Hymenachne

marsh grasses
Hymenachne amplexicaulis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Genus: Hymenachne
Synonyms[3]

Panicum sect. Hymenachnae (P.Beauv.) Hack.

Hymenachne is a genus of widespread wetlands plants in the grass family. They may be known commonly 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 amplexicaulis

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]
  1. Hymenachne amplexicaulis – West Indian marsh grass, olive hymenachne - West Indies; Latin America from Mexico to Uruguay; naturalized in Australia, parts of Asia, Florida
  2. Hymenachne assamica - China, Assam, Myanmar, Thailand
  3. Hymenachne donacifolia - Cuba, Puerto Rico, Trinidad; Latin America from Honduras to Paraguay
  4. Hymenachne grumosa - Paraguay, Uruguay, Brazil, Argentina
  5. Hymenachne patens - China (Anhui, Fujian, Jiangxi)
  6. Hymenachne pernambucense - Paraguay, Uruguay, Brazil, Argentina
  7. Hymenachne wombaliensis - Zaïre
formerly included[9]

see Panicum Pennisetum Sacciolepis

  • Hymenachne aurita - Panicum auritum
  • Hymenachne boiviniana - Panicum boivinianum
  • Hymenachne campestris - Sacciolepis vilvoides
  • Hymenachne condensata - Panicum condensatum
  • Hymenachne fluviatilis - Sacciolepis vilvoides
  • Hymenachne frondescens - Panicum stoloniferum
  • Hymenachne indica - Sacciolepis indica
  • Hymenachne insulicola - Panicum auritum
  • Hymenachne interrupta - Sacciolepis interrupta
  • Hymenachne leptostachya - Panicum pulchellum
  • Hymenachne montana - Pennisetum montanum
  • Hymenachne myosuroides - Sacciolepis myosuroides
  • Hymenachne myosurus - Sacciolepis myuros
  • Hymenachne myuros - Sacciolepis myuros
  • Hymenachne phalarioides - Sacciolepis indica
  • Hymenachne phleiformis - Sacciolepis myuros
  • Hymenachne polymorpha - Panicum auritum
  • Hymenachne striata - Sacciolepis striata

References

  1. ↑ Palisot de Beauvois, Ambroise Marie François Joseph. 1812. Essai d'une Nouvelle Agrostographie pages 48-49 in Latin
  2. ↑ 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
  3. ↑ Tropicos, Hymenachne P. Beauv.
  4. ↑ Hymenachne. Integrated Taxonomic Information System (ITIS).
  5. ↑ 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. Telopea 13(1-2), 105-14.
  6. ↑ "Hymenachne amplexicaulis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 21 January 2018.
  7. 1 2 3 Hymenachne. Flora of China.
  8. ↑ Hymenachne. Grassbase - The World Online Grass Flora.
  9. 1 2 Kew World Checklist of Selected Plant Families
  10. ↑ GRIN Species Records of Hymenachne. Germplasm Resources Information Network (GRIN)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.