From Wikipedia, the free encyclopedia
Genus of grasses
Hymenachne is a
genus of widespread
wetlands plants that is in the
grass family . They are commonly known as marsh grasses .
[4] They are distributed in
tropical and
subtropical regions of Asia, the Americas, and the
Pacific Islands .
[5] A species from the Americas, H. amplexicaulis , is well known in other parts of the world as an
introduced and
invasive species .
[6]
Hymenachne is similar to genus
Sacciolepis . Both were formerly considered part of
Panicum .
[7]
Hymenachne
aquatic plants frequently found in marshes and other wet habitats. Their stems are spongy with
aerenchyma tissue.
[7] The longest stems can reach 4 meters. They are perennial, sometimes with
rhizomes . The leaves are linear or lance-shaped.
[8] The
inflorescence is usually a
cylindrical , spike-shaped
panicle , rarely with branches.
[7]
Diversity
Accepted species
[9]
[10]
Hymenachne amplexicaulis – West Indian marsh grass, olive hymenachne -
West Indies ;
Latin America from
Mexico to
Uruguay ; naturalized in
Australia , parts of
Asia ,
Florida
Hymenachne assamica -
China ,
Assam ,
Myanmar ,
Thailand
Hymenachne donacifolia -
Cuba ,
Puerto Rico ,
Trinidad ;
Latin America from
Honduras to
Paraguay
Hymenachne grumosa -
Paraguay ,
Uruguay ,
Brazil ,
Argentina
Hymenachne patens -
China (
Anhui ,
Fujian ,
Jiangxi )
Hymenachne pernambucense -
Paraguay ,
Uruguay ,
Brazil ,
Argentina
Hymenachne wombaliensis -
Zaïre
formerly included
[9]
see
Panicum
Pennisetum
Sacciolepis
References
^
Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie pages 48-49 in Latin
^
Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie plate X (10), figure VIII (8 a-h) at upper right ; line drawings of Hymenachne sp.;
figure captions on caption page 8
^
Tropicos, Hymenachne P. Beauv.
^
Hymenachne . Integrated Taxonomic Information System (ITIS).
^ Clarkson, J. R., et al. (2011).
A report of hybridisation in Hymenachne (Poaceae, Panicoideae) with description of Hymenachne × calamitosa , a new species of hybrid origin from tropical Australia.
Archived 2013-09-25 at the
Wayback Machine Telopea 13(1-2), 105-14.
^
"Hymenachne amplexicaulis " .
Germplasm Resources Information Network .
Agricultural Research Service ,
United States Department of Agriculture . Retrieved 21 January 2018 .
^
a
b
c
Hymenachne . Flora of China.
^
Hymenachne . Grassbase - The World Online Grass Flora.
^
a
b
Kew World Checklist of Selected Plant Families
^
GRIN Species Records of Hymenachne . Germplasm Resources Information Network (GRIN)