Monocotyledon | Literature for Eichhornia crassipes
Lorence & Wagner, 2020. |
Pontederiaceae -- The Pickerel Weed Family | Bibliography |
Eichhornia crassipes | |
General Information | ||
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Distribution | Native to the Neotropics, widely naturalized and a troublesome weed that interferes with navigation in some areas.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Lana`i, Maui, Hawai`i. |
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Habit |
Perennial aquatic herb. |
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Leaves |
Leaves in a basal rosette, blade leathery, ovate to orbicular, usually 3.5‒16 cm long, 4‒14 cm wide, petiole usually 7‒30 cm long, inflated near base. |
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Flowers |
Inflorescences a scape, 1‒4 dm long, with a conspicuous sheath near middle. Flowers numerous, perianth violet, tube curved, 1.5‒2 cm long, lobes
obovate to elliptic, 3.5‒4 cm long, upper lobe enlarged and with a patch of blue with a yellow center. |
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Fruit |
Seeds oblong-cylindrical, ribbed, ca. 1.5 mm long, 0.6–0.7 mm wide. |
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Chromosomes |
2n = 30, 32, 58. |
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Contributor |
Nancy Khan |