Egeria (plant) particularly in Europe, fast-growing, adaptable plants such as "Egeria" can spread quickly and cause major damage to native plants and wildlife. Egeria (plant) Egeria is a genus of three species of aquatic plants in the family Hydrocharitaceae described as a genus in 1849. native to warm-temperate South America. The genus was formerly included in the related genus "Elodea", from which it differs in having the leaves in whorls of four or more, not three, and in having more conspicuous flowers with larger (particularly broader) petals. "Egeria" is found in many temperate and subtropical regions throughout the world as an introduced,
Adonis (plant) Adonis (plant) Adonis is a genus of about 20–30 species of flowering plants of the crowfoot family, Ranunculaceae, native to Europe and Asia. The species grow to in height, with feathery, finely divided leaves. Their flowers are red, yellow or orange and have 5–30 petals. The Autumn Adonis, pheasant's-eye ("A. annua"), has flowers with bright red petals. The generic name "Adonis" refers to the mythic character Adonis, a lover of the goddess Aphrodite or Venus. According to the "Metamorphoses" of Ovid the anemone, also of the family "Ranunculaceae", was created when Venus sprinkled nectar on his blood. They are cultivated