Echinocactus grusonii, known in English as "golden barrel cactus", "golden ball", or "mother-in-law's cushion", and in French as coussin de belle-mère, is a fast-growing roughly spherical cactus native to Mexico. Golden barrel cactus can reach a diameter of up to a metre. Although it is popular in cultivation because it is easy to grow, it has become rare in its native habitat. The flowers, the remains of which can be seen in the photo above, are yellow.
In Toronto, golden barrel cactus may be grown as a houseplant or in a greenhouse. This photo was taken in the Allan Gardens conservatory.
Here are lists of all the plants mentioned in this blog.
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