Chamaesyce deltoidea ssp. deltoidea
|Deltoid spurge, rockland spurge, wedge sandmat|
|(Engelman ex Chapman) Small|
The following Participating Institutions are custodians for this species in the CPC National Collection:
Fairchild Tropical Botanic Garden
The conservation of Chamaesyce deltoidea ssp. deltoidea is fully sponsored.
Jennifer Possley contributed to this Plant Profile.
Chamaesyce deltoidea ssp. deltoidea is a federally endangered, prostrate, perennial herb with wiry stems and tiny wedge-shaped leaves. It is found only in the extremely rare pine rockland ecosystem of Miami-Dade County, and occurs in mats over exposed limestone (DERM 1993, 1996). These inconspicuous plants have a disproportionately large woody taproot (Burch 1966), indicating their tendency to be long-lived and their ability to recover from fire.
Distribution & Occurrence
Chamaesyce deltoidea ssp. deltoidea can be found in pine rocklands (Renus 1979, DERM 1993, USFWS 1999). Pine rocklands once extended continuously along the south Florida limestone ridge for approximately 105 kilometers. The limestone ridge is 3-5 meters in height and consists of porous limestone known as Miami oolite. Limestone weathering creates pockets on the surface allowing plants to take root (USFWS 1985).
|There are an estimated 10,000 individuals (DERM 1993) at 18 sites; 12 of which are publicly owned.|
Conservation, Ecology & Research
Flowers April-November, peaking in July (DERM 1993)
Pollinators may include bees, flies, ants, and wasps (Ehrenfeld 1979)
Small, J.K. 1903. Flora of the Southeastern United States. New York: Published by the Author on a press of The New Era Printing Company, Lancaster, PA.