting its regenerative buds underground. More specifically, it functions as a geophyte, utilizing specialized underground storage organs to endure seasonal shifts in its high-altitude habitat. This life form allows the plant to remain dormant during periods of extreme cold or drought, emerging to complete its reproductive cycle only when favorable moisture and temperature levels are met. By maintaining its vital structures beneath the soil surface, Helonia tibetica ensures its persistence within its specific ecological niche.

Life form :

geophyte

Life form :

cryptophyte

Morphology

The morphology of Helonia s thiabetica is characterized by its specific growth habit and structural composition. This plant functions as a self-supporting climber, relying on its own structural integrity rather than external hosts for vertical progression. It is an independent organism, showing no parasitic tendencies, and maintains a strictly terrestrial existence rather than an epiphytic one. Furthermore, the physical structure of the plant is defined by its non-woody nature, lacking significant lignification in its stems and tissues.

Climber :

self-supporting

Epiphyte :

terrestrial

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiological architecture of Helonia tibetica is characterized by significant morphological variability in its foliage, which serves as a primary interface for gas exchange and photosynthetic activity. The leaf dimensions exhibit a wide developmental range, with mean leaf lengths recorded at 16.5 cm, though individual specimens can fluctuate significantly from a minimum of 6 cm to a maximum length of 27 cm. This longitudinal variation is accompanied by a corresponding breadth in leaf width, which ranges from a minimum of 1.5 cm to a maximum of 4.8 cm. Such structural plasticity in the leaf lamina suggests an adaptive physiological mechanism to optimize light interception and transpiration rates across varying environmental gradients.

Leaf length max:

27 cm

Leaf length mean:

16.5 cm

Leaf length min:

6 cm

Leaf width max:

4.8 cm

Leaf width min:

1.5 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Helonias thibetica has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include ypsilandroside G.

ypsilandroside G

1. Bioorganic chemistry

Activities

Helonias thibetica has 2 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antifungal.

Antibacterial

1. Chemistry & biodiversity
2. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Antifungal

1. Chemistry & biodiversity

Preparations

Helonias thibetica has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include whole plants.

Whole plants

1. Planta medica