水蕴草 Egeria densa

  • Scientific Name: Egeria densa Planchon
  • Ref: Ann. Sci. Nat., Bot., sér. 3. 11: 80. 1849.
  • Synonyms: Anacharis densa (Planchon) Victorin; Elodea densa (Planchon) Caspary; Philotria densa (Planchon) Small.
  • English Common Name: Brazilian waterweed
  • Chinese Common Name: 水蕴草 shui yun cao
  • Family: Hydrocharitaceae
  • Genus: Egeria
  • Distribution: Known from a cultivated fish pond. Guangdong [native to South America].
  • Photo: 05/17/2020, Hangzhou, Zhejiang
 Stems 1-3 mm diam. Leaves whorled, recurved, 10-40 × 1.5-4.5 mm, margin minutely serrate. Male spathes 2-4-flowered, 7.5-12 mm; pedicel to 8 cm. 2n = 46.(Flora of China)


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