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The following list shows all countries for which pollen information is available. It lists which plant types and plant species are available for each country.
Region code Country/Region Supported Types Supported Plants AD Andorra trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort AL Albania trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort AM Armenia trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort AR Argentina grass grasses AT Austria trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort AU Australia trees, grass grasses, cypress pine BA Bosnia & Herzegovina trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort BE Belgium trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort BG Bulgaria trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort BR Brazil grass grasses BY Belarus trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort CA Canada grass, weeds grasses, ragweed, elm, oak, alder, pine, cottonwood, birch, ash, maple CH Switzerland trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort CL Chile grass grasses CN China grass grasses CY Cyprus trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort CZ Czechia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort DE Germany trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort DK Denmark trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort EE Estonia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort EG Egypt trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort ES Spain trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort ET Ethiopia grass grasses FI Finland trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort FR France trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort GB United Kingdom trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort GE Georgia trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort GI Gibraltar trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort GR Greece trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort HK Hong Kong grass grasses HR Croatia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort HU Hungary trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort IE Ireland trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort IL Israel trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort IT Italy trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort JO Jordan trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort JP Japan grass, trees grasses, Japanese cedar, Japanese cypress KR South Korea grass grasses LI Liechtenstein trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort LT Lithuania trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort LU Luxembourg trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort LV Latvia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort MD Moldova trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort ME Montenegro trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort MK North Macedonia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort MN Mongolia grass grasses MT Malta trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort MX Mexico grass grasses NL Netherlands trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort NO Norway trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort NP Nepal grass grasses NZ New Zealand grass grasses PK Pakistan grass grasses PL Poland trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort PT Portugal trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort RO Romania trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort RS Serbia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort RU Russia trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort SA Saudi Arabia trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort SE Sweden trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort SI Slovenia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort SK Slovakia trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort TR Turkey trees, grass, weeds birch, olive, grasses, ragweed, alder, mugwort UA Ukraine trees, grass, weeds hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, mugwort US United States trees, grass, weeds maple, elm, cottonwood, alder, birch, ash, pine, oak, juniper, grasses, ragweed ZA South Africa grass grassesExcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This page provides a comprehensive list of countries with available pollen information."],["The list specifies which plant types (trees, grasses, weeds) and specific plant species are monitored for pollen in each country."],["Pollen data is available for a variety of regions, including North America, South America, Europe, Asia, Africa, and Australia."],["While many countries track pollen from trees, grasses, and weeds, some focus solely on grass or grass and trees."],["Common plants monitored for pollen include hazel, alder, ash, birch, cottonwood, oak, olive, pine, grasses, ragweed, and mugwort, among others, with specific plants varying by region."]]],["Pollen information is available for various countries, detailing supported plant types and species. Most countries, such as Andorra, Albania, and Austria, include trees, grass, and weeds, with species like hazel, alder, birch, oak, olive, pine, grasses, ragweed, and mugwort. Some regions, like Argentina and Brazil, solely list grasses. Canada and the US have unique species listed. Some regions like Saudi Arabia or Russia, show only a limited range of supported trees, grasses and weeds.\n"]]
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