Rheum hotaoense

Names and Synonyms

Scientific Names

Accepted name

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it is situated in the order Caryophyllales and the family Polygonaceae. Finally, it is identified by the genus Rheum, specifically as the species Rheum hotaoense.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known scientifically as Rheum hotaoense, possesses a specific and localized range within Asia. Its natural habitat is primarily concentrated within the vast territories of China. Specifically, the species is found growing in the North-Central regions of the country. This geographical concentration suggests that the plant thrives under the unique climatic conditions of these central provinces. Consequently, understanding this regional distribution is essential for studying its ecological requirements and conservation needs.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rheum hotaoense is defined by its specific niche within high-altitude montane environments, where it thrives across a distinct vertical gradient. This species is typically found inhabiting alpine or subalpine zones, occupying an elevational range that spans from a minimum of 1000 m AMSL to a maximum of 1800 m AMSL. The distribution of the plant is most concentrated around a mean elevation of 1400 m AMSL, suggesting that these middle-altitude ranges provide the optimal combination of temperature, moisture, and soil conditions required for its growth and survival.

Elevational range max:

1800 m AMSL

Elevational range mean:

1400 m AMSL

Elevational range min:

1000 m AMSL

Morphology

The morphology of Rheum hochstetteri (often referred to in specific contexts as Rheum hotaoense) is characterized by its robust growth habit, with the plant height typically ranging from a minimum of 0.8 m to a maximum of 1.5 m, maintaining an average height of approximately 1.15 m. The plant structure is defined by its large, fleshy leaves and thick, substantial rhizomes that anchor it to its habitat. The foliage is expansive, often featuring broad, rugose leaves with prominent venation that contribute to the plant's overall structural volume. As the plant reaches its full height, it develops a sturdy upright stature capable of supporting its reproductive structures.

Plant height max:

1.5 m

Plant height mean:

1.15 m

Plant height min:

0.8 m

Reproduction

The reproduction of Rheum hotaoense is characterized by the production of specialized fruit structures that serve as the primary vehicle for seed dispersal. The morphology of these fruits is relatively consistent, exhibiting specific dimensional parameters across different specimens. Based on morphological observations, the fruit width typically fluctuates within a narrow range, with a recorded minimum width of 0.75 cm and a maximum width reaching up to 0.85 cm. On average, the fruit width maintains a mean value of 0.8 cm, ensuring a standardized structural integrity essential for the plant's reproductive success and the eventual distribution of its progeny within its natural habitat.

Fruit width max:

0.85 cm

Fruit width mean:

0.8 cm

Fruit width min:

0.75 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Rheum hotaoense 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 root.

Root

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

Chemicals

Rheum hotaoense has 5 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Aloe emodin, Chrysophanol, Rhein, emodin, rhapontin.

Aloe emodin

1. Journal of chromatography. A

Chrysophanol

1. Journal of chromatography. A

Rhein

1. Journal of chromatography. A

emodin

1. Journal of chromatography. A

rhapontin

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

Conditions

Rheum hotaoense has 1 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include HIV-1.

Hiv-1

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