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Rice Weed Management

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Perennial Grasses Infesting Louisiana's Rice

This publication includes keys to identification of water paspalum, brook paspalum, knotgrass and perennial barnyardgrass. (PDF Format Only)

Hedge Hyssop (Gratiola sp.)

Photographs of Hedge Hyssop plants.

Texasweed (Caperonia palustris)

Photographs of Texasweed a.k.a. Mexicanweed, Birdeye

Alligatorweed (Alternanthera philoxeroides)

Photographs of alligatorweed and its parts.

Jointvetch (Aeschynomene sp.)

Photographs of Jointvetch (Aeschynomene sp.) and its parts.

Mannagrass (Glyceria declinata)

Photographs of mannagrass (Glyeria declinata) and some of its parts.

Eclipta syn. Yerba de Tago (Eclipta prostrata)

Eclipta is a member of the Sunflower family, Asteraceae. Its flowers are numerous in a tight head.

Red Ludwigia syn. Waterpurslane (Ludwigia repens syn. Isnardia repens)

Photogaphs of red ludwigia or waterpurslane.

Parts Of Grass Spikelet

A photograph of a labeled grass spikelet. By definition a grass spikelet is the unit of the inflorscence of a grass, a member of the Poaceae or Gramineae family of plants. It consists of two glumes and one or more florets.

Pickerelweed (Pontederia cordata)

Photographs of pickerelweed and its parts.

Red Rice (Oryza sativa)

Photographs of red rice (Oryza sativa) and its various forms.

Water Starwort (Callitriche heterophylla)

Photographs of water starwort (Callitriche heterophylla).

Arrowhead, Duck-Potato (Sagittaria sp.)

Photographs of arrowhead or duck-potato (Sagittaria sp.)

Brook Paspalum syn. Canoegrass(Paspalum acuminatum)

Photographs of brook paspalum and its distinguishing features.

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