Knowledge (XXG)

Iris pseudacorus

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grows to 100–150 cm (39–59 in), or a rare 2 m (6 ft 7 in) tall, with erect leaves up to 90 cm (35 in) long and 3 cm (1.2 in) broad. The flowers are bright yellow, 7–10 cm (2.8–3.9 in) across, with the typical iris form. The fruit is a dry
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which can create dense, monotypic stands, outcompeting other plants in the ecosystem. Where it is invasive, it is tough to remove on a large scale. Even ploughing the rhizomes is often ineffective. It has been banned in some areas but is still widely sold in others for use in gardens.
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Zhao, Huilin; Wang, Fen; Ji, Min (2015). "Brackish Eutrophic Water Treatment by Iris pseudacorus L.-Planted Microcosms: Physiological Responses of Iris pseudacorus L. to Salinity".
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plants survey conducted by the AgriLand project, which is supported by the UK Insect Pollinators Initiative. However, when number of flowers per floral unit, flower abundance, and
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were taken into account, it dropped out of the top 10 for most nectar per unit cover per year, as did all plants that placed in the top ten, with the exception of common comfrey,
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and often grows with it, though usually in shallower water. While it is primarily an aquatic or marginal plant, the rhizomes can survive prolonged dry conditions.
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Mohseni-Bandpei, A. (2010). "Nitrogen and phosphorus removal from wastewater by subsurface wetlands planted with Iris pseudacorus".
1313: 1042: 2317: 2307: 2254: 1862: 94: 1911: 612:(sweet flag), as they have a prominently veined mid-rib and sword-like shape. However, the two plants are not closely related. 2312: 2302: 2297: 2208: 1991: 1955: 1080: 2022: 1588: 1337: 2172: 1937: 1718: 1682: 743: 2213: 2159: 2040: 1986: 2292: 2076: 2164: 1276: 1254: 1183: 1106: 1378: 1054: 1831: 1700: 628: 620: 1826: 1733: 1605: 1068: 600: 1723: 203: 2287: 747: 246: 1880: 1643: 1574: 2259: 2063: 1777: 1510: 1475: 1133: 1094: 718: 219: 1818: 50: 2120: 1743: 1434: 1229: 1002:
This plant has been used as a form of water treatment since it can take up macronutrients (such as
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stands in western Scotland form a very important feeding and breeding habitat for the endangered
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grows best in very wet conditions, and is common in wetlands, where it tolerates submersion, low
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The plant was rated in second place for per day nectar production per flower in a
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means "false acorus", referring to the similarity of its leaves to those of
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rather than to a lily, based on the shape and yellow colour of the flower.
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Edible Wild Plants: A North American Field Guide to Over 200 Natural Foods
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4–7 cm (1.6–2.8 in) long, containing numerous pale brown seeds.
30:"Yellow iris" redirects here. For the short story by Agatha Christie, see 17: 2185: 2048: 1710: 1622: 1003: 984: 886: 866: 830: 806: 802: 735: 694:
is one of two iris species native to the United Kingdom, the other being
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It can also withstand high salinity levels in the water.
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Species of flowering plant in the iris family Iridaceae
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Laboratory, NOAA Great Lakes Environmental Research.
1235:. Royal Horticultural Society. July 2017. p. 53 1612: 1331:"Centre for Biological Control Annual Report 2019" 742:planting. The following cultivars have gained the 599:to Europe, western Asia and northwest Africa. Its 1182:. Conservation Grade. 2014-10-15. Archived from 1180:"Which flowers are the best source of nectar?" 1427:Elias, Thomas S.; Dykeman, Peter A. (2009) . 1402:Pierre Augustin Boissier de Sauvages (1756). 734:regions as an ornamental plant, with several 667:and water-dispersed seed. It fills a similar 8: 999:The plant's roots and leaves are poisonous. 1353:"9 Top Types of Iris for the Flower Garden" 1308:. London: Kyle Cathie Limited. p. 88. 1600: 1304:Spencer-Jones, Rae; Cuttle, Sarah (2005). 663:soils. The plant spreads quickly, by both 68: 49: 38: 1503:International Journal of Phytoremediation 1154:"Iris pseudacorus L. is an accepted name" 1299: 1297: 851: 1593:United States Department of Agriculture 1584:Germplasm Resources Information Network 1145: 1020: 283: 777:In some regions (including the US and 1329:Mostert, Esther; Weaver, Kim (eds.). 7: 2214:49ca3cfd-0108-4b9c-84a8-45c51dd7faba 2064:d9d4a236-effc-4a22-b7dd-e05f7d4eea96 967:Pierre Augustin Boissier de Sauvages 2283:IUCN Red List least concern species 1306:Wild Flowers of Britain and Ireland 1124:Flag of the Brussels-Capital Region 1405:Languedocien Dictionnaire François 25: 2165:urn:lsid:ipni.org:names:438992-1 1351:McIntosh, Jamie (21 June 2021). 1105: 1093: 1079: 1067: 1053: 1041: 1032: 1023: 93: 765:(with pale cream flowers) and 761:Other cultivars known include 1: 1589:Agricultural Research Service 1488:10.1016/j.ecoleng.2010.02.002 1408:(in French). pp. 153–154 1338:Centre for Biological Control 1523:10.1080/15226514.2014.981240 769:(with dark yellow flowers). 2343:Taxa named by Carl Linnaeus 797:is reported as invasive in 744:Royal Horticultural Society 2359: 2333:Medicinal plants of Europe 2323:Medicinal plants of Africa 29: 1230:"AGM Plants - Ornamental" 987:symbol may be related to 969:, an 18th-century French 276: 269: 252: 245: 90:Scientific classification 88: 66: 57: 48: 41: 2338:Plants described in 1753 2328:Medicinal plants of Asia 730:It is widely planted in 2318:Garden plants of Europe 2308:Garden plants of Africa 321:F. Delaroche ex Redoute 1468:Ecological Engineering 1277:"RHS Plant Selector - 1205:"RHS Plant Selector - 633: 625: 518:Vieusseuxia iridioides 2313:Garden plants of Asia 2303:Flora of Western Asia 2298:Flora of North Africa 1566:Plants for a Future: 748:Award of Garden Merit 631: 623: 510:Pseudo-iris palustris 486:Limnirion pseudacorus 1340:, Rhodes University. 1156:. theplantlist.org ( 719:Symphytum officinale 550:Xyridion pseudacorus 494:Limniris pseudacorus 1515:2015IJPhy..17..814Z 1480:2010EcEng..36..777Y 854: 542:Xyridion acoroideum 534:Xiphion pseudacorus 238:I. pseudacorus 60:Conservation status 32:The Regatta Mystery 852: 634: 626: 502:Moraea candolleana 2270: 2269: 2098:Open Tree of Life 1606:Taxon identifiers 1444:978-1-4027-6715-9 995:Toxicity and uses 955: 954: 704:Nectar production 700:(stinking iris). 697:Iris foetidissima 561: 560: 526:Xiphion acoroides 413:(Boreau) K.Richt. 83: 16:(Redirected from 2350: 2263: 2262: 2250: 2249: 2237: 2236: 2227: 2226: 2217: 2216: 2204: 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pseudacorus 224: 208: 98: 97: 77: 72: 71: 53: 43:Iris pseudacorus 39: 21: 2358: 2357: 2353: 2352: 2351: 2349: 2348: 2347: 2293:Flora of Europe 2273: 2272: 2271: 2266: 2258: 2253: 2245: 2240: 2232: 2230: 2222: 2220: 2212: 2207: 2199: 2197: 2189: 2184: 2176: 2171: 2163: 2158: 2150: 2145: 2137: 2132: 2124: 2119: 2111: 2109: 2101: 2096: 2088: 2085:Observation.org 2083: 2075: 2070: 2062: 2060: 2052: 2047: 2039: 2034: 2026: 2021: 2013: 2008: 2000: 1998: 1990: 1985: 1977: 1976:MichiganFlora: 1975: 1967: 1962: 1954: 1949: 1941: 1936: 1928: 1923: 1915: 1910: 1902: 1900: 1892: 1887: 1879: 1874: 1866: 1861: 1853: 1848: 1840: 1838: 1830: 1825: 1817: 1815: 1807: 1802: 1794: 1789: 1781: 1776: 1768: 1763: 1755: 1750: 1742: 1740: 1732: 1730: 1722: 1717: 1709: 1707: 1699: 1694: 1686: 1681: 1673: 1671: 1663: 1661: 1653: 1651: 1642: 1641: 1636: 1627: 1626: 1621: 1608: 1573: 1562: 1547: 1546: 1500: 1499: 1495: 1465: 1464: 1460: 1445: 1437:. p. 261. 1426: 1425: 1421: 1411: 1409: 1401: 1400: 1396: 1387: 1385: 1383:nas.er.usgs.gov 1376: 1375: 1371: 1361: 1359: 1350: 1349: 1345: 1333: 1328: 1327: 1323: 1316: 1303: 1302: 1295: 1285: 1283: 1275: 1274: 1270: 1260: 1258: 1253: 1252: 1248: 1238: 1236: 1232: 1228: 1227: 1223: 1213: 1211: 1203: 1202: 1198: 1189: 1187: 1178: 1177: 1173: 1163: 1161: 1152: 1151: 1147: 1142: 1120: 1113: 1110: 1101: 1098: 1089: 1084: 1075: 1072: 1063: 1058: 1049: 1046: 1037: 1028: 1019: 997: 983:applied to the 963: 861:First Observed 858:State/Province 775: 728: 706: 642:perennial plant 618: 586:flowering plant 557: 552: 544: 536: 528: 520: 512: 504: 496: 488: 480: 472: 460: 448: 436: 424: 412: 400: 388: 376: 364: 352: 344: 336: 328: 320: 312: 304: 296: 288: 282: 281: 265: 260: 254: 241: 222: 206: 92: 84: 73: 69: 62: 35: 28: 23: 22: 15: 12: 11: 5: 2356: 2354: 2346: 2345: 2340: 2335: 2330: 2325: 2320: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2275: 2274: 2268: 2267: 2265: 2264: 2251: 2247:wfo-0000783754 2238: 2228: 2218: 2205: 2195: 2182: 2169: 2156: 2143: 2130: 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682:I. pseudacorus 653:I. pseudacorus 617: 614: 609:Acorus calamus 559: 558: 556: 555: 547: 539: 531: 523: 515: 507: 499: 491: 483: 475: 463: 451: 439: 434:longiacuminata 427: 415: 403: 401:(Boreau) Nyman 391: 379: 367: 365:(Boreau) Nyman 355: 347: 342:Iris pallidior 339: 331: 323: 315: 307: 302:Iris bastardii 299: 294:Iris acoroides 291: 279: 278: 277: 274: 273: 267: 266: 261: 250: 249: 243: 242: 235: 233: 229: 228: 217: 213: 212: 201: 197: 196: 185: 181: 180: 173: 169: 168: 163: 159: 158: 153: 149: 148: 143: 136: 135: 130: 123: 122: 117: 110: 109: 104: 100: 99: 86: 85: 67: 64: 63: 58: 55: 54: 46: 45: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2355: 2344: 2341: 2339: 2336: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2280: 2278: 2261: 2256: 2252: 2248: 2243: 2239: 2235: 2229: 2225: 2219: 2215: 2210: 2206: 2202: 2196: 2192: 2187: 2183: 2179: 2174: 2170: 2166: 2161: 2157: 2153: 2148: 2144: 2140: 2135: 2131: 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New York: 1429: 1422: 1410:. Retrieved 1404: 1397: 1386:. Retrieved 1382: 1372: 1360:. Retrieved 1356: 1346: 1324: 1305: 1284:. Retrieved 1281:'Variegata'" 1278: 1271: 1261:25 September 1259:. Retrieved 1249: 1237:. Retrieved 1224: 1212:. Retrieved 1206: 1199: 1188:. Retrieved 1184:the original 1174: 1162:. Retrieved 1148: 1129:Fleur-de-lis 1112:Whole plants 1086: 1060: 1012: 1001: 998: 988: 980:fleur-de-lis 978: 964: 960:fleur-de-lis 959: 793: 792: 791: 779:South Africa 776: 766: 762: 760: 729: 717: 707: 695: 691: 690: 681: 679: 672: 652: 651: 635: 607: 603: 577: 573: 569: 564: 563: 562: 549: 541: 537:(L.) Schrank 533: 525: 517: 509: 501: 493: 485: 477: 469: 465: 457: 453: 445: 441: 433: 429: 421: 417: 409: 405: 397: 393: 385: 381: 373: 369: 361: 357: 349: 341: 333: 325: 317: 313:F. Delaroche 309: 301: 293: 285: 255: 253: 237: 236: 220: 204: 192: 188: 176: 139: 126: 113: 42: 36: 2010:NatureServe 1889:iNaturalist 1638:Wikispecies 1286:7 September 1134:Iris sawfly 977:, the name 799:Connecticut 726:Cultivation 671:to that of 616:Description 604:pseudacorus 574:yellow iris 570:yellow flag 553:(L.) Klatt 521:F.Delaroche 478:Iris sativa 374:acoriformis 362:acoriformis 156:Asparagales 133:Angiosperms 2277:Categories 2221:WisFlora: 2139:kew-322261 2134:Plant List 1731:Calflora: 1388:2022-06-14 1357:The Spruce 1190:2017-10-18 1140:References 1008:phosphorus 971:naturalist 853:US Spread 839:Washington 815:New Jersey 740:bog garden 640:flowering 638:herbaceous 624:Flower bud 578:water flag 458:ochroleuca 446:nyaradyana 334:Iris lutea 326:Iris flava 225:Laevigatae 184:Subgenus: 18:Water flag 1832:200028201 1741:Cal-IPC: 1453:244766414 843:Wisconsin 827:Tennessee 736:cultivars 732:temperate 714:phenology 686:corncrake 595:. It is 593:Iridaceae 497:(L.) Fuss 489:(L.) Opiz 410:bastardii 398:bastardii 386:acoroides 232:Species: 200:Section: 166:Iridaceae 103:Kingdom: 2209:VicFlora 2198:VASCAN: 2191:16600257 2186:Tropicos 2110:PalDat: 2049:NSWFlora 2015:2.149941 1930:10456945 1917:438992-1 1708:BioLib: 1623:Wikidata 1539:30542002 1531:25529785 1435:Sterling 1239:13 March 1164:14 April 1118:See also 1004:nitrogen 985:heraldic 831:Virginia 807:Maryland 803:Delaware 783:invasive 470:submersa 271:Synonyms 216:Series: 209:Limniris 193:Limniris 162:Family: 146:Monocots 80:IUCN 3.1 2260:1416223 1987:MoBotPF 1855:5298231 1765:Ecocrop 1511:Bibcode 1476:Bibcode 1412:27 July 1362:29 July 1214:24 June 1048:Closeup 1017:Gallery 835:Vermont 665:rhizome 647:capsule 588:in the 582:species 580:, is a 505:Spreng. 461:Peterm. 422:citrina 408:subsp. 372:subsp. 329:Tornab. 172:Genus: 152:Order: 107:Plantae 78: ( 2147:PLANTS 2061:NZOR: 1992:281137 1969:163999 1943:114983 1842:IRIPSE 1839:FoIO: 1819:iripse 1816:FEIS: 1809:186664 1783:491653 1724:126458 1696:ARKive 1688:171918 1675:160658 1672:APDB: 1652:AoFP: 1629:Q21173 1537:  1529:  1451:  1441:  1312:  1074:Flower 845:, and 823:Oregon 680:Large 661:anoxic 659:, and 597:native 590:family 568:, the 513:Medik. 449:Prodán 437:Prodán 305:Boreau 289:Boreau 191:subg. 2255:WoRMS 2231:WoI: 2103:43059 2072:NZPCN 2041:82213 1999:NAS: 1956:43194 1925:IRMNG 1901:IPA: 1894:47779 1881:20385 1804:EUNIS 1796:IRIPS 1757:3PZZR 1711:42065 1662:APA: 1535:S2CID 1334:(PDF) 1257:. RHS 1233:(PDF) 1100:Fruit 951:2005 941:1909 931:1954 921:2013 911:1882 901:2008 891:1932 881:1982 871:2009 674:Typha 669:niche 636:This 632:Seeds 576:, or 481:Mill. 473:Glück 456:var. 425:Hook. 420:var. 396:var. 384:var. 360:var. 353:Pers. 297:Spach 221:Iris 207:sect. 205:Iris 140:Clade 127:Clade 114:Clade 2224:3942 2201:6184 2178:9334 2160:POWO 2152:IRPS 2121:PfaF 2090:6903 2077:3315 2036:NCBI 2002:1115 1979:1475 1964:IUCN 1951:ITIS 1912:IPNI 1904:5853 1876:GRIN 1863:GISD 1850:GBIF 1791:EPPO 1770:6955 1734:4358 1719:BOLD 1683:APNI 1665:4314 1655:1975 1527:PMID 1449:OCLC 1439:ISBN 1414:2013 1364:2021 1310:ISBN 1288:2020 1263:2020 1241:2018 1216:2013 1166:2015 1006:and 973:and 763:Alba 345:Hill 337:Lam. 223:ser. 189:Iris 177:Iris 2242:WFO 2234:271 2173:RHS 2023:NBN 1938:ISC 1868:873 1827:FNA 1778:EoL 1752:CoL 1519:doi 1484:doi 750:: 746:'s 584:of 468:f. 444:f. 432:f. 2279:: 2257:: 2244:: 2211:: 2188:: 2175:: 2162:: 2149:: 2136:: 2123:: 2100:: 2087:: 2074:: 2051:: 2038:: 2025:: 2012:: 1989:: 1966:: 1953:: 1940:: 1927:: 1914:: 1891:: 1878:: 1865:: 1852:: 1829:: 1806:: 1793:: 1780:: 1767:: 1754:: 1721:: 1698:: 1685:: 1640:: 1625:: 1591:, 1587:. 1581:. 1533:. 1525:. 1517:. 1507:17 1505:. 1482:. 1472:36 1470:. 1447:. 1381:. 1355:. 1336:. 1296:^ 947:WI 937:VT 927:PA 917:OH 907:NY 897:MN 887:MI 877:IN 867:IL 849:. 841:, 837:, 833:, 829:, 825:, 821:, 817:, 813:, 809:, 805:, 801:, 722:. 710:UK 688:. 657:pH 572:, 263:L. 142:: 129:: 116:: 1595:. 1579:" 1575:" 1541:. 1521:: 1513:: 1490:. 1486:: 1478:: 1455:. 1416:. 1391:. 1366:. 1318:. 1290:. 1265:. 1243:. 1218:. 1209:" 1193:. 1168:. 82:) 34:. 20:)

Index

Water flag
The Regatta Mystery

Conservation status
Least Concern
IUCN 3.1
Scientific classification
Edit this classification
Plantae
Tracheophytes
Angiosperms
Monocots
Asparagales
Iridaceae
Iris
Iris subg. Limniris
Iris sect. Limniris
Iris ser. Laevigatae
Binomial name
L.
Synonyms
species
flowering plant
family
Iridaceae
native
specific epithet
Acorus calamus

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