Hymenachne amplexicaulis is occasionally found growing in wet pastures from the central peninsula to Collier county. It is native to the West Indies and blooms. hymenachne, west indian marsh grass, water straw grass, trompetilla or trumpet grass, canutillo (Colombia); dal (dhal) grass, bamboo grass (India); carrizo chico . Hymenachne (Hymenachne amplexicaulis) is an invasive plant in Queensland. Hymenachne is a restricted plant under Queensland legislation.

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Annals of the Entomological Society of America, 3: Leaf-blade margins scabrous; tuberculate-ciliate; basal margins long-ciliate. Datasheet Hymenachne amplexicaulis hymenachne.

Grows well on fertile, seasonally inundated clays, although distribution is determined more by availability of water than by soil texture. Native to or naturalised in: Olive hymenachne Hymenachne amplexicaulis Rudge Nees strategic plan Since the mids this species has spread to headwater marshes of the St.

Panicle densely flowered; cylindrical; cm long; cm wide.

On seasonally flooded floodplains, it needs over 1 m of water during the wet season to persist. National Germplasm Resources Laboratory.

Fact sheet – Hymenachne amplexicaulis

Both grow in shallow hhymenachne and open riparian habitats. Classification and ordination of plant formations in the Pantanal of Brazil. Amplesicaulis Heritage Trust, Eradication is not emphasized here as its attainment is unlikely. Hymenachne amplexicaulis new for Louisiana. Diagnostic features of the genus include its aquatic habit and lower internodes filled with spongy aerenchyma, the cylindrical inflorescence, the margins of the upper lemma being flat, and the glumes not saccate Webster, In Mexico, and perhaps the Caribbean, H.


Museum of Natural History. Azuche, Hymenachne amplexicaulis Rudge Nees, forage genetic resources for floodplains in tropical Mexico.

Johns Marsh and Reedy Creek Swamp — both expansive open marsh in distinct drainage systems. Southward in Victoria, South Australia and Tasmania, its importation, sale, distribution, and hymenacne as a contaminant in freely moving commodities is prohibited Australian Government, Dept.

London and New York. The leaves consist of a hairless i. However, these two species can be distinguished by the following differences:. The Australian Government, Dept. Identification and biology hymenaxhne non-native plants in Florida’s natural areas, 2nd edition. Retrieved 21 January Creeping, sprawling and heavily branched populations root in the substrate, with lower culms decumbent and submersed and upper stems erect and emergent.

Center for Aquatic and Invasive Plants

It has low amplexicaupis tolerance, not spreading beyond the wet zone, and low salt tolerance, not surviving even occasional tidal impact. Culms decumbent, few branched; robust; cm long; 1 cm thick; spongy; rooting from lower nodes.


Care should also be taken that large quantities of dead plant material from sprayed hymenachne do not contaminate bodies of water. They may be known commonly as marsh grasses. Host specificity of Ischnodemus variegatus, an herbivore of West Indian marsh grass Hymenachne amplexicaulis. In permanent wetlands the species will persist if water levels do not exceed 1. International Common Names English: Kibbler H; Bahnisch LM, University of California Press.


Australian Government; Deptof the Environment, Grasses of North-Eastern India. The species has shown to be valuable to cattle production in ponded pasture systems in Queensland and on alluvial flood plains of Northern Territory, Australia. In agricultural and urbanized areas it amplexicwulis colonize flooded fields of rice and sugar cane and the ditches, canals, and dams that serve it.

Hymenaxhne Top of page A tetrazolium staining technique had been presented for viability determination in seed of H. Australian Journal of Experimental Agriculture, 39 4: Where the leaf blade meets the leaf sheath there is a small membranous flap i.