Da xióngmāo vs Common Stonewort

Ailuropoda melanoleuca compared with Chara vulgaris

Key Differences

Da xióngmāo is Vulnerable while Common Stonewort is Endangered.

Taxonomic Classification

Rank	Da xióngmāo	Common Stonewort
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Chordata (脊索动物门)	Charophyta (轮藻门)
Class	Mammalia (哺乳動物)	Charophyceae (輪藻綱)
Order	Carnivora (食肉目)	Charales (轮藻目)
Family	Ursidae (Bears)	Characeae
Genus	Ailuropoda (Giant Pandas)	Chara
Species	Ailuropoda melanoleuca	Chara vulgaris

Conservation Status

Da xióngmāo

VU — Vulnerable

Population: ~1.9K

Trend: Increasing ↑

Common Stonewort

EN — Endangered

Physical Characteristics

Attribute	Da xióngmāo	Common Stonewort
Diet	Herbivore	—
Average Lifespan	20 years	—
Average Length	1.5 m	—
Average Weight	100.0 kg	—

Habitat & Geographic Range

Da xióngmāo

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 7 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in China. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Stonewort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (Denmark, Norway, Sweden), North America (United States), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Da xióngmāo

大熊猫（Ailuropoda melanoleuca）是中国特有的濒危动物，以其黑白相间的体色和几乎完全依赖竹子的食性而闻名于世。该物种保护状态为易危（VU），是国际野生动物保护的旗舰物种，其种群数量近年来有所回升。

Common Stonewort

Chara vulgaris, the common stonewort, is a species of charophyte green alga in the family Characeae, order Charales. It typically grows submerged in freshwater habitats including ponds, lakes, ditches, and slow-moving streams, often forming dense mats on the substrate. The species has a broad geographic distribution spanning Asia, Europe, and the Americas, tolerating a range of water conditions from clear to moderately turbid. Chara vulgaris is notable for its heavily calcified, whorled structure that gives stoneworts their characteristic encrusted appearance and makes them valuable as paleoclimate indicators in sediment records. As a primary producer, it contributes to aquatic food webs and provides habitat for invertebrates and juvenile fish. Biological traits such as individual lifespan, precise growth rates, and specific consumer relationships remain poorly documented in the literature. Despite its wide range, Chara vulgaris is assessed as Endangered by the IUCN, reflecting significant population declines attributed to freshwater pollution, eutrophication, and habitat degradation across much of its range. Targeted conservation of clean, oligotrophic water bodies is essential for its persistence.