Rehmannia piasezkii

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Rehmannia elata
• Rehmannia glutinosa var. piasezkii
• Rehmannia angulata
• Rehmannia glutinosa var. angulata

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant, Rehmannia piasezkii, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Lamiales and the family Orobanchaceae. Finally, it is identified by its specific genus, Rehmannia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known scientifically as Rehmannia piasezkii, exhibits a specific range of occurrence within East Asia. Its geographical distribution is primarily concentrated within the various provinces of China. Specifically, the species can be found throughout the China South-Central region. Additionally, its presence extends into the China North-Central areas. This pattern highlights the plant's preference for these particular longitudinal and latitudinal zones.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rehmannia piasezkii is defined by its specific altitudinal distribution within montane ecosystems, where it occupies a distinct vertical niche. This medicinal species is primarily found at mid-to-high elevations, maintaining a minimum presence at 800 m AMSL and extending its habitat up to a maximum of 1500 m AMSL. The ecological core of its distribution centers around a mean elevation of 1150 m AMSL, suggesting that the plant thrives best within this specific atmospheric and thermal band. This elevational range dictates the environmental parameters, such as temperature fluctuations, moisture availability, and soil compositions, that characterize its natural growing conditions.

Elevational range max:

1500 m AMSL

Elevational range mean:

1150 m AMSL

Elevational range min:

800 m AMSL

Morphology

The morphology of Rehmannia piasezkii is characterized by its relatively low-growing stature, typically presenting as a small herb or subshrub. The plant height exhibits notable variability depending on environmental conditions, with individual specimens ranging from a minimum of 0.3 m to a maximum of 1 m. On average, the plant maintains a height of approximately 0.65 m, contributing to its compact growth habit within its natural habitat.

Plant height max:

1 m

Plant height mean:

0.65 m

Plant height min:

0.3 m

Physiology

The physiological profile of Rehmannia piasezkii is characterized by specialized vegetative structures designed to optimize photosynthetic efficiency and gas exchange. The plant exhibits a robust leaf morphology, with anatomical dimensions that support its metabolic requirements; specifically, the leaves possess a mean length of 15 cm and a mean width of 7 cm. These dimensions contribute to a substantial surface area, facilitating effective light interception and transpiration rates necessary for maintaining cellular turgor and driving nutrient transport through the vascular system. The structural integrity of these leaves provides a stable platform for the biochemical processes occurring within the mesophyll cells, ensuring the efficient conversion of solar energy into chemical energy while managing the physiological demands of its specific environmental niche.

Leaf length mean:

15 cm

Leaf width mean:

7 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Rehmannia piasezkii has 3 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, root, stem.

Leaf

1. Plant physiology and biochemistry : PPB

Root

1. Plant physiology and biochemistry : PPB

Stem

1. Plant physiology and biochemistry : PPB

Chemicals

Rehmannia piasezkii has 1 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include ANTHOCYANIN.

ANTHOCYANIN

1. Plant physiology and biochemistry : PPB