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The star cactus [Astrophytum asterias] counts among the lightest of the cactus plants. It reaches a mature height of 2 inches/5 centimeters, and a mature spread of 5 inches/13 centimeters. It's difficult to weigh, because most of it's located underground. But during the dormant season or drought, the cactus becomes an almost paper thin, flat disc.

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15y ago

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