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hydrocleys

Scientific Name: Hydrocleys

Family: Limnocharitaceae

Category: Monocot

Growth:

Duration:

Other Names:

       

Hydrocleys nymphoides - Water Poppy

Hydrocleys nymphoides, commonly known as water poppy, is a charming aquatic plant prized for its delicate yellow flowers and lily-pad-like foliage. It is often used as an ornamental plant in ponds and water gardens.

Considerations for Pets

  • The plant floats on the water's surface.
  • It has leaves that are "lily-pad-like."

Taxonomy and Nomenclature

  • Scientific Name: Hydrocleys nymphoides (Willd.) Buchenau
  • Common Names: Water Poppy, Waterpoppy
  • Family: Alismataceae (formerly placed in Limnocharitaceae)
  • Genus: Hydrocleys
  • Synonyms: Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buchenau
  • Taxonomic Serial Number: 503099

Distribution and Habitat

  • Native to the Western Hemisphere, particularly South America and Central America.
  • Naturalized in some other regions and sold as an ornamental.
  • In the St. Louis area, can be grown in greenhouses or outdoors during the growing season with indoor overwintering.

Morphological Characteristics

  • Aquatic perennial with heart-shaped leaves.
  • Leaves are thick, broad, and rounded at the base.
  • Yellow, poppy-like blooms (1-2 inches) float on the surface.
  • Dark green "lily-pad-like" pads (1-2 inches).
  • Stems are prostrate and root at the nodes.
  • Leaves have long petioles, usually floating, glabrous above, sparsely hairy beneath, broadly ovate base.

Ecological Role

  • Considered a potential weed in Australia, although not currently a documented problem.

Genetic Information

  • A new karyotype, with 2n = 14 chromosomes, has been described in Hydrocleys.
  • Hydrocleys nymphoides maturase K.
  • Hydrocleys nymphoides voucher Les s.n. (CONN) tRNA-Lys (trnK) gene, partial sequence and maturase K (matK) gene, complete cds chloroplast 2,427 bp

Cultivation

  • Grows well in full sun to partial shade.
  • Hardy in USDA Zones 7-11.
  • Prefers shallow water but can survive in water up to 12-15 inches deep.

Quirky Facts

  • The genus name, Hydrocleys, is derived from the Greek words "hydro" (water) and "clavis" (club-shaped), presumably referencing the plant's morphology.
  • A cultivar called 'Venezuelan' is known for having larger leaves and flowers.

Further Information

  • USGS Nonindigenous Aquatic Species Database.
  • NOAA Great Lakes Aquatic.