best estimates best estimates source en:Global biodiversity species of plants Global Biodiversity Global Biodiversity best estimates global biodiversity species of plants Global Biodiversity biodiversity 1.6 million known species Global Biodiversity how many species the Earth hosts species of plants 1,6 млн. описанных биологических видов 1.9 million species severely threatened Global Biodiversity Global biodiversity Global Biodiversity varierer fra to millioner til tusen milliarder 1,6 млн. описаних біологічних видів best estimates how many species the Earth hosts species of plants