330:
1772:
316:
400:
Art. 3.1: "The formal category which may comprise cultivars, individual plants or combinations thereof on the basis of defined character-based similarity is the Group"; Glossary: "Group - a formal category denoting an assemblage of cultivars, individual plants, or assemblages of plants on the basis
160:
Every word in a Group name is capitalized (unless that conflicts with linguistic custom; for example, lower-case is used after a hyphen in a hyphenated term, like "Red-skinned", and for conjunctions and prepositions except in the first word of the name). This is followed by the capitalized word
130:
Dutch Group. A plant species that loses its taxonomic status in botany, but still has agricultural or horticultural value, meets the criteria for a cultivar group, and its former botanical name can be reused as the name of its cultivar group. For example,
209:"Group" is translated in non-English material, and uses the word order of the language in question, but is always capitalized. Translation may or may not be applied to the name itself. For example, "Chater's Double Group" may appear as "
74:
is also sometimes encountered. There is a slight difference in meaning, since a cultivar-group was defined to comprise cultivars, whereas a Group may include individual plants. The cultivar-groups, in turn, replaced the similar category
65:
introduced the term and symbol "Group" in 2004, as a replacement for the lengthy and hyphenated "cultivar-group", which had previously been the category's name since 1969. For the old name "cultivar-group", the non-standard abbreviation
278:, also prefers to use the capitalized orthography in running text, e.g. "several Groups", but this stylization has not been universally adopted even in specialist literature. It is always given as "Group" or "Gp" in an actual name.
161:"Group". The combined Group name is not italicized or otherwise stylized, and follows the italicized Latin epithet. It can also be used after a vernacular name for the species, genus, or other category. Examples:
1602:
297:
198:
ICNCP illustrates this order consistently, though in actual practice the cultivar name in single quotation marks may come before that of the cultivar group (with or without parentheses):
1607:
29:
120:
A Group is usually united by a distinct common trait, and often includes members of more than one species within a genus. For example, early flowering cultivars in the genus
1740:
275:
1658:
1474:
495:
393:
215:
Chater's Double" in French (retaining the
English name but translating "Group" and using French word order), yet with full translation as "
1664:
459:
559:
1801:
998:
1479:
929:
1648:
1235:
750:
445:
David M. Spooner; Wilbert L. A. Hetterscheid; Ronald G. van den Berg; Willem A. Brandenburg (2003). Jules Janick (ed.).
415:
International Code of
Nomenclature for Cultivated Plants, 4th edition (1969), 5th edition (1980) and 6th edition (1995)
86:
The ICNCP distinguishes between the terms "group" and "Group", a "group" being "an informal taxon not recognized in the
1730:
1484:
1464:
511:
446:
1614:
1752:
1597:
647:
254:, having extra sets of chromosomes. Polyploidy is a characteristic sometimes used to define a cultivar group.
187:
character). A cultivar group may be surrounded by parentheses (round brackets) for clarity in long epithets:
287:"Gp" without a period (full point) is consistent with other abbreviated horticultural symbols like "gx" for
1582:
1506:
42:
1747:
1469:
1321:
993:
552:
1639:
1184:
432:
424:
288:
245:
291:, and differs from higher-level taxonomic style, e.g. "var." for "variety" and "f. sp." for "
1796:
1577:
1442:
1311:
1220:
912:
698:
594:
335:
224:
Groups are not necessarily mutually exclusive. For example, the same potato may be designated
1735:
584:
579:
491:
455:
389:
248:, a taxonomic category for hybrid orchids, defined by parentage rather than by characteristics
1521:
1427:
1422:
1376:
1269:
1254:
1215:
1140:
981:
905:
802:
744:
114:
106:
1775:
1757:
1619:
1448:
1398:
1386:
1366:
1348:
1284:
1111:
1079:
1040:
1013:
842:
837:
728:
664:
545:
292:
1669:
1587:
1569:
1533:
1289:
1116:
1094:
1060:
1035:
1018:
1008:
1003:
885:
703:
688:
642:
637:
142:
133:
94:
1790:
1705:
1453:
1371:
1343:
1306:
1274:
1210:
1130:
1030:
832:
815:
738:
718:
659:
654:
602:
321:
110:
1700:
1690:
1592:
1316:
1301:
810:
777:
236:
Maincrop Red-skinned Group, "depending on the purpose of the classification used".
122:
105:
contexts. Any given Group may have a different taxonomic classification, such as a
98:
476:
374:
1516:
1501:
1496:
1432:
1294:
1074:
1045:
944:
939:
787:
627:
622:
607:
102:
1545:
1538:
1528:
1511:
1194:
1189:
1125:
917:
764:
723:
617:
311:
1653:
1550:
1279:
1084:
1065:
976:
900:
772:
713:
693:
632:
448:
Plant
Nomenclature and Taxonomy | An Horticultural and Agronomic Perspective
251:
315:
1695:
1685:
1629:
1624:
1391:
1264:
1240:
1157:
827:
612:
90:", while a "Group" is the formal taxon defined by the ICNCP (see above).
38:
880:
875:
792:
782:
519:
388:(8th ed.). International Society of Horticultural Science: 1–184.
1333:
1225:
1179:
1145:
1099:
1089:
1050:
988:
969:
964:
959:
954:
949:
568:
490:(8th ed.). International Society of Horticultural Science: 143.
166:
454:. Horticultural Reviews. Vol. 28. John Wiley & Sons, Inc.
1557:
1491:
1413:
1381:
1338:
1230:
1172:
1167:
1162:
1150:
1135:
1104:
1025:
683:
674:
1408:
1403:
1055:
895:
870:
865:
849:
820:
708:
87:
541:
298:
International Code of
Nomenclature for algae, fungi, and plants
1328:
890:
41:) that share a defined characteristic. It is represented in a
477:"International Code of Nomenclature for Cultivated Plants"
375:"International Code of Nomenclature for Cultivated Plants"
537:
518:. HorTax: Cultivated Plant Taxonomy Group. Archived from
30:
61:. The Group is not italicized in a plant's name. The
137:
is usually no longer recognized as a species, and the
83:), which did not necessarily contain named varieties.
117:
name, given in italics) after the genus and species.
183:"Group" may be abbreviated "Gp" (without a terminal
1714:
1678:
1568:
1441:
1357:
1253:
1203:
928:
858:
801:
763:
737:
673:
593:
53:. "Group" or "Gp" is always written with a capital
276:International Society for Horticultural Science
553:
8:
1659:International Association for Plant Taxonomy
216:
210:
475:Brickell, C. D.; et al., eds. (2009).
373:Brickell, C. D.; et al., eds. (2009).
760:
560:
546:
538:
232:Red-skinned Group, or given with both as
1603:International Code of Nomenclature (ICN)
411:
409:
368:
366:
364:
362:
360:
358:
356:
354:
352:
348:
264:
93:This categorization does not apply to
7:
16:Grouping used for cultivated plants
14:
1608:ICN for Cultivated Plants (ICNCP)
1771:
1770:
328:
314:
179:hollyhock Chater's Double Group
37:) used for cultivated plants (
27:) is a formal category in the
1:
1649:History of plant systematics
1236:Thorns, spines, and prickles
1818:
1465:Alternation of generations
194:(Maincrop Group) 'Desiree'
1766:
1615:Cultivated plant taxonomy
1578:Biological classification
575:
1475:Evolutionary development
205:'Desiree' Maincrop Group
57:in a botanical name, or
1126:Hypanthium (Floral cup)
431:database, for example,
218:Chaters Doppelte Gruppe
1802:Botanical nomenclature
1741:by author abbreviation
1665:Plant taxonomy systems
1583:Botanical nomenclature
401:of defined similarity"
217:
211:
1748:Botanical expeditions
484:Scripta Horticulturae
382:Scripta Horticulturae
1480:Evolutionary history
1470:Double fertilization
1322:Cellular respiration
148:can be used to form
699:Non-vascular plants
246:Grex (horticulture)
228:Maincrop Group, or
97:generally, only to
1204:Surface structures
999:Flower development
336:agriculture portal
274:'s publisher, the
174:Neofinetia falcata
1784:
1783:
1423:Herbaceous plants
1249:
1248:
497:978-0-643-09440-6
395:978-0-643-09440-6
234:Solanum tuberosum
230:Solanum tuberosum
226:Solanum tuberosum
203:Solanum tuberosum
192:Solanum tuberosum
170:Darkest Red Group
1809:
1774:
1773:
1753:Individual trees
1428:Secondary growth
1399:Succulent plants
1387:Prostrate shrubs
1270:Apical dominance
1255:Plant physiology
1216:Epicuticular wax
761:
754:
745:Plant morphology
562:
555:
548:
539:
532:
531:
529:
527:
508:
502:
501:
481:
472:
466:
465:
453:
442:
436:
422:
416:
413:
404:
403:
379:
370:
338:
333:
332:
331:
324:
319:
318:
306:
285:
279:
269:
220:
214:
186:
152:Fortunei Group.
141:states that the
107:subspecific name
1817:
1816:
1812:
1811:
1810:
1808:
1807:
1806:
1787:
1786:
1785:
1780:
1762:
1731:Botanical terms
1724:
1710:
1674:
1620:Citrus taxonomy
1598:Author citation
1564:
1458:
1437:
1359:
1353:
1349:Turgor pressure
1257:
1245:
1199:
1014:Floral symmetry
932:
924:
854:
843:Vascular bundle
838:Vascular tissue
797:
757:
748:
747:
733:
704:Vascular plants
669:
665:Plant pathology
589:
571:
566:
536:
535:
525:
523:
510:
509:
505:
498:
479:
474:
473:
469:
462:
451:
444:
443:
439:
423:
419:
414:
407:
396:
377:
372:
371:
350:
345:
334:
329:
327:
320:
313:
310:
309:
293:forma specialis
286:
282:
270:
266:
261:
242:
184:
158:
17:
12:
11:
5:
1815:
1813:
1805:
1804:
1799:
1789:
1788:
1782:
1781:
1779:
1778:
1767:
1764:
1763:
1761:
1760:
1755:
1750:
1745:
1744:
1743:
1733:
1727:
1725:
1723:
1722:
1721:Related topics
1719:
1715:
1712:
1711:
1709:
1708:
1703:
1698:
1693:
1688:
1682:
1680:
1676:
1675:
1673:
1672:
1670:Taxonomic rank
1667:
1662:
1656:
1651:
1646:
1645:
1644:
1643:
1642:
1637:
1632:
1622:
1612:
1611:
1610:
1605:
1600:
1595:
1590:
1588:Botanical name
1580:
1574:
1572:
1570:Plant taxonomy
1566:
1565:
1563:
1562:
1561:
1560:
1555:
1554:
1553:
1546:Megasporangium
1543:
1542:
1541:
1534:Microsporangia
1526:
1525:
1524:
1519:
1514:
1509:
1499:
1494:
1489:
1488:
1487:
1477:
1472:
1467:
1461:
1459:
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1436:
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1425:
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1418:
1417:
1416:
1406:
1401:
1396:
1395:
1394:
1389:
1379:
1374:
1372:Cushion plants
1363:
1361:
1355:
1354:
1352:
1351:
1346:
1341:
1336:
1331:
1326:
1325:
1324:
1319:
1309:
1307:Plant hormones
1304:
1299:
1298:
1297:
1290:Photosynthesis
1287:
1282:
1277:
1272:
1267:
1261:
1259:
1251:
1250:
1247:
1246:
1244:
1243:
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1223:
1218:
1213:
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1198:
1197:
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1187:
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1177:
1176:
1175:
1170:
1165:
1155:
1154:
1153:
1148:
1143:
1138:
1128:
1123:
1122:
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1120:
1119:
1114:
1109:
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1102:
1082:
1077:
1072:
1071:
1070:
1069:
1068:
1063:
1053:
1048:
1043:
1038:
1033:
1023:
1022:
1021:
1016:
1011:
1009:Floral formula
1006:
1004:Floral diagram
1001:
996:
986:
985:
984:
979:
974:
973:
972:
967:
957:
947:
942:
936:
934:
933:(incl. Flower)
926:
925:
923:
922:
921:
920:
915:
910:
909:
908:
903:
893:
883:
878:
873:
868:
862:
860:
856:
855:
853:
852:
847:
846:
845:
835:
833:Storage organs
830:
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795:
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769:
767:
758:
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755:
741:
735:
734:
732:
731:
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721:
719:Spermatophytes
716:
711:
706:
701:
696:
691:
689:Archaeplastida
686:
680:
678:
671:
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668:
667:
662:
657:
652:
651:
650:
643:Phytogeography
640:
638:Phytochemistry
635:
630:
625:
620:
615:
610:
605:
599:
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595:Subdisciplines
591:
590:
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582:
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572:
567:
565:
564:
557:
550:
542:
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533:
522:on 2 July 2017
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207:
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171:
157:
154:
134:Hosta fortunei
95:plant taxonomy
45:by the symbol
43:botanical name
25:cultivar-group
15:
13:
10:
9:
6:
4:
3:
2:
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1706:Phytochemical
1704:
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1373:
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1365:
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1345:
1344:Transpiration
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1323:
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1234:
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1191:
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1156:
1152:
1149:
1147:
1144:
1142:
1139:
1137:
1134:
1133:
1132:
1131:Inflorescence
1129:
1127:
1124:
1118:
1115:
1113:
1110:
1106:
1103:
1101:
1098:
1097:
1096:
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1073:
1067:
1064:
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1058:
1057:
1054:
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1042:
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1037:
1034:
1032:
1029:
1028:
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1024:
1020:
1017:
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1012:
1010:
1007:
1005:
1002:
1000:
997:
995:
992:
991:
990:
987:
983:
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978:
975:
971:
968:
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962:
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869:
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851:
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844:
841:
840:
839:
836:
834:
831:
829:
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822:
819:
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816:Ground tissue
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789:
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779:
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766:
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746:
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739:Plant anatomy
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661:
660:Plant ecology
658:
656:
655:Plant anatomy
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649:
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634:
631:
629:
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621:
619:
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614:
611:
609:
606:
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603:Archaeobotany
601:
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461:0-471-21542-2
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1443:Reproduction
1433:Woody plants
1358:Plant growth
1317:Gas Exchange
1302:Phytomelanin
1180:Plant embryo
930:Reproductive
778:Phragmoplast
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1497:Germination
1312:Respiration
1295:Chlorophyll
1141:Pedicellate
1075:Gametophyte
994:Aestivation
945:Antheridium
940:Archegonium
788:Plasmodesma
765:Plant cells
628:Paleobotany
623:Ethnobotany
608:Astrobotany
156:Orthography
1791:Categories
1539:Microspore
1529:Sporangium
1507:Artificial
1195:Sporophyte
1190:Sporophyll
1185:Receptacle
1080:Gynandrium
950:Androecium
859:Vegetative
729:Angiosperm
724:Gymnosperm
618:Dendrology
516:HorTax.org
343:References
77:convariety
1797:Cultivars
1736:Botanists
1654:Herbarium
1551:Megaspore
1449:Evolution
1392:Subshrubs
1360:and habit
1285:Nutrition
1280:Cellulose
1275:Bulk flow
1258:Materials
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1085:Gynoecium
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1061:Dispersal
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913:Sessility
901:Cataphyll
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773:Cell wall
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648:Geobotany
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429:Plantwise
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72:cv. Group
68:cv. group
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1776:Category
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1686:Agronomy
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1377:Rosettes
1265:Aleurone
1241:Trichome
1158:Perianth
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613:Bryology
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240:See also
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1454:Ecology
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1041:Capsule
1031:Anatomy
982:Tapetum
906:Petiole
881:Rhizome
876:Rhizoid
803:Tissues
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585:Outline
580:History
526:19 July
143:epithet
115:variety
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1758:Plants
1661:(IAPT)
1414:Lianas
1382:Shrubs
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960:Stamen
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1492:Flora
1409:Vines
1404:Trees
1367:Habit
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1231:Stoma
1173:Sepal
1168:Petal
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1136:Bract
1117:Style
1105:Ovule
1095:Ovary
1036:Berry
1026:Fruit
1019:Whorl
886:Shoot
684:Algae
675:Plant
480:(PDF)
452:(PDF)
378:(PDF)
272:ICNCP
259:Notes
150:Hosta
139:ICNCP
63:ICNCP
47:Group
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1640:Grex
1522:Self
1056:Seed
918:Stem
896:Leaf
871:Root
866:Bulb
850:Wood
811:Cork
709:Fern
528:2016
492:ISBN
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289:grex
128:Iris
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
