marsh dayflower: Murdannia keisak (Commelinales: Commelinaceae)

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marsh dayflower	USDA PLANTS Symbol: MUKE USDA ARS GRIN: 403095 ITIS: 39145
Murdannia keisak (Hassk.) Hand.-Maz.
Taxonomic Rank: Liliopsida: Commelinales: Commelinaceae
States Listed: Washington,
Synonym(s): marsh dewflower, aneilima, Asian spiderwort, wartremoving herb, marsh dayflower
Marsh dewflower (wart-removing-herb) is an annual, emergent plant that invades wetlands in the southeastern and northwestern United States. Plant stems are succulent, form roots at the nodes, and grow prostrate along the ground. Stems are 12-30 in. (30.5-76.2 cm) long. Leaves are alternate, lance-shaped, and up to 3 in. (7.6 cm) long. In September to November small, pink, 3-petaled flowers occur singly or in small clusters at the apex of the stems and in the leaf axils. Marsh dewflower invades water edges and marshes and often grows immersed. It forms dense mats that out-compete native vegetation. Marsh dewflower is native to eastern Asia and was accidentally introduced into the United States, in South Carolina, around 1935.

Identification, Biology, Control and Management Resources

Plant Invaders of Mid-Atlantic Natural Areas - National Park Service and U.S. Fish and Wildlife Service
Invasive Alien Plant Species of Virginia - Virginia DCR and Virginia Native Plant Society

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Developed by The University of Georgia - Center for Invasive Species and Ecosystem Health.
Last updated on Thursday, February 14, 2013 at 02:47 PM