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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 ]
Echinodorus are by nature marsh and bog plants that can grow submersed. Many species are grown in aquariums. They prefer good light and grow best in a deep, nutrient-rich substrate. Most will grow in variable water conditions, though the majority need tropical or sub-tropical temperature ranges. Propagation is by division or by adventitious new ...
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 ).
The plant needs a deep bed of rich substrate, and plenty of light and water on the more acidic and soft side, and tropical temperatures. It will grow well emersed or submersed. Propagation is mainly by adventitious plantlets, which form on the inflorescence. A rather demanding species, it is now rarely seen. [2]
Lewisia pygmaea is a species of flowering plant in the family Montiaceae known by the common name alpine lewisia and pygmy bitterroot. It is native to western North America from Alaska and Alberta to California and New Mexico , where it grows in many types of moist, rocky mountain habitat, such as gravel beds and sandy meadows.
The Haleakalā silversword, Argyroxiphium sandwicense subsp. macrocephalum, has numerous sword-like succulent leaves covered with silver hairs. Silversword plants in general grow on volcanic cinder, a dry, rocky substrate that is subject to freezing temperatures and high winds.
Rosa bridgesii is a small rhizomatous shrub growing 10 to 80 centimetres (4 to 31 + 1 ⁄ 2 in) tall. The brown stem is covered in paired prickles. [2] The leaves are each made up of a few hairy, glandular leaflets which are oval in shape and toothed. The leaflet at the end of the leaf is up to 3 cm long and has a flat tip.
Growing in wild Fronds closeup. Nephrolepis cordifolia is an evergreen fern that grows to between 40 and 80 centimeters, in extreme cases up to 1 meter. It forms an underground rhizome in the form of several small tubers. The pinnate fronds are erect and pinnate linear to lanceolate, glandular and simple. The rachis bears bicolored chaff scales.