Passion flower (Passiflora foetida) when exposed to ...

The image presents two photographs of a passion flower (Passiflora foetida), showcasing its distinctive appearance under regular daylight and ultraviolet light exposure.

**Photograph 1: Daylight Exposure**

* The top photograph depicts the passion flower as it appears in regular daylight.
* The flower exhibits a vibrant purple color with yellow accents on its center, surrounded by long, thin tendrils.
* A green stem is visible to the left of the flower.

**Photograph 2: Ultraviolet Light Exposure**

* The bottom photograph shows the same passion flower illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park.
* Under UV light, the purple color deepens and becomes more intense, while the yellow accents remain unchanged.
* The long, thin tendrils surrounding the center of the flower glow brightly in pinkish-purple hues.

**Key Observations**

* The passion flower's appearance changes significantly when exposed to ultraviolet light, with a deeper purple coloration and glowing tendrils.
* This transformation highlights the unique properties of the flower's pigments and their response to different wavelengths of light.

**Conclusion**

The image effectively compares the appearance of a passion flower under regular daylight and UV-A blacklight exposure, demonstrating its striking visual contrast when illuminated by ultraviolet radiation. – AI vision