Hymenachne

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Hymenachne
Hymenachne amplexicaulis 1584.jpg
Hymenachne amplexicaulis
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Supertribe: Andropogonodae
Tribe: Paspaleae
Subtribe: Otachyriinae
Genus: Hymenachne
P.Beauv. [1] [2]
Synonyms [3]
  • Panicum sect. Hymenachnae(P.Beauv.) Hack.

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]
formerly included [9]

see Panicum Pennisetum Sacciolepis

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  1. Lithachne horizontalisChase - Minas Gerais, Rio de Janeiro, São Paulo, Mato Grosso
  2. Lithachne humilisSoderstr. - Honduras
  3. Lithachne pauciflora(Sw.) P.Beauv. - widespread from Jalisco to Paraguay
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<i>Leptochloa</i> Genus of grasses

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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. Archived 2013-09-25 at the Wayback Machine Telopea 13(1-2), 105-14.
  6. "Hymenachne amplexicaulis". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . 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)