Definition
Codonopsis pilosula is a perennial herbaceous plant in the family Campanulaceae, cultivated and harvested primarily for its tuberous root, which is employed in traditional Chinese medicine.
Overview
Native to East Asia, C. pilosula is distributed across temperate regions of China, Japan, Korea, and the Russian Far East. The species grows on forest margins, grassy slopes, and alpine meadows at elevations ranging from 500 to 2,500 m. It is commonly cultivated in agricultural settings for pharmaceutical and dietary supplement production. The plant is known by several vernacular names, the most prevalent being “Dang Shen” (党参) in Chinese.
Etymology / Origin
The generic name Codonopsis derives from Greek roots: kódon meaning “bell” and opsis meaning “appearance,” referring to the bell‑shaped flowers characteristic of the genus. The specific epithet pilosula is a diminutive form of the Latin adjective pilosus, meaning “hairy,” and denotes the fine hairiness observed on parts of the plant, especially the stems and leaves.
Characteristics
- Morphology: A herb that can reach 30–150 cm in height. Stems are slender, erect, and lightly pubescent. Leaves are opposite, ovate to lanceolate, and often bear fine hairs on their margins.
- Flowers: Produces terminal racemes of bell‑shaped, white to pale violet flowers, each with a corolla tube approximately 1.5–2 cm long. Flowering occurs from July to August.
- Root (Tuber): The harvested part is a thickened, tuberous root resembling a small, elongated ginseng. The root contains polysaccharides, saponins, and alkaloids that are thought to contribute to its pharmacological effects.
- Ecology: Prefers well‑drained, humus‑rich soils with partial shade. The plant is hardy to mild frost and can tolerate a range of climatic conditions within its native altitude limits.
- Cultivation: Propagated by seed or division of tubers. Commercial cultivation typically involves planting seedlings in rows with a spacing of 30–45 cm, followed by regular weeding and soil moisture management. Harvest of the roots occurs in the second or third year of growth.
Related Topics
- Traditional Chinese Medicine (TCM) – C. pilosula is a principal component of many TCM formulas used to tonify the spleen and augment qi.
- Other Codonopsis species – e.g., Codonopsis tangshen, Codonopsis scrophulariiflora, which share similar morphological traits and medicinal uses.
- Campanulaceae – the botanical family that includes bellflowers, lobelias, and related genera.
- Herbal pharmacology – studies investigating the immunomodulatory, adaptogenic, and anti‑fatigue properties of C. pilosula extracts.
Note: The information presented reflects current botanical and pharmacological knowledge as of 2026 and is based on peer‑reviewed literature and reputable botanical references.