| argentina | | juncus arcticus var. mexicanus | varietas | 1 | 0 |
| australia | | juncus oxycarpus | species | 1 | 0 |
| australia | | juncus subsecundus | species | 2 | 0 |
| austria | | juncus biglumis | species | 4 | 0 |
| austria | | oreojuncus monanthos | species | 3 | 0 |
| canada | | juncus brevicaudatus | species | 2 | 0 |
| canada | | juncus longistylis | species | 2 | 0 |
| canada | | juncus nevadensis | species | 1 | 0 |
| canada | | juncus parryi | species | 2 | 0 |
| canada | alberta | juncus longistylis | species | 1 | 0 |
| canada | alberta | juncus nevadensis | species | 1 | 0 |
| canada | british columbia | juncus acuminatus | species | 1 | 0 |
| canada | british columbia | juncus alpinoarticulatus | species | 1 | 0 |
| canada | british columbia | juncus anthelatus | species | 1 | 0 |
| canada | british columbia | juncus articulatus | species | 1 | 0 |
| canada | british columbia | juncus balticus | species | 1 | 0 |
| canada | british columbia | juncus bolanderi | species | 1 | 0 |
| canada | british columbia | juncus breweri | species | 1 | 0 |
| canada | british columbia | juncus bufonius | species | 1 | 0 |
| canada | british columbia | juncus bulbosus | species | 2 | 0 |
| canada | british columbia | juncus canadensis | species | 1 | 0 |
| canada | british columbia | juncus castaneus | species | 1 | 0 |
| canada | british columbia | juncus compressus | species | 1 | 0 |
| canada | british columbia | juncus conglomeratus | species | 1 | 0 |
| canada | british columbia | juncus covillei | species | 3 | 0 |
| canada | british columbia | juncus drummondii | species | 1 | 0 |
| canada | british columbia | juncus dudleyi | species | 1 | 0 |
| canada | british columbia | juncus effusus | species | 1 | 0 |
| canada | british columbia | juncus ensifolius | species | 7 | 0 |
| canada | british columbia | juncus falcatus | species | 6 | 0 |
| canada | british columbia | juncus filiformis | species | 2 | 0 |
| canada | british columbia | juncus gerardii | species | 1 | 0 |
| canada | british columbia | juncus haenkei | species | 1 | 0 |
| canada | british columbia | juncus hesperius | species | 1 | 0 |
| canada | british columbia | juncus interior | species | 1 | 0 |
| canada | british columbia | juncus laccatus | species | 1 | 0 |
| canada | british columbia | juncus longistylis | species | 1 | 0 |
| canada | british columbia | juncus mertensianus | species | 1 | 0 |
| canada | british columbia | juncus nodosus | species | 1 | 0 |
| canada | british columbia | juncus occidentalis | species | 1 | 0 |
| canada | british columbia | juncus oxymeris | species | 2 | 0 |
| canada | british columbia | juncus parryi | species | 1 | 0 |
| canada | british columbia | juncus pelocarpus | species | 1 | 0 |
| canada | british columbia | juncus regelii | species | 1 | 0 |
| canada | british columbia | juncus stygius | species | 1 | 0 |
| canada | british columbia | juncus supiniformis | species | 1 | 0 |
| canada | british columbia | juncus tenuis | species | 1 | 0 |
| canada | british columbia | juncus tracyi | species | 1 | 0 |
| canada | british columbia | juncus vaseyi | species | 1 | 0 |
| canada | new brunswick | juncus effusus | species | 1 | 0 |
| canada | new brunswick | juncus gerardii | species | 72 | 0 |
| canada | northwest territories | juncus arcticus | species | 3 | 0 |
| canada | northwest territories | juncus biglumis | species | 6 | 0 |
| canada | northwest territories | juncus castaneus subsp. leucochlamys | subspecies | 2 | 0 |
| canada | northwest territories | juncus drummondii | species | 2 | 0 |
| canada | northwest territories | juncus dudleyi | species | 2 | 0 |
| canada | northwest territories | juncus triglumis var. albescens | varietas | 3 | 0 |
| canada | nova scotia | juncus balticus | species | 1 | 0 |
| canada | nova scotia | juncus canadensis | species | 1 | 0 |
| canada | nova scotia | juncus marginatus | species | 1 | 0 |
| canada | nova scotia | juncus pelocarpus | species | 2 | 0 |
| canada | nunavut | juncus arcticus | species | 7 | 0 |
| canada | nunavut | juncus biglumis | species | 3 | 0 |
| canada | nunavut | juncus castaneus subsp. leucochlamys | subspecies | 5 | 0 |
| canada | nunavut | juncus triglumis var. albescens | varietas | 5 | 0 |
| canada | nunavut | oreojuncus trifidus | species | 1 | 0 |
| canada | ontario | juncus alpinoarticulatus | species | 1 | 0 |
| canada | ontario | juncus articulatus | species | 1 | 0 |
| canada | ontario | juncus brevicaudatus | species | 4 | 0 |
| canada | ontario | juncus bufonius | species | 1 | 0 |
| canada | ontario | juncus compressus | species | 2 | 0 |
| canada | ontario | juncus dudleyi | species | 7 | 0 |
| canada | ontario | juncus effusus | species | 8 | 0 |
| canada | ontario | juncus inflexus | species | 2 | 0 |
| canada | ontario | juncus interior | species | 2 | 0 |
| canada | ontario | juncus longistylis | species | 6 | 0 |
| canada | ontario | juncus sp. bioug24048-b02 | species | 1 | 0 |
| canada | ontario | juncus sp. bioug24048-c02 | species | 1 | 0 |
| canada | ontario | juncus sp. bioug24048-h03 | species | 1 | 0 |
| canada | ontario | juncus tenuis | species | 7 | 0 |
| canada | ontario | juncus torreyi | species | 4 | 0 |
| canada | ontario | juncus vaseyi | species | 1 | 0 |
| canada | quebec | juncus brevicaudatus | species | 1 | 0 |
| canada | quebec | juncus bufonius | species | 1 | 0 |
| canada | quebec | juncus dudleyi | species | 1 | 0 |
| canada | quebec | juncus effusus | species | 1 | 0 |
| canada | quebec | juncus filiformis | species | 1 | 0 |
| canada | saskatchewan | juncus longistylis | species | 2 | 0 |
| canada | saskatchewan | juncus nevadensis | species | 2 | 0 |
| canada | yukon | juncus balticus | species | 1 | 0 |
| canada | yukon | juncus castaneus subsp. leucochlamys | subspecies | 1 | 0 |
| canada | yukon | juncus filiformis | species | 1 | 0 |
| canada | yukon | juncus mertensianus | species | 2 | 0 |
| canada | yukon | juncus nodosus | species | 1 | 0 |
| chile | | juncus arcticus var. mexicanus | varietas | 1 | 0 |
| china | | juncus alatus | species | 2 | 0 |
| china | | juncus allioides | species | 1 | 0 |
| china | | juncus amplifolius | species | 1 | 0 |
| china | | juncus diastrophanthus | species | 4 | 0 |
| china | | juncus effusus | species | 8 | 0 |
| china | | juncus himalensis | species | 16 | 0 |
| china | | juncus potaninii | species | 2 | 0 |
| china | | juncus setchuensis | species | 3 | 0 |
| china | | juncus sikkimensis | species | 2 | 0 |
| czech republic | | juncus capensis | species | 2 | 0 |
| czech republic | | juncus covillei | species | 3 | 0 |
| czech republic | | juncus ensifolius | species | 2 | 0 |
| czech republic | | juncus lomatophyllus | species | 3 | 0 |
| czech republic | | juncus oxymeris | species | 2 | 0 |
| czech republic | | juncus squarrosus | species | 4 | 0 |
| denmark | | juncus maritimus | species | 4 | 0 |
| denmark | | juncus pygmaeus | species | 1 | 0 |
| denmark | | juncus subnodulosus | species | 2 | 0 |
| ecuador | | juncus capillaceus | species | 2 | 0 |
| egypt | | juncus rigidus | species | 1 | 0 |
| finland | | juncus alpinoarticulatus | species | 2 | 0 |
| finland | | juncus balticus | species | 2 | 0 |
| france | | juncus capitatus | species | 1 | 0 |
| germany | | juncus effusus | species | 1 | 0 |
| greenland | | juncus biglumis | species | 15 | 0 |
| greenland | | juncus castaneus subsp. leucochlamys | subspecies | 6 | 0 |
| greenland | | juncus triglumis var. albescens | varietas | 4 | 0 |
| honduras | | juncus dichotomus | species | 1 | 0 |
| iceland | | oreojuncus trifidus | species | 2 | 0 |
| india | | juncus membranaceus | species | 2 | 0 |
| india | | juncus turkestanicus | species | 4 | 0 |
| japan | | juncus decipiens | species | 1 | 0 |
| japan | | juncus effusus | species | 1 | 0 |
| japan | hiroshima prefecture | juncus wallichianus | species | 2 | 0 |
| japan | hokkaido prefecture | juncus mertensianus | species | 3 | 0 |
| japan | kumamoto prefecture | juncus effusus | species | 5 | 0 |
| japan | okayama prefecture | juncus decipiens | species | 3 | 0 |
| japan | toyama prefecture | juncus filiformis | species | 1 | 0 |
| jordan | | juncus acutus | species | 2 | 0 |
| kenya | rift valley province | juncus dregeanus | species | 16 | 0 |
| kuwait | | juncus rigidus | species | 3 | 0 |
| morocco | | juncus alpinoarticulatus | species | 2 | 0 |
| morocco | | juncus fontanesii subsp. brachyanthus | subspecies | 1 | 0 |
| new zealand | | juncus effusus | species | 1 | 0 |
| new zealand | | juncus tenuis | species | 1 | 0 |
| norway | | juncus articulatus | species | 3 | 0 |
| norway | | juncus biglumis | species | 2 | 0 |
| norway | | juncus castaneus | species | 3 | 0 |
| norway | | juncus triglumis | species | 2 | 0 |
| norway | svalbard | juncus biglumis | species | 21 | 0 |
| peru | | juncus imbricatus | species | 2 | 0 |
| poland | | juncus ranarius | species | 2 | 0 |
| poland | mazovia province | juncus bufonius | species | 1 | 0 |
| poland | mazovia province | juncus conglomeratus | species | 1 | 0 |
| poland | mazovia province | juncus effusus | species | 1 | 0 |
| poland | mazovia province | juncus tenuis | species | 1 | 0 |
| portugal | | juncus acutus | species | 2 | 0 |
| portugal | | juncus articulatus | species | 2 | 0 |
| portugal | | juncus bufonius | species | 2 | 0 |
| portugal | | juncus bulbosus | species | 2 | 0 |
| portugal | | juncus capitatus | species | 2 | 0 |
| portugal | | juncus conglomeratus | species | 2 | 0 |
| portugal | | juncus effusus | species | 2 | 0 |
| portugal | | juncus maritimus | species | 2 | 0 |
| portugal | | juncus tenuis | species | 2 | 0 |
| russia | | juncus prominens | species | 4 | 0 |
| russia | altai krai | juncus biglumis | species | 2 | 0 |
| russia | krasnoyarsk krai | juncus biglumis | species | 2 | 0 |
| russia | sakha republic | juncus biglumis | species | 2 | 0 |
| south africa | | juncus capitatus | species | 1 | 0 |
| spain | | juncus subulatus | species | 4 | 0 |
| svalbard and jan mayen | svalbard | juncus biglumis | species | 8 | 0 |
| sweden | | juncus articulatus | species | 1 | 0 |
| sweden | | juncus balticus | species | 4 | 0 |
| sweden | | juncus biglumis | species | 2 | 0 |
| sweden | | juncus bulbosus | species | 3 | 0 |
| sweden | | juncus compressus | species | 2 | 0 |
| sweden | | juncus conglomeratus | species | 2 | 0 |
| sweden | | juncus effusus | species | 4 | 0 |
| sweden | | juncus filiformis | species | 2 | 0 |
| sweden | | juncus stygius | species | 2 | 0 |
| sweden | | oreojuncus trifidus | species | 54 | 0 |
| switzerland | geneva region | juncus bufonius | species | 4 | 0 |
| switzerland | geneva region | juncus effusus | species | 2 | 0 |
| switzerland | geneva region | juncus inflexus | species | 2 | 0 |
| switzerland | geneva region | juncus tenuis | species | 2 | 0 |
| united kingdom | | juncus acutiflorus | species | 1 | 0 |
| united kingdom | | juncus acutus | species | 4 | 0 |
| united kingdom | | juncus alpinoarticulatus | species | 13 | 0 |
| united kingdom | | juncus ambiguus | species | 2 | 0 |
| united kingdom | | juncus articulatus | species | 1 | 0 |
| united kingdom | | juncus balticus | species | 5 | 0 |
| united kingdom | | juncus biglumis | species | 4 | 0 |
| united kingdom | | juncus bufonius | species | 5 | 0 |
| united kingdom | | juncus bulbosus | species | 4 | 0 |
| united kingdom | | juncus capitatus | species | 2 | 0 |
| united kingdom | | juncus castaneus | species | 9 | 0 |
| united kingdom | | juncus compressus | species | 4 | 0 |
| united kingdom | | juncus conglomeratus | species | 4 | 0 |
| united kingdom | | juncus effusus | species | 3 | 0 |
| united kingdom | | juncus filiformis | species | 1 | 0 |
| united kingdom | | juncus foliosus | species | 3 | 0 |
| united kingdom | | juncus gerardii | species | 4 | 0 |
| united kingdom | | juncus inflexus | species | 3 | 0 |
| united kingdom | | juncus maritimus | species | 4 | 0 |
| united kingdom | | juncus pygmaeus | species | 1 | 0 |
| united kingdom | | juncus squarrosus | species | 3 | 0 |
| united kingdom | | juncus subnodulosus | species | 1 | 0 |
| united kingdom | | juncus triglumis | species | 1 | 0 |
| united kingdom | | oreojuncus trifidus | species | 10 | 0 |
| united kingdom | scotland | juncus biglumis | species | 2 | 0 |
| united states | | juncus arcticus var. mexicanus | varietas | 2 | 0 |
| united states | | juncus bufonius | species | 4 | 0 |
| united states | | juncus cooperi | species | 1 | 0 |
| united states | | juncus coriaceus | species | 2 | 0 |
| united states | | juncus debilis | species | 2 | 0 |
| united states | | juncus drummondii | species | 2 | 0 |
| united states | | juncus dudleyi | species | 2 | 0 |
| united states | | juncus hallii | species | 2 | 0 |
| united states | | juncus interior | species | 2 | 0 |
| united states | | juncus megacephalus | species | 2 | 0 |
| united states | | juncus mertensianus | species | 1 | 0 |
| united states | | juncus nodosus | species | 1 | 0 |
| united states | | juncus pauciflorus | species | 2 | 0 |
| united states | | juncus polycephalus | species | 1 | 0 |
| united states | | juncus regelii | species | 2 | 0 |
| united states | | juncus repens | species | 2 | 0 |
| united states | | juncus scirpoides | species | 3 | 0 |
| united states | | juncus torreyi | species | 1 | 0 |
| united states | | juncus uncialis | species | 3 | 0 |
| united states | | juncus xiphioides | species | 3 | 0 |
| united states | alaska | juncus mertensianus | species | 2 | 0 |
| united states | california | juncus balticus | species | 1 | 0 |
| united states | florida | juncus dichotomus | species | 1 | 0 |
| united states | florida | juncus effusus | species | 1 | 0 |
| united states | florida | juncus marginatus | species | 1 | 0 |
| united states | florida | juncus repens | species | 1 | 0 |
| united states | florida | juncus scirpoides | species | 1 | 0 |
| united states | idaho | juncus drummondii | species | 4 | 0 |
| united states | idaho | juncus parryi | species | 5 | 0 |
| united states | michigan | juncus effusus | species | 1 | 0 |
| united states | michigan | juncus inflexus | species | 1 | 0 |
| united states | wisconsin | juncus dudleyi | species | 1 | 0 |
| united states | wisconsin | juncus tenuis | species | 2 | 0 |