Knowledge (XXG)

Erigeron bonariensis

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It flowers in August and continues fruiting until the first frosts. It is instantly recognisable by its blue-green foliage, very narrow, undulate stem-leaves, and purple-tipped involucral bracts. It reproduces only by seed, which are easily blown and spread by wind.
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grows up to 75 cm (29.5 in) in height and its leaves are covered with stiff hairs, including long hairs near the apex of the
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Top-heavy greyish gangly look with initial central inflorescence subsequently overtopped by some side ones
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The following are bright dry summer 1st-year forms; in contrast to shady damp winter forms that follow.
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White ray flowers and yellow disc flowers in fully "open" flower heads, Maui, Hawaii
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Broad heads (may be narrower especially in winter) usually with reddened tips
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Showing diffusely branched or strangled appearances with small flower heads
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Flower heads are followed by seeds, which are easily carried by the wind.
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Erigeron bonariensis growing as a weed on a building in New Delhi, India
745:. It is widespread throughout Australia, where it thrives on roadsides, 1786: 1413: 1067: 762: 750: 738: 1812: 1670: 1439: 880:
Leaf base hairs (a few long ones usually present) and underside hairs
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Stem leaves of robust stems multi-lengthed, grey (sometimes green)
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Foliage becomes grey-green in dry-summer regions, such as Israel
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Leaf surface hairs (similar underside), sometimes poorly hairy
719:. It has become naturalized in many other regions, including 610:. It has become naturalized in many other regions, including 741:, found along walls and in cracks in pavements and concrete 27:
Species of flowering plant in the daisy family Asteraceae
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Altervista Flora Italiana, Cespica di Buenos Aires,
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is found throughout the tropics and subtropics as a
1587: 1237: 598:, found throughout the tropics and subtropics as a 1193:includes photos and European distribution map 1122:, International Environmental Weed Foundation 8: 1225: 1010:leaves, before plant matures and flowers, 197: 42: 31: 1204:Tall Fleabane by Agriculture of Victoria 1098:United States Department of Agriculture 1089:Germplasm Resources Information Network 1060: 973: 906: 786: 229: 7: 2028:60682a25-90b9-4ca1-8cd4-b2a0eb772dc6 1937:ba3816c7-6708-4ece-9f58-d860c3e16396 1564:ce01f286-fb0d-4a97-9007-4295c37065b8 1489:b7dd2406-eb8f-473a-b3e1-67f99e359cb8 964:May have particularly reddened heads 898:Winter, Damp, Shady, Biennial Forms 916:Winter form near water in the open 443:(DC.) Sch.Bip. 1845 not Nutt. 1818 25: 1068:Tropicos, Erigeron bonariensis L. 928:Strangled winter form in the open 680:. It can easily be confused with 1042: 1030: 1018: 1000: 988: 976: 957: 945: 933: 921: 909: 885: 873: 861: 849: 837: 825: 813: 801: 789: 737:is a rare alien in southeastern 355:(Willd.) Täckh. 1956 not L. 1753 55: 1989:urn:lsid:ipni.org:names:64809-2 1538:urn:lsid:ipni.org:names:93603-2 1: 1094:Agricultural Research Service 579:(Hoffmanns. & Link) Nyman 571:(Hoffmanns. & Link) Nyman 995:Stiff hairs cover the plant. 2102:Taxa named by Carl Linnaeus 594:is a species in the family 523:Gillies ex Hook. & Arn. 2118: 1151:Comprehensive profile for 686:, which grows taller, and 408:Dimorphanthes angustifolia 2092:Flora of Southern America 940:Winter form in damp shade 844:Leaf narrow showing hairs 220: 213: 205: 196: 179: 172: 52:Scientific classification 50: 41: 34: 2097:Plants described in 1753 1218:Weed Identification Tool 773:Photographic Description 700:Distribution and habitat 552:Eupatorium dictyophyllum 528:Erigeron transsilvanicus 769:and disturbed grounds. 761:vegetation, forest and 464:Erigeron coranopifolius 432:Dimorphanthes linifolia 488:Erigeron linearifolius 1216:Brisbane City Council 480:Erigeron gusalakensis 451:Ten. 1831 not L. 1753 424:Dimorphanthes hispida 400:Dimorphanthes ambigua 371:Hoffmanns. & Link 307:Hoffmanns. & Link 280:Conyza chenopodioides 206:Occurrence data from 1269:Erigeron bonariensis 1239:Erigeron bonariensis 1189:Erigeron bonariensis 1134:Erigeron bonariensis 952:From a biennial form 705:Erigeron bonariensis 662:Erigeron bonariensis 591:Erigeron bonariensis 544:Eschenbachia ambigua 483:Rech.f. & Edelb. 416:Dimorphanthes crispa 183:Erigeron bonariensis 36:Erigeron bonariensis 1177:, Flowers in Israel 1163:, Malta Wild Plants 683:Erigeron canadensis 576:Pulicaria rufescens 560:Leptilon linifolium 496:Erigeron linifolius 448:Erigeron canadensis 392:Conyzella linifolia 248:Leptilon bonariense 232:Erigeron bonariense 165:E. bonariensis 1927:Conyza~bonariensis 1712:Conyza_bonariensis 1676:conyza-bonariensis 1619:Conyza bonariensis 1589:Conyza bonariensis 1174:Conyza bonariensis 1159:2006-11-10 at the 1153:Conyza bonariensis 1119:Conyza bonariensis 1082:Conyza bonariensis 753:, gardens, lawns, 639:Argentine fleabane 635:wavy-leaf fleabane 631:flax-leaf fleabane 568:Pulicaria gracilis 536:Erigeron undulatus 467:Willk. & Lange 456:Erigeron contortus 267:(DC.) E.H.L.Krause 256:Marsea bonariensis 240:Conyza bonariensis 18:Conyza bonariensis 2074: 2073: 1958:Open Tree of Life 1231:Taxon identifiers 868:Hairs at leaf tip 587: 586: 580: 572: 564: 556: 548: 540: 532: 524: 520:Erigeron sordidus 516: 512:Erigeron naudinii 508: 500: 492: 484: 476: 468: 460: 452: 444: 440:Erigeron ambiguus 436: 428: 420: 412: 404: 396: 388: 384:Conyza sordescens 380: 372: 364: 356: 348: 340: 336:Conyza leucodasys 332: 324: 316: 308: 300: 292: 284: 276: 268: 260: 259:(L.) V.M. Badillo 252: 244: 236: 226: 16:(Redirected from 2109: 2067: 2066: 2054: 2053: 2041: 2040: 2031: 2030: 2018: 2017: 2005: 2004: 1992: 1991: 1979: 1978: 1966: 1965: 1953: 1952: 1940: 1939: 1930: 1929: 1917: 1916: 1904: 1903: 1901:NHMSYS0000457482 1891: 1890: 1878: 1877: 1865: 1864: 1852: 1851: 1839: 1838: 1826: 1825: 1816: 1815: 1803: 1802: 1790: 1789: 1777: 1776: 1767: 1766: 1754: 1753: 1741: 1740: 1728: 1727: 1715: 1714: 1702: 1701: 1689: 1688: 1679: 1678: 1666: 1665: 1656: 1655: 1643: 1642: 1633: 1632: 1623: 1622: 1621: 1608: 1607: 1606: 1580: 1579: 1567: 1566: 1554: 1553: 1541: 1540: 1528: 1527: 1515: 1514: 1505: 1504: 1492: 1491: 1482: 1481: 1469: 1468: 1456: 1455: 1443: 1442: 1430: 1429: 1417: 1416: 1404: 1403: 1394: 1393: 1381: 1380: 1368: 1367: 1355: 1354: 1342: 1341: 1329: 1328: 1316: 1315: 1306: 1305: 1293: 1292: 1283: 1282: 1273: 1272: 1271: 1258: 1257: 1256: 1226: 1219: 1211: 1205: 1200: 1194: 1184: 1178: 1170: 1164: 1148: 1142: 1132:Flora of China, 1129: 1123: 1115: 1109: 1108: 1106: 1104: 1076: 1070: 1065: 1046: 1034: 1022: 1004: 992: 980: 961: 949: 937: 925: 913: 889: 877: 865: 853: 841: 829: 817: 805: 793: 625:Common names of 578: 570: 562: 554: 546: 538: 530: 522: 515:(Bonnet) Bonnier 514: 506: 504:Erigeron looseri 498: 490: 482: 474: 472:Erigeron crispus 466: 458: 450: 442: 434: 426: 418: 410: 402: 394: 386: 378: 370: 368:Conyza rufescens 362: 354: 352:Conyza linifolia 346: 338: 330: 322: 314: 306: 298: 290: 282: 274: 266: 258: 250: 242: 234: 224: 201: 185: 60: 59: 46: 32: 21: 2117: 2116: 2112: 2111: 2110: 2108: 2107: 2106: 2077: 2076: 2075: 2070: 2062: 2057: 2049: 2044: 2036: 2034: 2026: 2021: 2013: 2008: 2000: 1995: 1987: 1982: 1974: 1969: 1961: 1956: 1948: 1945:Observation.org 1943: 1935: 1933: 1925: 1920: 1912: 1907: 1899: 1894: 1886: 1881: 1873: 1868: 1860: 1855: 1847: 1842: 1834: 1829: 1821: 1819: 1811: 1806: 1798: 1793: 1785: 1780: 1772: 1770: 1762: 1757: 1749: 1744: 1736: 1731: 1723: 1718: 1710: 1705: 1697: 1692: 1684: 1682: 1674: 1669: 1661: 1659: 1651: 1646: 1638: 1636: 1628: 1626: 1617: 1616: 1611: 1602: 1601: 1596: 1583: 1575: 1570: 1562: 1557: 1549: 1544: 1536: 1531: 1523: 1518: 1510: 1508: 1500: 1495: 1487: 1485: 1477: 1472: 1464: 1459: 1451: 1446: 1438: 1433: 1425: 1420: 1412: 1407: 1399: 1397: 1389: 1384: 1376: 1371: 1363: 1358: 1350: 1345: 1337: 1332: 1324: 1319: 1311: 1309: 1301: 1296: 1288: 1286: 1278: 1276: 1267: 1266: 1261: 1252: 1251: 1246: 1233: 1223: 1222: 1212: 1208: 1201: 1197: 1185: 1181: 1171: 1167: 1161:Wayback Machine 1149: 1145: 1139: 1130: 1126: 1116: 1112: 1102: 1100: 1078: 1077: 1073: 1066: 1062: 1057: 1050: 1047: 1038: 1035: 1026: 1023: 1014: 1005: 996: 993: 984: 981: 972: 965: 962: 953: 950: 941: 938: 929: 926: 917: 914: 900: 893: 890: 881: 878: 869: 866: 857: 854: 845: 842: 833: 830: 821: 818: 809: 806: 797: 794: 780: 778:Dry Summer Form 775: 713:Central America 702: 659: 643:hairy horseweed 604:Central America 583: 395:(Willd.) Greene 344:Conyza linearis 331:(L.) Less. 1831 328:Conyza ivifolia 320:Conyza ivifolia 304:Conyza gracilis 291:(Pourret) Rupr. 228: 227: 192: 187: 181: 168: 54: 28: 23: 22: 15: 12: 11: 5: 2115: 2113: 2105: 2104: 2099: 2094: 2089: 2079: 2078: 2072: 2071: 2069: 2068: 2055: 2051:wfo-0000043751 2042: 2032: 2019: 2006: 1993: 1980: 1967: 1954: 1941: 1931: 1918: 1905: 1892: 1879: 1866: 1853: 1840: 1827: 1817: 1804: 1791: 1778: 1768: 1755: 1742: 1729: 1716: 1703: 1690: 1680: 1667: 1657: 1644: 1634: 1624: 1609: 1593: 1591: 1585: 1584: 1582: 1581: 1577:wfo-0000075344 1568: 1555: 1542: 1529: 1516: 1506: 1493: 1483: 1470: 1457: 1444: 1431: 1418: 1405: 1395: 1382: 1369: 1356: 1343: 1330: 1317: 1307: 1294: 1284: 1274: 1259: 1243: 1241: 1235: 1234: 1229: 1221: 1220: 1206: 1195: 1179: 1165: 1143: 1137: 1124: 1110: 1071: 1059: 1058: 1056: 1053: 1052: 1051: 1048: 1041: 1039: 1036: 1029: 1027: 1024: 1017: 1015: 1006: 999: 997: 994: 987: 985: 982: 975: 971: 968: 967: 966: 963: 956: 954: 951: 944: 942: 939: 932: 930: 927: 920: 918: 915: 908: 905: 904: 899: 896: 895: 894: 891: 884: 882: 879: 872: 870: 867: 860: 858: 855: 848: 846: 843: 836: 834: 831: 824: 822: 819: 812: 810: 807: 800: 798: 795: 788: 785: 784: 779: 776: 774: 771: 735:E. bonariensis 701: 698: 689:E. sumatrensis 658: 655: 651:hairy fleabane 627:E. bonariensis 585: 584: 582: 581: 573: 565: 563:(Willd.) Small 557: 549: 541: 533: 525: 517: 509: 501: 493: 485: 477: 469: 461: 459:Desf. ex Pers1 453: 445: 437: 435:(Willd.) Rupr. 429: 421: 413: 405: 397: 389: 381: 376:Conyza sinuata 373: 365: 360:Conyza plebeja 357: 349: 341: 333: 325: 317: 312:Conyza hispida 309: 301: 299:(Pourr.) Cout. 293: 288:Conyza crispa] 285: 277: 272:Conyza ambigua 269: 264:Aster ambiguus 261: 253: 245: 243:(L.) Cronquist 237: 223: 222: 221: 218: 217: 211: 210: 203: 202: 194: 193: 188: 177: 176: 170: 169: 162: 160: 156: 155: 148: 144: 143: 138: 134: 133: 128: 124: 123: 118: 111: 110: 105: 98: 97: 92: 85: 84: 79: 72: 71: 66: 62: 61: 48: 47: 39: 38: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2114: 2103: 2100: 2098: 2095: 2093: 2090: 2088: 2085: 2084: 2082: 2065: 2060: 2056: 2052: 2047: 2043: 2039: 2033: 2029: 2024: 2020: 2016: 2011: 2007: 2003: 1998: 1994: 1990: 1985: 1981: 1977: 1972: 1968: 1964: 1959: 1955: 1951: 1946: 1942: 1938: 1932: 1928: 1923: 1919: 1915: 1910: 1906: 1902: 1897: 1893: 1889: 1884: 1880: 1876: 1871: 1867: 1863: 1858: 1854: 1850: 1845: 1841: 1837: 1832: 1828: 1824: 1818: 1814: 1809: 1805: 1801: 1796: 1792: 1788: 1783: 1779: 1775: 1769: 1765: 1760: 1756: 1752: 1747: 1743: 1739: 1734: 1730: 1726: 1721: 1717: 1713: 1708: 1704: 1700: 1695: 1691: 1687: 1681: 1677: 1672: 1668: 1664: 1658: 1654: 1649: 1645: 1641: 1635: 1631: 1625: 1620: 1614: 1610: 1605: 1599: 1595: 1594: 1592: 1590: 1586: 1578: 1573: 1569: 1565: 1560: 1556: 1552: 1547: 1543: 1539: 1534: 1530: 1526: 1521: 1517: 1513: 1507: 1503: 1498: 1494: 1490: 1484: 1480: 1475: 1471: 1467: 1462: 1458: 1454: 1449: 1445: 1441: 1436: 1432: 1428: 1423: 1419: 1415: 1410: 1406: 1402: 1396: 1392: 1387: 1383: 1379: 1374: 1370: 1366: 1361: 1357: 1353: 1348: 1344: 1340: 1335: 1331: 1327: 1322: 1318: 1314: 1308: 1304: 1299: 1295: 1291: 1285: 1281: 1275: 1270: 1264: 1260: 1255: 1249: 1245: 1244: 1242: 1240: 1236: 1232: 1227: 1217: 1214: 1210: 1207: 1203: 1199: 1196: 1192: 1190: 1183: 1180: 1176: 1175: 1169: 1166: 1162: 1158: 1155: 1154: 1147: 1144: 1141: 1140:xiang si cao 1135: 1128: 1125: 1121: 1120: 1114: 1111: 1099: 1095: 1091: 1090: 1085: 1083: 1075: 1072: 1069: 1064: 1061: 1054: 1045: 1040: 1033: 1028: 1021: 1016: 1013: 1009: 1008:Basal rosette 1003: 998: 991: 986: 979: 974: 969: 960: 955: 948: 943: 936: 931: 924: 919: 912: 907: 902: 901: 897: 888: 883: 876: 871: 864: 859: 852: 847: 840: 835: 832:Head close up 828: 823: 816: 811: 804: 799: 792: 787: 782: 781: 777: 772: 770: 768: 764: 760: 756: 752: 748: 744: 740: 736: 732: 730: 726: 722: 721:North America 718: 717:South America 714: 710: 709:pioneer plant 706: 699: 697: 693: 691: 690: 685: 684: 679: 675: 671: 667: 663: 656: 654: 652: 648: 644: 640: 636: 632: 628: 623: 621: 617: 613: 612:North America 609: 608:South America 605: 601: 600:pioneer plant 597: 593: 592: 577: 574: 569: 566: 561: 558: 553: 550: 545: 542: 537: 534: 529: 526: 521: 518: 513: 510: 505: 502: 497: 494: 489: 486: 481: 478: 473: 470: 465: 462: 457: 454: 449: 446: 441: 438: 433: 430: 427:(Kunth) Cass. 425: 422: 417: 414: 409: 406: 401: 398: 393: 390: 385: 382: 377: 374: 369: 366: 361: 358: 353: 350: 345: 342: 337: 334: 329: 326: 321: 318: 313: 310: 305: 302: 297: 296:Conyza crispa 294: 289: 286: 281: 278: 273: 270: 265: 262: 257: 254: 249: 246: 241: 238: 233: 230: 219: 216: 212: 209: 204: 200: 195: 191: 186: 184: 178: 175: 174:Binomial name 171: 167: 166: 161: 158: 157: 154: 153: 149: 146: 145: 142: 139: 136: 135: 132: 129: 126: 125: 122: 119: 116: 113: 112: 109: 106: 103: 100: 99: 96: 93: 90: 87: 86: 83: 82:Tracheophytes 80: 77: 74: 73: 70: 67: 64: 63: 58: 53: 49: 45: 40: 37: 33: 30: 19: 1588: 1238: 1209: 1198: 1188: 1182: 1173: 1168: 1152: 1146: 1133: 1127: 1118: 1113: 1101:. Retrieved 1087: 1081: 1074: 1063: 1012:Maui, Hawaii 970:Other photos 796:General view 765:perimeters, 734: 733: 704: 703: 694: 687: 681: 678:disc florets 670:flower heads 661: 660: 650: 646: 642: 638: 634: 630: 626: 624: 590: 589: 588: 575: 567: 559: 551: 543: 535: 527: 519: 511: 503: 495: 487: 479: 471: 463: 455: 447: 439: 431: 423: 415: 407: 399: 391: 383: 375: 367: 359: 351: 343: 335: 327: 323:Burm.f. 1768 319: 311: 303: 295: 287: 279: 271: 263: 255: 247: 239: 231: 182: 180: 164: 163: 151: 114: 101: 88: 75: 35: 29: 1883:NatureServe 1808:iNaturalist 1613:Wikispecies 1435:iNaturalist 1263:Wikispecies 1103:18 December 767:waste dumps 676:and yellow 674:ray florets 672:have white 657:Description 647:asthma weed 95:Angiosperms 2081:Categories 1663:286-139-2a 1520:Plant List 1310:Calflora: 1136:L. 1753. 1055:References 596:Asteraceae 251:(L.) Small 141:Asteraceae 1764:200023707 1746:FloraBase 1525:gcc-32032 1391:242422264 1378:242422264 1360:FloraBase 1254:Q21874195 757:, parks, 755:footpaths 743:driveways 729:Australia 620:Australia 159:Species: 131:Asterales 65:Kingdom: 2087:Erigeron 2023:VicFlora 2010:Tropicos 1922:NSWFlora 1888:2.150590 1849:10199613 1707:eFloraSA 1683:BioLib: 1604:Q2453589 1598:Wikidata 1559:VicFlora 1546:Tropicos 1466:11431931 1248:Wikidata 1157:Archived 759:riparian 751:pastures 629:include 225:Synonymy 215:Synonyms 152:Erigeron 137:Family: 121:Asterids 108:Eudicots 2064:1212886 2015:2702314 1836:64809-2 1787:5404795 1551:2702433 1453:93603-2 1414:3146717 763:wetland 747:fallows 739:England 403:C.Presl 387:Cabrera 379:Elliott 147:Genus: 127:Order: 69:Plantae 2002:3129-5 1971:PLANTS 1963:747355 1934:NZOR: 1813:160842 1800:104170 1774:CONBON 1771:FoIO: 1738:152911 1725:467652 1671:ARKive 1660:APSA: 1637:APDB: 1627:AoFP: 1486:NZOR: 1427:104212 1401:eribon 1398:FoIO: 1352:155056 1290:101784 1287:APDB: 725:Europe 668:. Its 666:bracts 616:Europe 539:Moench 507:Herter 499:Willd. 475:Pourr. 2059:WoRMS 2035:WoI: 1997:SANBI 1914:91242 1875:37112 1862:15250 1844:IRMNG 1820:IPA: 1733:EUNIS 1686:41443 1653:78577 1640:97590 1509:PFI: 1497:NZPCN 1479:35805 1461:IRMNG 1440:76904 1365:50265 1347:EUNIS 1339:ERIBO 1326:6GNL6 1313:11666 1303:73149 1277:APA: 547:Moris 531:Schur 419:Rupr. 411:Cass. 363:Phil. 315:Kunth 115:Clade 102:Clade 89:Clade 76:Clade 1984:POWO 1976:COBO 1950:9184 1909:NCBI 1870:ITIS 1831:IPNI 1823:5361 1795:GRIN 1782:GBIF 1751:7939 1699:Y24D 1648:APNI 1630:1883 1533:POWO 1512:5443 1502:3663 1474:ITIS 1448:IPNI 1422:GRIN 1409:GBIF 1334:EPPO 1298:APNI 1105:2017 727:and 649:and 618:and 339:Miq. 208:GBIF 2046:WFO 2038:792 1896:NBN 1857:ISC 1759:FNA 1720:EoL 1694:CoL 1572:WFO 1386:FoC 1373:FNA 1321:CoL 1280:654 1138:香丝草 715:or 606:or 555:DC. 491:Cav 347:DC. 283:DC. 275:DC. 2083:: 2061:: 2048:: 2025:: 2012:: 1999:: 1986:: 1973:: 1960:: 1947:: 1924:: 1911:: 1898:: 1885:: 1872:: 1859:: 1846:: 1833:: 1810:: 1797:: 1784:: 1761:: 1748:: 1735:: 1722:: 1709:: 1696:: 1673:: 1650:: 1615:: 1600:: 1574:: 1561:: 1548:: 1535:: 1522:: 1499:: 1476:: 1463:: 1450:: 1437:: 1424:: 1411:: 1388:: 1375:: 1362:: 1349:: 1336:: 1323:: 1300:: 1265:: 1250:: 1191:L. 1096:, 1092:. 1086:. 749:, 731:. 723:, 692:. 653:. 645:, 641:, 637:, 633:, 622:. 614:, 235:L. 190:L. 117:: 104:: 91:: 78:: 1107:. 1084:" 1080:" 20:)

Index

Conyza bonariensis

Scientific classification
Edit this classification
Plantae
Tracheophytes
Angiosperms
Eudicots
Asterids
Asterales
Asteraceae
Erigeron
Binomial name
L.

GBIF
Synonyms
Asteraceae
pioneer plant
Central America
South America
North America
Europe
Australia
bracts
flower heads
ray florets
disc florets
Erigeron canadensis
E. sumatrensis

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