WORLD LIST OF ANGIOSPERM SPECIES WITH EXTRAFLORAL NECTARIES  
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Taxonomy conforms to Angiosperm Phylogeny Working Group, as reported on Angiosperm Phylogeny website (Stevens 2001 and later)  http://www.mobot.org/MOBOT/Research/APweb/welcome.html 
Where APWG is ambiguous, genera in families listed on Kew Garden website are used
For more information contact me at kkeeler1@unl.edu  
*Totals below include plants where the floral nectary remains active and visitors protect the developing fruit See Postfloral list
Link toExtrafloral Nectaries References Link to NonAngiosperms: Ferns Gymnosperms   Index by genus
  FAMILY ORDER # genera # species #genera with EFNs # species with EFNs comments Last edit 12 March, 2008
SUMS
113*
  9,180 196,231
733
3,987
(#'s rechecked 3/30/07) family updated:
1 Acanthaceae Lamiales 229 3500 7 45 includes postfloral nectaries
10 March 2008
1 Adoxaceae Dipsacales 5 200 2 26  
31 Dec., 2007
1 Agavaceae Asparagales 23 637 1 2  
June 24 2005
1 Alismataceae Alismatales 12 81 1 1  
June 6 2005
  Altingiaceae         none: see Altingiaceae notes
9 March 2008
1 Amaranthaceae Caryophyllales 174 2500 1 1  
Oct. 25, 2005
1 Anacardiaceae  Sapindales 70 600 2 5  
June 13 2005
1 Ancistrocladaceae Caryophyllales 1 12 1 1  
June 6 2005
1 Annonaceae Magnoliales 129 2220 1 1  
June 6 2005
1 Apocynaceae Gentianales 415 4555 19 23  
25 Dec., 20071
1 Aquifoliaceae Aquifoliales 1 405 1 1  
3 January 2008
1 Araceae Alismatales 106 4025 2 10  
3 Jan. 2008
  Arecaceae (Palms)           none: see Corner 1966
1 Aristolocaceae Piperales 8 480 1 1  
June 21 05
  Asclepiadaceae           see Apocynaceae
1 Asparagaceae Asparagales 2 295 1 2  
31 Dec. 2007
1 Asteraceae Asterales 1528 22750 14 36  
31 Dec,, 2007
1 Balanophoraceae Santalales 17 50 1 2  
14 Dec. 2007
1 Balsaminaceae Ericales 2 1000 3 21  
31 Dec. 2007
1 Bignoniaceae Lamiales 110 800 58 176  
7 March 2008
1 Bixaceae Malvales 1 5 1 1  
June 27 2005
0 Bombacaceae           see Malvaceae
1 Boraginaceae unplaced eusteridsd 130 2635 1 2  
Aug 18 2005
1 Bromeliaceae Poales 57 1400 5 11  
28 Dec. 2007
1 Burseraceae Sapinales 18 550 1 1  
28 Nov 2005
1 Cactaceae Caryophllales 100 1500 19 74  
14 Dec. 2007
0 Caesalpinaceae           see Fabaceae
1 Campanulaceae Asterales 79 2300 2 2  
21 Dec.2007
1 Capparaceae Brassicales 16 480 2 4  
17 Dec. 2007
0 Caprifoliaceae Dipsacales     glandular hairs yes; extrafloral nectaries???    
6 March 2008
0 Caprifoliaceae, in part           see Adoxaceae  
1 Caryocaraceae Malpighiales 2 21 1 1  
1 Jan. 2008
1 Caryophyllaceae Caryophyllales 85 2200 2 2  
22 Jun 2005
1 Chrysobalanaceae Malpighiales 17 460 8 49  
14 Dec. 2007
  Cleomaceae Brassicales 10 300 1 1  
18 Aug 2005
1 Clusiaceae Malpighiales 27 1050 1 1  
22 Jun 2005
1 Cochlospermaceae Malvales 2 15 1 1  
26 Aug 2005
1 Combretaceae Myrtales 14 500 8 53  
3 Jan. 2008
1 Convolvulaceae Solanales 57 1601 11 100  
1 Jan. 2008
1 Costaceae Zingiberales 6 110 1 8  
12 Dec. 2007
1 Crassulaceae Saxifragales 34 1370 1 1  
22 Jun 2005
1 Cucurbitaceae Cucurbitales 118 845 27 53  
31 Dec. 2007
0 Cuscutaceae           see Convolvulaceae
1 Dichapetalaceae Malpighiales 3 165 1 19  
29 Jun 2005
1 Dioncophyllaceae Caryophyllales 3 3 1 1  
21 Jun 2005
1 Dioscoreaceae Dioscoreales 8 870 3 71  
31 Dec.2007
1 Dipterocarpaceae Malvales 17 680 11 25  
16 Aug 2005
1 Droseraceae Caryophyllales 3 115 3 3  
June 21 05
1 Ebenaceae Ericales 4 548 3 110  
24 Dec. 2007
1 Ericaceae Ericales 126 3995 3 18  
31 Dec. 2007
1 Euphorbiaceae Malpighiales 218 5935 57 299  
5 March 2008
1 Fabaceae Fabales 642 18000 97 1027  
11 March, 2008
1 Fagaceae Fagales 7 670 1 2  
22 Dec. 2007
0 Flacourtiaceae       0 0 see Salicaceae,
Passifloraceae
1 Flagellariaceae Poales 1 4 1 1  
19 Jul 2005
1 Fouquieraceae Ericales 1 11 1 1  
10 Jun 2005
1 Gentianaceae Gentianales 87 650 1 1  
14 Jun 2005
1 Gesneriaceae Lamiales 147 3870 1 1  
22 Jun 2005
1 Goodeniaceae Asterales 12 400 1 1  

25 June 2005

1 Hemerocallidaceae Asparagales 19 85 1 2  
31 Dec. 2007
1 Humiriaceae Malpighiales 8 50 2 3  
June 27 2005
1 Hydrangeaceae Cornales 17 190 1 1 doubtful
June 27 2005
1 Icacinaceae "unplaced", was Celastrales Celastrales 24 150 1 1  
June 27 2005
1 Iridaceae Asparagales 67 1800 1 3  
June 27 2005
1 Ixoanthaceae Malphigiales 5 21 1 1  
17 Aug 2005
1 Lamiaceae Lamiales 236 7173 10 36  
1 Jan. 2008
1 Lecythidaceae Ericales 25 310 1 1  
26 Aug 2005
0 Leeaceae           see Vitaceae
1 Liliaceae Liliales 16 635 3 4  
12 Dec. 2007
1 Linaceae Linaceae 10 300 1 5  
27 Jun 2005
1 Loasaceae Cornales 14 265 1 3 postfloral
14 Jun 2005
  Lobeliaceae           see Campanulaceae
1 Loganiaceae Gentianales 13 420 2 10  
20 Jun 2005
1 Lythraceae Myrtales 31 620 2 2  
14 Dec. 2007
1 Malpighiaceae Malpighiales 68 1250 24 175  
31 Dec. 2007
1 Malvaceae Malvales 243 4425 45 293  
30 Dec. 2007
1 Marantaceae Zingiberales 31 550 8 24 all species Kirchoff and Kennedy 1985
29 Jun 2005
1 Marcgraviaceae Ericales 7 130 5 13  
14 Dec. 2007
1 Melastomaceae Myrtales 185 4570 1 1  
19 Aug 2005
1 Meliaceae Sapindales 5 621 8 15  
1 Jan. 2008
1 Menispermaceae Ranunculales 70 420 1 2 doubtful
June 24 2005
0 Mimosaceae           see Fabaceae
1 Moraceae Rosales 38 1100 1 18  
1 Jan. 2008
1 Moringaceae Brassicales 1 12 1 1  
10 Aug 2005
1 Muscaceae Zingiberales 2 35 1 1  
22 Jun 2005
1 Myrsinaceae Ericales 41 1435 5 6  
1 Jan. 2008
1 Myrtaceae Myrtales
131
4620 2 4  
1 Jan. 2008
1 Nepenthaceae Caryophllales
1
90 1 11  
1 Jan. 2008
1 Ochnaceae Malpighiales 27 495 1 4  
30 Dec. 2007
1 Olacaceae Santalales 14 103 1 1  
21 Jun 2005
1 Oleaceae Lamiales 24 615 7 32  
31 Dec. 2007
1 Onagraceae Myrtales 24 650 1 3  
24 Jun 2005
1 Orchidaceae Asparagales 788 20000 46 77  
12 Dec. 2007
1 Paeoniaceae Saxifragales 1 33 1 4  
31 Dec. 2007
1 Passifloraceae Malpighiales 17 670 16 404  
26 Dec., 2007
1 Pedaliaceae Lamiales 13 70 8 12  
30 Dec. 2007
1 Phyllanthaceae Malpighiales 59 1745 1 1  
14 Dec. 2007
1 Phytolaccaceae Caryophyllales 13 65 1 1  
19 Aug 2005
1 Plumbaginaceae Caryophllales 27 836 1 1  
23 Jun 2005
1 Poaceae Poales 280 9700 6 29  
29 Feb. 2008
1 Polygalaceae Fabales 18 1045 5 15  
17 Aug 2005
1 Polygonaceae Caryophyllales 43 1100 5 19  
31 Dec. 2007
x Polypodiaceae separate file: Ferns        
1 Proteaceae Proteales 77 160 6 7  
11 March, 2008
0 Punicaceae           see Lythraceae
1 Ranunculaceae Ranunculales 62 2525 1 1  
23 Jun 2005
1 Rhamnaceae Rosales 52 925 2 2  
26 Aug 2005
1 Rhizophoraceae Malpighiales 16 149 1 1  
14 Dec. 2007
1 Rosaceae Rosales 95 2830 20 220  
31 Dec. 2007
1 Rubiaceae Gentianales 600 10000 9 11  
6 February 2008
1 Ruscaceae Asparagales 26 475 2 24  
23 Jun 2005
1 Rutaceae Sapindales 161 1815 4 18  
1 Jan. 2008
1 Salicaceae Malpighiales 55 1010 8 44  
31 Dec. 2007
1 Sapindaceae Sapindales 135 1580 4 6  
9 Sept , 2005
1 Sarraceniaceae Ericales 3 15 3 3  
2 Aug 2005
1 Saxifragaceae Saxifragales 29 630 1 1  
24 Jun 2005
1 Scrophulariaceae Lamiales 65 1700 4 9  
20 Jun 05
1 Simaroubaceae Sapindales 19 95 17 21  
8 Sept, 2005
1 Smilacaceae Liliales 2 300 1 1  
1 Jan. 2008
1 Solanaceae Solanales 102 2260 2 13
22 Dec. , 2007
1 Staphyleaceae Crossosomatales 3 45 1 1  
17 Aug 2005
0 Sterculiaceae           see Malvaceae
1 Stryacaceae Ericales 11 160 1 1  
22 Jun 2005
1 Stylidiaceae Asterales
6
245
1
1
  12 March 2008
1 Thymelaeaceae Malvales
46
755
1
1
 
30 March 2007
0 Tiliaceae           see Malvaceae
1 Turneraceae Malpighiales 10 205 4 29  
27 Dec. 2007
1 Verbenacaeae Lamiales 34 1175 10 14  
10 March 2008
1 Vitaceae Vitales 14 849 3 6 includes Leea
4 March 2008
1 Vochysiaceae Myrtales 7 190 4 11  
31 Dec. 2007
0 Zingiberaceae   52 1300 0 0 see Costaceae
4 October 2006