| Equisetum telmateia Ehrh. |
| Native | Endemic | Ploidy |
| Y | N | 2x |
| Azores | Madeira | Canaries | Cape Verde |
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| S | M | T | G | J | P | F | L | C | M | D | P | S | L | F | C | T | G | H | P | A | V | L | N | B | M | T | F | R | S |
| X | X | X | X | ? | X | X | X | X | |||||||||||||||||||||
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