In shallow streams and ponds those long, swordlike leaves emerge from the water. When back-lit the conductive tissues are visible, the separations between the superposed long vascular cells show as darker spots.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2lxFt6pKKR81HLKg8IH_pVRh4uL-M559Cfk9TNS6eM2tYn0ueemGJMdaPhAQ_1-w4l5vnpt4zymHlIgRtKSS6yXJtnMA5yf_uvp7S5ZfyDp1YDd9Zqef4DTWVTG2hXbKBPeChYsfRfcc/s280/iris+pseudacorus%252C+araign%25C3%25A9e-116138%2526ala-600-8ss.jpg)
The flowers look very much like the irises found in gardens.