Eichhornia crassipes, Piaropus crassipes,
Eichhornia speciosa, Common Water Hyacinth,
Hebrew: יקינטון המים ,איכהורניה עבת-רגל, Arabic: Ward en-nil

Scientific name:  Eichhornia crassipes (Mart.) Solms
Synonym name:  Piaropus crassipes (Mart.) Solms, Eichhornia speciosa (Mart.) Solms
Common name:  Common Water Hyacinth
Hebrew name:   איכהורניה עבת-רגל, יקינטון המים
Arabic name:   Ward en-nil
Family:  Pontederiaceae, pickerelweed family, פונטדריים

Eichhornia crassipes, Common Water Hyacinth,Ward en-nil, יקינטון המים ,איכהורניה עבת-רגל

Life form:  Helophyte, a perennial herb, reproducing from stolons and by seed
Stems:  Flowering stems erect, bending over after flowering, to 25 cm, distal internode less than 4 cm
Leaves:  Alternate, entire, smooth, glabrous, glossy; petioles (leaf stems) floating, creeping, inflated, bulbous, spongy, to 25 cm long
Inflorescence:  Spikes 4–15-flowered; spike at top of erect thick stalk to 25 cm long, rising above the leaves
Flowers:  Hermaphrodite only; perianth, violet, light blue; stamens 6; ovary 3-celled
Fruits / pods:  Capsule, 3-celled, containing up to 300 seeds; seeds ribbed, formed in submerged, withered flower; fruit and seeds are rarely observed
Flowering Period:  Summer
Habitat:  Humid habitats
Distribution:  Invasive in water bodies
Chorotype:   Tropical

Israel wildflowers and native plants of Palestine

Derivation of the botanical name:
Eichhornia, named for J.A.Eichhorn (1779 - 1856), a Prussian Minister of Education in the 19th century.
crassipes, Latin crassus, thick; pes, a foot, and alludes to the swollen leaf stalk.
Pontederiaceae, named for Giulio Pontedera (1688–1757) an Italian botanist, professor of botany at Padua, and director of the botanical garden there.
Water Hyacinth refers to the plant's aquatic habitat and the similarity of the flower colour to that of the garden hyacinth.
  • The standard author abbreviation Mart. is used to indicate Carl Friedrich Philipp von Martius (1794 – 1868), a German botanist and explorer.
  • The standard author abbreviation Solms is used to indicate Hermann Maximilian Carl Ludwig Friedrich zu Solms-Laubach (1842 - 1915), a German botanist.

Flowers in Israel, Native plants