Blechnum patersonii
| Blechnum patersonii | |
|---|---|
 | |
| Royal Botanic Gardens, Sydney | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pteridophyta |
| Class: | Pteridopsida |
| Order: | Athyriales |
| Family: | Blechnaceae |
| Genus: | Blechnum |
| Species: | B. patersonii |
| Binomial name | |
| Blechnum patersonii | |
The strap water-fern (Blechnum patersonii) is a fern in the genus Blechnum.