Arisaema yunnanense

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a broad geographical distribution across parts of East and Southeast Asia. Within China, it is commonly found in the South-Central and Southeast regions. Its range extends into the Indo-China peninsula, where it inhabits several different countries. Specifically, it can be located in the mountainous or forested areas of Myanmar and Thailand. Additionally, the species is documented to grow naturally within the borders of Vietnam.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Arisaema yunnanense is defined by its specific adaptation to montane environments within its native range. This species thrives within a distinct vertical distribution, occupying high-altitude niches that typically feature cool, moist, and shaded microhabitats suitable for aroids. Its ecological presence is strictly bounded by an elevational range that begins at 1400 m AMSL and extends to a maximum of 3200 m AMSL. Within this altitudinal gradient, the plant is influenced by varying levels of atmospheric pressure, temperature fluctuations, and moisture availability characteristic of subalpine zones, which dictate its seasonal growth cycles and reproductive success.

Elevational range max:

3200 m AMSL

Elevational range min:

1400 m AMSL

Life history

The life history of Arisaema yunnanense is characterized by its specialized survival strategy as a perennial herb that relies on underground storage organs to endure seasonal environmental shifts. Classified under two distinct life form categories, the plant functions as a geophyte, utilizing a subterranean structure—typically a tuber or corm—to protect its vital tissues during dormant periods. Additionally, it is identified as a cryptophyte, meaning its regenerative buds are located safely beneath the soil surface, shielding them from frost and desiccation. This life cycle allows the plant to remain dormant during unfavorable conditions and rapidly emerge when environmental cues signal the onset of the growing season, facilitating its survival in its specific ecological niche.

Life form :

geophyte

Life form :

cryptophyte

Morphology

The morphology of Arisaema yunnanense is characterized by its growth form as a non-woody herb, existing as a terrestrial species that does not require an aquatic or semiaquatic habitat. As a self-supporting plant, it lacks any climbing mechanisms, such as being a liana or a vine, and functions as an independent organism rather than a parasite or an epiphyte. The plant maintains a consistent herbaceous structure, categorized as a non-woody forb, which allows it to thrive in its natural terrestrial environment without reliance on host plants for support or nutrients.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Reproduction

The reproduction of Ariosa yunnanense involves the production of specialized seeds that exhibit a highly consistent physical profile. Based on empirical data, the seed mass of this species is characterized by a precise uniformity, with a mean seed mass of 0.01203 g. This consistency is reflected across its entire range, as both the maximum and minimum recorded seed mass values are identical at 0.01203 g. Such a lack of variance in seed mass suggests a highly regulated developmental process during the maturation of the seeds within the plant's reproductive structures.

Seed mass mean:

0.01203 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Arisaema yunnanense has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include stem.

Stem

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

Preparations

Arisaema yunnanense has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include Shanzhu Banxia.

Shanzhu banxia

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