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Helanthium tenellum, the pygmy chain sword, is a species of plants in the Alismataceae. It is native to the eastern United States (from Texas to Florida , north to Michigan and Massachusetts ), southern Mexico ( Chiapas , Veracruz ), West Indies (Cuba, Jamaica, Hispaniola ), Central America, South America (from Guyana to Argentina) [ 1 ] [ 2 ]
Koanophyllon villosum, the Florida Keys thoroughwort, [2] or abre camino, is a species of flowering plant in the family Asteraceae. It grows in southern Florida , Cuba , the Bahamas , Hispaniola , Jamaica , and the Islas de la Bahía (part of Honduras).
Echinodorus cordifolius, the spade-leaf sword or creeping burhead, is a species of aquatic plants in the Alismatales. It is native to Mexico , the West Indies , Central America , South America (as far south as Paraguay ) and the southeastern United States ( Texas to Florida and as far north as Iowa ).
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Propagation is by division or by adventitious new plants developing on submerged flowering stems. The larger species make magnificent specimen plants for the larger aquarium, though they may form aerial leaves in good conditions. If the inflorescence forms submersed, small plantlets will form instead of flowers. If grown emersed and kept humid ...
Asclepias fascicularis is a flowering perennial herb sending up many thin, erect stems and bearing distinctive long pointed leaves which are very narrow and often whorled about the stem, giving the plant its common names. [2] [3] It blooms in clusters of lavender, pale pink, purple, white, to greenish shades of flowers. [3]
An aquatic plant with submergent leaves 40 – 60 cm long attached by petioles flatly triangular. Leaf blades are lanceolate or narrowly oval. [2] [3] There are a number of cultivated forms in the trade with various names such as "Black" or "'Parviflorus".
Flaveria linearis, known as narrowleaf yellowtops, [2] is a North American plant species of Flaveria within the family Asteraceae. It is native to Florida, Cuba, Bahamas, and the Yucatán Peninsula of Mexico. [3] [4] Flaveria linearis is a perennial herb up to 80 cm tall. Leaves are long and narrow, up to 13 cm (5 in) long.