This is a closer view of the flower in the crown of the barrel cactus that I showed yesterday. Sometimes these cacti are called golden barrel cacti, and this photo shows why. Their flowers are golden, but so are the spikes.
Barrel cacti are usually about the size of a basketball. They often grow in partial shade at the base of larger plants, although we have a cluster of them the get full sun and they do well.
We we have photos of Costa Rica posted this week on our Viva la Voyage travel photo site.