Question: How many tree species are listed when the total plant species is 258?
SQL: SELECT "Tree species" FROM "1-16577990-1" WHERE "Total plant species" = 258.0;

Question: How many tree species are there when the total plant species is 113?
SQL: SELECT COUNT("Tree species") FROM "1-16577990-1" WHERE "Total plant species" = 113.0;

Question: What is the size of Itwara central forest reserve?
SQL: SELECT MIN("Size in km²") FROM "1-16577990-1" WHERE "Central Forest Reserve" = 'Itwara';

Question: How many tree species are in the Kitechura reserve?
SQL: SELECT "Tree species" FROM "1-16577990-1" WHERE "Central Forest Reserve" = 'Kitechura';