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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 ...
Females grow to 4.5 cm (1.8 in), while males attain 3.5 cm (1.4 in). The male's sword is only 1-2 mm long. [5] The species was originally thought to consist only of small-sized males (all less than 29 mm long and most less than 24 mm), but in 1994 it was discovered that two populations contain large males.
Chionanthus pygmaeus is a rare species of flowering plant in the olive family known by the common name pygmy fringetree. It is endemic to Florida , where there are 46 known occurrences as of 2010. [ 5 ]
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.
Idiosepius paradoxus, also known as the northern pygmy squid, is a species of pygmy squid native to the western Pacific Ocean. This species can be found inhabiting shallow, inshore waters around central China, South Korea, and Japan.
Adults of S. m. barbouri grow to between 35.5 and 76.0 cm (14.0 and 29.9 in) in total length, which includes the tail (Klauber, 1943). In a study that involved 103 males and 80 females, the average total length was 53.5 cm (21.1 in). [ 4 ]
Idiosepiidae, also known as the pygmy squids, is a family of squids in the superorder Decapodiformes. [2] [3] They are the smallest known squids.[3]It is the only family in the monotypic order Idiosepida [4] and the monotypic superfamily Idiosepioidea. [5]