Yes, those are the Golden Berries of Wealth. A lot of us have clicked too fast and missed the description, so here it is:

Quote:

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You have discovered the Golden Berries of Wealth!

These magical berries have an effect that is little understood, but rest assured you will soon become rich from your nursery.

This effect is automatic and permanent.

The plant has been repotted in a golden pot and moved to your nursery.

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I think it would be great to be able to see the description again by clicking on the plant (in fact, I tried that the first time I played the game).