Chinese varnish tree

Names and Synonyms

Common Names

• Potanin Sumac

Scientific Names

Accepted name

Synonyms

• Rhus henryi

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Sapindales and the family Anacardiaceae. Finally, its specific taxonomic placement is within the genus Rhus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known as Rhus potaninii, exhibits a specific geographical distribution across several regions of China. It can be found growing throughout the South-Central part of the country. Additionally, its presence extends into the North-Central areas of China. The species is also documented to inhabit the Southeast regions of the nation. Together, these locations define the primary natural range of this medicinal plant.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rhus potaninii is characterized by its specific distribution across varying altitudinal gradients within its natural habitat. This species is primarily found inhabiting montane environments, demonstrating a broad vertical range that spans from a minimum elevation of 900 m AMSL to a maximum height of 2500 m AMSL. Throughout its preferred landscape, the plant maintains a mean elevation of approximately 1700 m AMSL, suggesting an ecological preference for mid-to-high altitude zones where specific temperature and moisture regimes are present.

Elevational range max:

2500 m AMSL

Elevational range mean:

1700 m AMSL

Elevational range min:

900 m AMSL

Life history

The life history of Rhus potaninii is characterized by its developmental cycle as a woody perennial, exhibiting a growth pattern that is notably influenced by its environmental context. A defining physiological trait of this species is its deciduousness, as it follows a deciduous growth habit where foliage is shed periodically, though some observations indicate its status can be variable, ranging from deciduous to evergreen depending on local climatic stability. The life cycle begins with seed germination, leading to the establishment of a robust woody structure capable of surviving seasonal shifts. As the plant matures, it undergoes annual cycles of leaf production and senescence, a process critical for nutrient cycling and dormancy during unfavorable periods. This rhythmic shedding and regrowth of leaves facilitate its adaptation to specific ecological niches, ensuring its survival through varying degrees of moisture and temperature availability.

Deciduousness :

deciduous

Morphology

The morphology of Rhus potaninii is characterized by a woody growth form, specifically categorized as a tree. It functions as an independent organism, neither acting as a parasite nor an epiphyte, maintaining a terrestrial existence rather than being aquatic or semiaquatic. Unlike climbing species such as lianas or vines, this plant is self-supporting and does not exhibit obligatory or facultative climbing habits.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Rhus potaninii is characterized by specific metabolic and structural adaptations, most notably its utilization of the C3 photosynthetic pathway for carbon fixation. This metabolic framework governs its energy production and gas exchange processes, distinguishing it from plants employing C4 or CAM pathways. Structurally, the plant exhibits specific anatomical properties reflected in its stem tissue, which maintains a mean stem specific density (SSD) of 542 mg/cm³. This density value indicates the compact nature of its woody tissues, contributing to the overall mechanical strength and resource allocation strategies of the species.

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

542 mg/cm³

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Rhus potaninii has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Anticancer.

Anticancer

1. Evidence-based complementary and alternative medicine : eCAM