A few years ago I planted a variety of seeds from citrus fruits of orange, lemon, lime, grapefruit and mandarine. Only a few of them grew into big plants, and now I have 2-4 large plants, but I don't know which of them are which. Can I tell from the shapes of the leaves which citrus plant it is?

Here's a group photo with some unidentified bonus plant in the middle:

The two on the left are growing from the same spot, so they could be from the same seed. And the unknown guest plant in front is growing from the same pot. The more bushy guy on the right has its pot all to himself. After some image searching and seeing similar leaves on posts about citrus plants, I figured that the mystery plant could also be a citrus, but I'm not sure.

  • Break a leaf off, snap it in half and smell it. This will help with one more characteristic to narrow it down. – Viv Oct 24 '16 at 2:46
  • They all smell pretty citrusy to me but not exactly like a lemon, orange or grapefruit. It's a bit different and I can't tell exactly what it's like. – user1306322 Oct 24 '16 at 7:18

Although I suspect it will be very tough to do, the Citrus ID web page might be your best resource outside a citrus farmer/fanatic.

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