Rank Species | Subfamily Asteroideae | |
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Facelis retusa (annual trampweed) is a South American species flowering plants in the sunflower family. It is native Brazil, Bolivia, Paraguay, Uruguay, northern Argentina, Chile; naturalized in parts of Africa, Australia, and North America including the southeastern and south-central United States, and considered as a noxious weed in some of those places.

Facelis retusa is an annual herb with the stems up to 30 cm (1-foot) long, very often trailing along the surface of the ground. Leaves are crowded along the stem, each up to 3 cm (1 in) long. Flower heads are in clusters, with white or purple disc flowers but no ray flowers. The achene has several long, feathery bristles that give a white appearance and assure effective seed dispersal.



References
Facelis retusa Wikipedia(Text) CC BY-SA