Scientists discover that fast-changing cactus flowers, not size or pollinators, are behind the rapid evolution of new cactus species.

How well do you know the three different holiday cacti? Can you name them? Holiday Cacti are three different cacti succulents that have leafless, green jointed segmented stems (plylloclades), that are ...

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The joy of the holiday season can feel fleeting. There’s a blur of get-togethers, cooking, shopping — and then, suddenly, it’s all over. A plant that’s commonly used for decorating this time of year, ...