Green milkweed (Asclepias viridis) when exposed ...

The image presents two distinct photographs of green milkweed flowers (Asclepias viridis), showcasing their appearance under normal daylight and when illuminated by a 365 nm ultraviolet (UV-A) blacklight.

* **Top Photograph (Daylight):**
* The top photograph captures the green milkweed flowers in their natural state, exposed to regular daylight.
* The flowers display vibrant green leaves and stems, with clusters of small, greenish-white flowers at the tips.
* No unusual or notable features are observed in this photograph.
* **Bottom Photograph (UV-A Blacklight):**
* In contrast, the bottom photograph depicts the same green milkweed flowers illuminated by a 365 nm ultraviolet (UV-A) blacklight.
* Under UV light, the flowers exhibit a striking transformation, with their green color deepening to a rich blue hue.
* The leaves and stems also appear more pronounced and vibrant under UV illumination.

In summary, the image effectively demonstrates the visual difference between green milkweed flowers when exposed to regular daylight versus when illuminated by a 365 nm ultraviolet (UV-A) blacklight. – AI vision