Hydrilla verticillata

Read about Hydrilla verticillata in the Standard Cyclopedia of Horticulture

Hydrilla (water plant with whorled lvs.). Hydrocharitaceae. One aquatic plant of Cent. Eu., Asia and Austral., offered abroad as a water or aquarium subject. H. verticillata, Gasp. Forming large masses, leafy, submerged, dioecious: lvs. linear or oblong, serrulate or entire, 4—8in a whorl, very short ( ¼ - 1/3 in. long): sterile or male fls. solitary and short-pedicelled in a sessile spathe; sepals, petals and stamens 3: fertile or female fls. 1-2 and sessile in the spathe; sepals and petals 3; ovary extending beyond the spathe into a beak; stigmas 3: fls. very small; the male fls. detach and float. L. H. B. The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.