''Limnophila'' is a genus of flowering plants in the family

Plantaginaceae Plantaginaceae, the plantain family, is a large, diverse family of flowering plants in the order Lamiales that includes common flowers such as snapdragon and foxglove. It is unrelated to the banana-like fruit also called "plantain." In older cl ...

. It is distributed in

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

and

subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Geographical z ...

regions of Africa, Asia, Australia, and the Pacific Islands.''Limnophila''.
Flora of China. Species are known commonly as marshweeds.''Limnophila''.
Integrated Taxonomic Information System (ITIS). These are annual or perennial herbs. They grow in wet habitat, such as

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...

es, and some are aquatic. Some species are glandular and aromatic. Plants of the genus vary in form, from erect to prostrate, and with branching or unbranched stems. Submerged leaves are whorled; aerial leaves are whorled or oppositely arranged. The leaves are lance-shaped or pinnate, and the blades have smooth or serrated edges. Some species have flowers solitary in the leaf axils, and others have flowers in

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s are arranged in a tubular calyx, and the corolla is tubular or funnel-shaped. The corolla has a lower lip with three lobes and an upper lip that is unlobed or double-lobed. ''

Cabomba caroliniana ''Cabomba caroliniana'' is an aquatic perennial herbaceous plant native to North and South America. It is a weed of national significance in Australia and on the list of invasive alien species of union concern in the EU. The latter implies tha ...

'', a plant in a different family, is noted for having leaves that resemble those of ''Limnophila''.

Systematics

Limnophila heterophylla - flower view 01

There are about 40 species in the genus. Species include:GRIN Species Records of ''Limnophila''.
Germplasm Resources Information Network (GRIN). *''

Limnophila aquatica ''Limnophila aquatica'', known commonly as the giant ambulia, is a plant belonging to the family Plantaginaceae. ''Limnophila aquatica'' grows naturally in Asia, Sri Lanka and India and is characterised by its fine leaves and bushy, pine-like a ...

'' *''

Limnophila aromatica ''Limnophila aromatica'', the rice paddy herb, is a tropical flowering plant in the family Plantaginaceae. It is native to Southeast Asia, where it flourishes in hot temperatures and grows most often in watery environments, particularly in floo ...

'' – swampleaf, rice paddy herb *'' Limnophila bangweolensis'' *'' Limnophila barteri'' *'' Limnophila borealis'' *'' Limnophila ceratophylloides'' *'' Limnophila chinensis'' – finger grass *'' Limnophila connata'' *'' Limnophila dasyantha'' *'' Limnophila erecta'' *'' Limnophila heterophylla'' *''

Limnophila indica Limnophila may refer to: * ''Limnophila'' (fly), a crane fly genus ** ''Limnophila'' (subgenus), a subgenus in the fly taxonomy * ''Limnophila'' (plant), an aquatic plant genus {{Genus disambiguation ...

'' – Indian marshweed *'' Limnophila repens'' *'' Limnophila rugosa'' *''

Limnophila sessiliflora ''Limnophila sessiliflora'', known as dwarf ambulia, ambulis, and Asian marshweed is a flowering plant in the family Plantaginaceae. Synonyms ''Ambulia'' ''Ambulia sessiliflora''; ''Hottonia sessiliflora''; ''Stemodia sessiliflora''; ''Terebin ...

'' – ambulia *'' Limnophila tenera''

References

Plantaginaceae Plantaginaceae genera {{Plantaginaceae-stub