Name: Ähriges Tausendblatt (DE); Spiked watermilfoil, Eurasian water-milfoil (EN); Filigrana de agua (ES)
Distribution: Iceland; England (England, Wales, Scotland, Outer Hebrides, Orkney Isl., Shetland Isl., Isle of Man); Ireland (Ireland, Northern Ireland); Denmark; Norway; Sweden; Finland; Netherlands; Belgium; Luxembourg; Germany (Brandenburg, Berlin, Baden-Württemberg, Bayern, Hessen, Hamburg, Mecklenburg-Vorpommern, Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Schleswig-Holstein, Saarland, Sachsen, Sachsen-Anhalt, Thüringen); Switzerland; ?Liechtenstein; Austria; Poland; Czech Republic; Slovakia; Hungary; Portugal; Spain; Baleares; France; Channel Isl. (Alderney [I], Guernsey, Jersey); Corsica; Sardinia; Italy; Sicily; Malta; Slovenia; Croatia; Bosnia & Hercegovina; Montenegro; Serbia; Kosovo; North Macedonia; Albania; Romania; Bulgaria; European Turkey; European Turkey; Greece (scattered mainland); Crete; Estonia; Latvia; Lithuania; Belarus; C-European Russia; E-European Russia; N-European Russia; W-European Russia; Ukraine; Crimea; Morocco; Algeria; Tunisia; Egypt (Great Southwestern Desert, NE-Egypt); Canary Isl. (La Palma, Tenerife, Gran Canaria, Hierro); Cameroon; Chad; Sudan; ?Ethiopia; Eritrea; Tanzania; Angola; Zambia; Malawi; Zimbabwe; Namibia; Botswana; South Africa (Limpopo, North-West Prov., Gauteng, Mpulamanga, Free State, KwaZulu-Natal, N-Cape Prov., W-Cape Prov., E-Cape Prov.); Siberia (Altai, Irkutsk, Krasnoyarsk, Tuva, W-Siberia, Yakutia); Russian Far East (Khabarovsk, Kuril Isl., Primorye, Sakhalin); Kazakhstan; Turkmenistan; Uzbekistan; Kyrgyzstan; Tajikistan; Northern Caucasus; Georgia [Caucasus]; Armenia; ?Azerbaijan; East Aegaean Isl. (Lesvos, Samos, Rhodos); Turkey (E-Anatolia, Inner Anatolia, N-Anatolia, NE-Anatolia, NW-Anatolia: Bithynia, S-Anatolia, SE-Anatolia, SE-Anatolia: Mesopotamian Anatolia); Iraq (SE-Iraq); Iran (Iranian Aserbaijan, S-Iran, W-Iran); Afghanistan (Bamyan, Ghazni, Kabul, Kandahar, Logar, Parwan); Lebanon (Antilebanon, C-Lebanon); Syria (NW-Syria); Israel (Rift Valley); Jordania (W-Jordania); Saudi Arabia (Asir); China (widespread); Mongolia; North Korea; South Korea; Japan (Hokkaido, Honshu, Shikoku, Kyushu); Ryukyu Isl.; Taiwan; Pakistan (Baluchistan, Quetta, Pakistani Punjab, Baltistan, Skardu); Nepal; Bhutan; N-India (Assam, Jammu & Kashmir, Madhya Pradesh, Punjab, Rajasthan, Uttarakhand); Thailand; Vietnam; N-Sumatra; Philippines (Mindanao); Alaska [I]; Canada [I] (British Columbia [I], New Brunswick [I], Ontario [I], Québec [I]); USA [I] (Alabama [I], Arkansas [I], Arizona [I], California [I], Colorado [I], Connecticut [I], Delaware [I], Florida [I], Georgia [I], Iowa [I], Illinois [I], Indiana [I], Kentucky [I], Louisiana [I], Massachusetts [I], Maryland [I], Michigan [I], Minnesota [I], Missouri [I], Mississippi [I], Montana [I], North Carolina [I], North Dakota [I], Nebraska [I], New Hampshire [I], New Jersey [I], New Mexico [I], New York [I], Ohio [I], Oklahoma [I], Oregon [I], Pennsylvania [I], South Carolina [I], South Dakota [I], Tennessee [I], Texas [I], Utah [I], Virginia [I], Vermont [I], Washington State [I], Wisconsin [I], West Virginia [I]); Mexico [I]
10 DEN FIN GRB ICE IRE NOR SWE 11 AUT BGM CZE GER HUN LUX NET POL SLO SWI 12 BAL CIS COR FRA POR SAR SPA 13 ALB BIH BUL CRO GRC ITA KOS KRI MLT MNT NMA ROM SIC SLV SRB TUE 14 BLR EST KRY LAT LIT RUS UKR 20 ALG EGY MOR TUN 21 CNY 23 CMN 24 CHA ERI SUD 25 TAN 26 ANG MLW ZAM ZIM 27 BOT NAM SAF 30 SIB 31 RFE 32 KAZ KGZ TKM TZK UZB 33 ARM GEO NCS 34 AFG EAI IRN IRQ ISR JOR LEB SYR TUR 35 SAU 36 CHI 37 MON 38 JAP KOR NKO NNS TAI 40 BHU IND NEP PAK 41 THA VIE 42 PHI SUM 70 ask 71 cdn 72 cdn 73 usa 74 usa 75 usa 76 usa 77 usa 78 usa 79 mex
Remarks: there is widespread hybridization with M. sibiricum in North America
Synonyms: hidden
= Myriophyllum spicatum var. baicalense Chepinoga; Konspekt Fl. Irkutsk. Obl. 185 (2008)
= Myriophyllum verticillatum subsp. spicatum (L.) Bonnier & Layens; Tabl. Syn. Pl. Vasc. France 105 (1894)
= Myriophyllum verticillatum var. spicatum (L.) Jess.; Deut. Excurs.-Fl. 313 (1879)
= Myriophyllum spicatum var. majus Hartm.; Handb. Skand. Fl. 340 (1820)
= Myriophyllum spicatum var. minus Gray; Nat. Arr. Brit. Pl. 2: 557 (1821 publ. 1822)
= Myriophyllum spicatum var. tenellum Hartm.; Handb. Skand. Fl. 340 (1820)