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Big and Little George Hammocks
County: Miami-Dade County
Size: 18.21 acres
Notes: For a Google map of Big George Hammock click here. Historically, Big George Hammock was named White Lightning Hammock. Little George Hammock was named Little George Gann Hammock in the late 1970s by George Avery. Both hammocks were later combined into a single conservation area and re-named Big and Little George Hammocks.
Managing Agency: Miami-Dade County

There are 224 taxa reported for
Big and Little George Hammocks

Group By Family:

Scientific Name: Occurrence: Native Status: Introduced Status: Invasive Status: Cultivated Status: Reference: Voucher:
Abildgaardia ovata Present Native Not Introduced Native 51629
Abrus precatorius Present Not Native, Naturalized Introduced Invasive 51626
Acalypha alopecuroidea Present Not Native, Naturalized Introduced Ruderal 50213
Adiantum anceps Present Not Native, Naturalized Introduced Invasive 52254
Aeschynomene americana Present Native Not Introduced Native 50213
Ageratum conyzoides subsp. conyzoides Present Not Native, Naturalized Introduced Ruderal 50214
Alpinia zerumbet Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50214
Amaranthus spinosus Present Not Native, Naturalized Introduced Ruderal 50213
Ambrosia artemisiifolia Present Native Not Introduced Native 51457
Ampelopsis arborea Present Native Not Introduced Native 51457
Anemia adiantifolia Present Native Not Introduced Native 51457
Annona glabra Present Native Not Introduced Native 14915
Ardisia escallonioides Present Native Not Introduced Native 51457
Argemone mexicana Present Native Not Introduced Ruderal 51629
Asclepias curassavica Present Not Native, Naturalized Introduced Ruderal 51457
Asparagus aethiopicus Present Not Native, Naturalized Introduced Invasive 51457
Bauhinia variegata var. variegata Present Not Native, Naturalized Introduced Invasive 51457
Bidens alba var. radiata Present Native Not Introduced Ruderal 51457
Bischofia javanica Present Not Native, Naturalized Introduced Invasive 51629
Blechnum serrulatum Present Native Not Introduced Native 51457
Boehmeria cylindrica Present Native Not Introduced Native 51457
Brugmansia suaveolens Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50213
Bursera simaruba Present Native Not Introduced Native 51457
Callicarpa americana Present Native Not Introduced Native 51457
Callisia fragrans Present Not Native, Naturalized Introduced Invasive 50213
Campyloneurum phyllitidis Present Native Not Introduced Native 50214
Capraria biflora Present Native Not Introduced Ruderal 51456
Cardamine pensylvanica Present Native Not Introduced Ruderal 50214
Carica papaya Present Native Not Introduced Native 14915
Carica papaya Present Native Not Introduced Native 51457
Caryota mitis Present Not Native, Naturalized Introduced Potentially Invasive 50213
Celtis laevigata Present Native Not Introduced Native 51456
Cenchrus echinatus Present Native Not Introduced Ruderal 51456
Cephalanthus occidentalis Present Native Not Introduced Native 14915
Cestrum diurnum Present Not Native, Naturalized Introduced Invasive 50213
Chiococca alba Present Native Not Introduced Native 51457
Chiococca parvifolia Present Native Not Introduced Native 51626
Chromolaena odorata Present Native Not Introduced Native 51457
Chrysobalanus icaco Present Native Not Introduced Native 51456
Cissus verticillata Present Native Not Introduced Native 51457
Citrus x paradisi Present Not Native, Naturalized Introduced Potentially Invasive 50214
Clerodendrum speciosissimum Present Not Native, Naturalized Introduced Potentially Invasive 50214
Coccoloba diversifolia Present Native Not Introduced Native 51457
Commelina diffusa var. diffusa Present Not Native, Naturalized Introduced Potentially Invasive 51629
Conyza canadensis Present Native Not Introduced Ruderal 51456
Crinum americanum Present Native Not Introduced Native 50213
Crotalaria pallida var. obovata Present Not Native, Naturalized Introduced Ruderal 50213
Cyanthillium cinereum Present Not Native, Naturalized Introduced Ruderal 51456
Cyclopogon elatus Possibly Extirpated Possibly Extirpated Not Introduced Native 16988 2342
Cyclospermum leptophyllum Present Not Native, Naturalized Introduced Ruderal 50213
Cynodon dactylon var. dactylon Present Not Native, Naturalized Introduced Potentially Invasive 51456
Cyperus croceus Present Native Not Introduced Ruderal 50213
Cyperus esculentus Present Not Native, Naturalized Introduced Ruderal 50214
Cyperus surinamensis Present Native Not Introduced Native 50213
Dactyloctenium aegyptium Present Not Native, Naturalized Introduced Potentially Invasive 50214
Delonix regia Present Not Native, Naturalized Introduced Invasive 51629
Desmodium incanum Present Native Not Introduced Native 50213
Dichanthelium commutatum Present Native Not Introduced Native 51457
Digitaria ciliaris Present Native Not Introduced Native 51456
Diospyros virginiana Present Native Not Introduced Native 50214
Dracaena marginata Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50214
Drymaria cordata Present Native Not Introduced Ruderal 501456
Eleusine indica Present Not Native, Naturalized Introduced Ruderal 51456
Emilia fosbergii Present Not Native, Naturalized Introduced Ruderal 51629
Emilia sonchifolia Present Not Native, Naturalized Introduced Ruderal 51629
Encyclia tampensis Present Native Not Introduced Native 51457
Epidendrum anceps Present Native Not Introduced Native 50222
Epidendrum floridense Present Native Not Introduced Native 50222
Eragrostis amabilis Present Not Native, Naturalized Introduced Ruderal 50213
Erechtites hieraciifolius Present Native Not Introduced Native 50214
Erythrina herbacea Present Native Not Introduced Native 51629
Eugenia axillaris Present Native Not Introduced Native 51457
Eugenia uniflora Present Not Native, Naturalized Introduced Invasive 51626
Eupatorium capillifolium Present Native Not Introduced Native 51457
Euphorbia blodgettii Present Native Not Introduced Ruderal 50214
Euphorbia cyathophora Present Native Not Introduced Native 51570
Euphorbia graminea Present Not Native, Naturalized Introduced Invasive 51457
Euphorbia heterophylla Present Native Not Introduced Ruderal 51456
Euphorbia hirta Present Native Not Introduced Ruderal 51456
Euphorbia hypericifolia Present Native Not Introduced Ruderal 50214
Euphorbia hyssopifolia Present Native Not Introduced Ruderal 50214
Euphorbia lasiocarpa Present Not Native, Naturalized Introduced Ruderal 51456
Exothea paniculata Present Native Not Introduced Native 51457
Ficus aurea Present Native Not Introduced Native 51457
Ficus citrifolia Present Native Not Introduced Native 51457
Ficus microcarpa Present Not Native, Naturalized Introduced Invasive 51457
Funastrum clausum Present Native Not Introduced Ruderal 50214
Habenaria floribunda Present Native Not Introduced Native 50214
Hamelia patens var. patens Present Native Not Introduced Native 51457
Hymenocallis palmeri Present Native Not Introduced Native 51626
Ilex cassine Present Native Not Introduced Native 50214
Indigofera spicata Present Not Native, Naturalized Introduced Ruderal 51457
Ipomoea alba Present Native Not Introduced Native 51457
Ipomoea hederifolia Present Native Not Introduced Ruderal 50213
Ipomoea triloba Present Not Native, Naturalized Introduced Potentially Invasive 50213
Jasminum dichotomum Present Not Native, Naturalized Introduced Invasive 51626
Jasminum fluminense Present Not Native, Naturalized Introduced #PlantsByConsArea("InvasiveStatus")# 51456
Kyllinga brevifolia Present Not Native, Naturalized Introduced Ruderal 50213
Lantana camara Present Not Native, Naturalized Introduced Invasive 51457
Lepidium virginicum Present Native Not Introduced Ruderal 51629
Leucaena leucocephala Present Not Native, Naturalized Introduced Invasive 51570
Liriope muscari Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50213
Macroptilium lathyroides Present Not Native, Naturalized Introduced Ruderal 51457
Malvastrum corchorifolium Present Native Not Introduced Ruderal 51629
Mangifera indica Present Not Native, Naturalized Introduced Invasive 51456
Mecardonia procumbens Present Native Not Introduced Ruderal 50213
Medicago lupulina Present Not Native, Naturalized Introduced Ruderal 51456
Melinis repens Present Not Native, Naturalized Introduced Invasive 51456
Melothria pendula Present Native Introduced Native 51456
Mikania cordifolia Present Native Not Introduced Native 51457
Mikania scandens Present Native Not Introduced Native 51629
Momordica charantia Present Not Native, Naturalized Introduced Invasive 51457
Morinda royoc Present Native Not Introduced Native 51457
Morus rubra Present Native Not Introduced Native 51457
Musa x paradisiaca Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50213
Myrica cerifera Present Native Not Introduced Native 51456
Myrsine cubana Present Native Not Introduced Native 51457
Nama jamaicensis Present Native Not Introduced Native 51629
Nectandra coriacea Present Native Not Introduced Native 51457
Nephrolepis biserrata Present Native Not Introduced Native 51457
Nephrolepis cordifolia Present Not Native, Naturalized Introduced Invasive 51457
Nephrolepis exaltata Present Native Not Introduced Native 51457
Nephrolepis falcata forma furcans Present Not Native, Naturalized Introduced Potentially Invasive 50214
Oeceoclades maculata Present Not Native, Naturalized Introduced Invasive 51457
Opuntia cochenillifera Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50214
Oxalis corniculata Present Native Not Introduced Ruderal 50214
Panicum maximum Present Not Native, Naturalized Introduced Invasive 51629
Parietaria floridana Present Native Not Introduced Native 50213
Parthenocissus quinquefolia Present Native Not Introduced Native 51457
Paspalum conjugatum Present Native Not Introduced Ruderal 50213
Paspalum fimbriatum Present Not Native, Naturalized Introduced Ruderal 51456
Passiflora suberosa Present Native Not Introduced Native 51457
Pennisetum purpureum Present Not Native, Naturalized Introduced Invasive 50214
Persea borbonia var. borbonia Recorded as Present in Error 14915
Persea palustris Present Native Not Introduced Native 51457
Phlebodium aureum Present Native Not Introduced Native 51457
Phyla nodiflora Present Native Not Introduced Ruderal 51456
Phyllanthus amarus Present Not Native, Naturalized Introduced Ruderal 50214
Phyllanthus tenellus Present Not Native, Naturalized Introduced Ruderal 51457
Phymatosorus grossus Present Not Native, Naturalized Introduced Invasive 52255
Physalis angulata Present Native Not Introduced Native 50213
Phytolacca americana Present Native Not Introduced Native 51456
Pilea microphylla Present Native Not Introduced Native 51457
Pisonia aculeata Present Native Not Introduced Native 51457
Pleopeltis polypodioides var. michauxiana Present Native Not Introduced Native 51457
Pluchea carolinensis Present Native Not Introduced Native 51456
Prosthechea cochleata Present Native Not Introduced Native 50222
Psidium guajava Present Not Native, Naturalized Introduced Invasive 50217
Psilotum nudum Present Native Not Introduced Native 51457
Psychotria nervosa Present Native Not Introduced Native 51457
Psychotria tenuifolia Present Native Not Introduced Native 51457
Pteridium caudatum Present Native Not Introduced Native 51457
Pteris bahamensis Present Native Not Introduced Native 51457
Pteris vittata Present Not Native, Naturalized Introduced Invasive 51456
Ptychosperma elegans Present Not Native, Naturalized Introduced Invasive 51457
Quercus pumila Present Native Not Introduced Native 51457
Quercus virginiana Present Native Not Introduced Native 51457
Randia aculeata Present Native Not Introduced Native 51457
Rhus copallinum Present Native Not Introduced Native 51457
Rhynchosia minima Present Native Not Introduced Ruderal 50213
Ricinus communis Present Native Introduced Invasive 51457
Rivina humilis Present Native Not Introduced Native 51456
Rottboellia cochinchinensis Present Not Native, Naturalized Introduced Ruderal 50214
Roystonea regia Present Native Not Introduced Native 51626
Ruellia blechum Present Not Native, Naturalized Introduced Invasive 50214
Sabal palmetto Present Native Not Introduced Native 51457
Sacoila lanceolata var. paludicola Possibly Extirpated Possibly Extirpated Not Introduced Native 51197
Sambucus nigra subsp. canadensis Present Native Not Introduced Native 51629
Schefflera actinophylla Present Not Native, Naturalized Introduced Invasive 51457
Schinus terebinthifolius Present Not Native, Naturalized Introduced Invasive 51457
Senna ligustrina Present Native Not Introduced Native 51457
Senna obtusifolia Present Native Not Introduced Ruderal 51629
Senna pendula var. glabrata Present Not Native, Naturalized Introduced Invasive 51456
Serenoa repens Present Native Not Introduced Native 51457
Setaria parviflora Present Native Not Introduced Ruderal 51456
Setaria pumila Present Not Native, Naturalized Introduced Ruderal 50213
Sida acuta Present Native Not Introduced Ruderal 51629
Sida rhombifolia Present Native Not Introduced Ruderal 51629
Sideroxylon foetidissimum Present Native Not Introduced Native 51457
Sideroxylon salicifolium Present Native Not Introduced Native 51457
Simarouba glauca Present Native Not Introduced Native 51457
Smilax auriculata Present Native Not Introduced Native 51457
Smilax bona-nox Present Native Not Introduced Native 51457
Solanum americanum Present Native Not Introduced Ruderal 51457
Sonchus asper Present Not Native, Naturalized Introduced Ruderal 51570
Sorghum arundinaceum Present Not Native, Naturalized Introduced Ruderal 51456
Sorghum bicolor Present Not Native, Naturalized Introduced Ruderal 50213
Spathodea campanulata Present Not Native, Naturalized Introduced Invasive 50213
Spermacoce remota Present Native Not Introduced Native 50214
Spermacoce verticillata Present Not Native, Naturalized Introduced Ruderal 51457
Spigelia anthelmia Present Native Not Introduced Ruderal 50213
Sporobolus pyramidalis Present Not Native, Naturalized Introduced Ruderal 51456
Stenandrium dulce Present Native Not Introduced Ruderal 50213
Stenotaphrum secundatum Present Not Native, Naturalized Introduced Invasive 50214
Swietenia mahagoni Present Not Native, Naturalized Introduced Invasive 51457
Tectaria fimbriata Present Native Not Introduced Native 51456
Tectaria heracleifolia Present Native Not Introduced Native 51456
Tectaria incisa Present Not Native, Naturalized Introduced Invasive 50213
Tetrazygia bicolor Present Native Not Introduced Native 50213
Thelypteris augescens Present Native Not Introduced Native 51457
Thelypteris dentata Present Not Native, Naturalized Introduced Invasive 50214
Thelypteris interrupta Present Native Not Introduced Native 50214
Thelypteris kunthii Present Native Not Introduced Native 51457
Thelypteris reptans var. reptans Present Native Not Introduced Native 51629
Tillandsia fasciculata var. densispica Present Native Not Introduced Native 51456
Tillandsia recurvata Present Native Not Introduced Native 50214
Tillandsia setacea Present Native Not Introduced Native 51457
Tillandsia usneoides Present Native Not Introduced Native 14915
Tillandsia variabilis Present Native Not Introduced Native 50214
Toxicodendron radicans Present Native Not Introduced Native 51457
Tradescantia spathacea Present Not Native, Naturalized Introduced Invasive 51456
Trema micrantha Present Native Not Introduced Native 51457
Tridax procumbens Present Not Native, Naturalized Introduced Ruderal 50214
Turnera ulmifolia Present Not Native, Naturalized Introduced Ruderal 50214
Urochloa distachya Present Not Native, Naturalized Introduced Ruderal 50213
Vigna luteola Present Native Not Introduced Native 51456
Vitis cinerea var. floridana Present Native Not Introduced Native 51457
Vitis rotundifolia Present Native Not Introduced Native 51457
Waltheria indica Present Native Not Introduced Ruderal 50213
Xanthosoma sagittifolium Present Not Native, Naturalized Introduced Invasive 50214
Youngia japonica Present Not Native, Naturalized Introduced Invasive 14915
Youngia japonica Present Not Native, Naturalized Introduced Invasive 51457
Yucca gigantea Present Not Native, Cultivated Only Introduced Not Invasive Cultivated 50214
Zamia integrifolia Present Native Not Introduced Native 14915


References for Big and Little George Hammocks:
Avery, G.N. 1979. Revised plant list, Little George Gann Hammock, George N. Avery, 15 March 1979, with George Gann, Roger Hammer, and Greg Webster. In files of The Institute for Regional Conservation, Miami, FL. Link to plant list.
Avery, G.N. 1983. Botanical notes of George Avery, south Florida botanist 1922-1983. Fairchild Tropical Garden Archives. Null observation of Spiranthes elata at White Lightning Hammock, 15 March 1979. With G.D. Gann, R. Hammer and G. Webster.
Avery, G.N. 1983. Botanical notes of George Avery, south Florida botanist 1922-1983. Fairchild Tropical Garden Archives. Observation of Spiranthes elata at White Lightning Hammock, 17 March 1979. Associated with Avery 2087 FTG.
Avery, G.N. 1983. Botanical notes of George Avery, south Florida botanist 1922-1983. Fairchild Tropical Garden Archives. Record of phone consversation with R. Hammer about a sighting of Spiranthes elata by G.D. Gann in White Lightning Hammock, March, 1980.
Avery, G.N.1983. Botanical notes of George Avery, south Florida botanist 1922-1983. Fairchild Tropical Garden Archives. Observation of Spiranthes elata at White Lightning Hammock, 18 October 1978. With G.D. Gann.
Bradley, K.A. 2006. Observations of vascular plants at Big George Hammock, Miami-Dade County, Florida. 23 March, 2006. The Institute for Regional Conservation, Miami, FL.
Bradley, K.A., and E. Fleites. 2005. Observations of vascular plants at Big George Hammock, Miami-Dade County, Florida. 12 July 2005. The Institute for Regional Conservation. Miami, FL.
Bradley, K.A., and E. Fleites. 2005. Observations of vascular plants at Little George Hammock, Miami-Dade County, Florida. 12 July 2005. The Institute for Regional Conservation. Miami, FL.
Bradley, K.A., and M.E. Abdo. 2003. Observations of vascular plants at Natural Forest Community # H-683, Little George Hammock, Miami-Dade County. 25 November 2003. The Institute for Regional Conservation, Miami, FL.
Fleites, E. 2005. Observations of vascular plants at Big George Hammock, Miami-Dade County, Florida. 12 April 2006. The Institute for Regional Conservation. Miami, FL.
Fleites, E. 2006. Observations of Vascular Plants at Little George Hammock, Miami-Dade County, Florida. 12 April, 2006. The Institute for Regional Conservation, Miami, FL.
Gann, G.D. 2001. A brief history of Big and Little George Hammocks. Tillandsia (November): 3-4.
Gann, G.D. Sr. 1960-1980. Personal observations of vascular plants at Big George Hammock. 1960-1980. The Institute for Regional Conservation. Miami, FL.
Green, S.E. 2006. Observations of vascular plants at Big George Hammock, Miami-Dade County. 31 August, 2006. The Institute for Regional Conservation, Miami FL.
Green, S.E. 2006. Observations of vascular plants at Little George Hammock, Miami-Dade County. 31 August, 2006. The Institute for Regional Conservation, Miami FL.


Vouchers for Big and Little George Hammocks:
Avery 2087, FTG
Possley, J. 151. FTG. Voucher of Adiantum anceps at Big and Little George Hammock in Miami-Dade County, FL, USA. 20 Nov 2014.
Possley, J. 152. FTG. Voucher of Phymatosorus scolopendria at Big and Little George Hammock in Miami-Dade County, FL, USA. 20 Nov 2014.