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Many urban canopies across U.S. cities are dominated by only a handful of tree types, putting them at risk of being wiped out ...

Hidden high in the White Mountains of eastern California, a gnarled, weathered tree quietly holds a staggering secret — it’s nearly 5,000 years old.

An orchid and the dwarf date palm are among those listed as critically endangered in the country’s first-ever Plant Red List ...

Can you have too many blooms in your garden? Absolutely not. Plant one or a combination of these trees for an outdoor space ...