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1 January 2009 The Biological Flora of Coastal Dunes and Wetlands: Croton punctatus N. von Jacquin
Robert I. Lonard, Frank W. Judd
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Abstract

Croton punctatus N. von Jacquin is a New World tropical and subtropical dioecious, rhizomatous, subshrub or herb with apetalous flowers that is common on coastal beaches. Herein, we present a review of the biology of this important pioneer species. Large colonies of C. punctatus promote embryonic dune formation in belts parallel to the shoreline. Colonies act to intercept wind-transported sand. Colony success is related, in part, to a large seed bank and a relatively high germination potential. Other factors contributing to successful colonization include tolerance of sand scouring, salt spray deposition, burial, high substrate temperatures, and low levels of soil nutrients. Its northern distribution limits appear to be determined by the frequency, duration, and severity of freezing temperatures. Transplanted seedlings have relatively high survival rates. Therefore, C. punctatus has been useful in stabilizing sandy dredged material.

Robert I. Lonard and Frank W. Judd "The Biological Flora of Coastal Dunes and Wetlands: Croton punctatus N. von Jacquin," Journal of Coastal Research 2009(251), 23-29, (1 January 2009). https://doi.org/10.2112/07-0933.1
Received: 19 August 2007; Accepted: 10 January 2008; Published: 1 January 2009
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