Eichhornia crassipes, commonly known as Water Hyacinth, Lilac Devil, is an aquatic plant native to the Amazon basin, and is often considered a highly problematic invasive species outside its native range.
The roots of Eichhornia crassipes naturally absorb pollutants, including lead, mercury, and strontium-90, as well as some organic compounds believed to be carcinogenic. Water hyacinths can be cultivated for waste water treatment.
Eichhornia crassipes flowers are pale blue~purple in funnel shape and this is how it derived the common name of water hyacinth. Its leaves are round, chunky held up by bulbous stems.
Photos: SBWR, Singapore 20100508
Thalia dealbata, also known as Powdery thalia, Water canna, Powdery alligator-flag, is an aquatic plant from Mexico and several southern states of the United States. It grows to 6 ft [1.8 m], with small violet flowers on an 8 in [20 cm] panicle held above the foliage.
Thalia dealbata adds a noticeable tropical touch to landscapes, ponds, swamps, and other wet places for its tropical-looking foliage, elaborate and pretty purple flowers and low maintenance.
Photos taken in Singapore 20100306 and 20120308
Typha angustifolia also known as Cat’s-tail, Lesser Bulrush and Small Reed Mace. This large marsh herbs can not grow in the shade and requires wet soil and can grow in water.
Typha angustifolia is notable to attract wildlife, used as Pond and Bog [Wetland] Garden landscape and edible. Almost all parts of this plant are edible: flowers, leaves, pollen, root, seed and stem.
Photos: AdmPark, Singapore 20120423
KTPH, Singapore 20120308
Thalia geniculata grows in ponds, roadside ditches, swamps and the edges of lakes, dams and other water courses. Emergent aquatic plant to 3.5 m high. Native of the Americas, from the USA to Argentina, and to tropical west Africa.
KTPH, Singapore 20120215
Fire flag flowers are paired; two flowering bracts emerge on top of a tall flower stalk. Multiple small purple flowers hang on zigzag stems.
KTPH, Singapore 20120215
Pickerelweed is an aquatic plant often found blooming in Singapore ponds. Each established plant sends up a single spike of purple-pink-blue blooms that are attractive to butterflies, bees and sometimes even hummingbirds.
The flowers rather resemble those of a hyacinth and can also be white in color.
Leaves of pickerelweed are heart shaped and up to about 5 inches across. Mostly growing in shallow waters, this plant can reach heights of about 3 to 4 feet. The wide leaves of the plants provide excellent c0ver for a multitude of fish and other pond dwellers.
All photos taken @ Khoo Teck Phuat Hospital, Singapore 20120215.