Flowers of Passiflora foetida when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from a trailway near Birch Creek Unit of Somerville Lake State Park. Texas

🎞️ #3610-15

The image showcases two photographs of flowers from the Passiflora foetida plant, one captured under regular daylight and the other illuminated by a 365 nm ultraviolet (UV-A) blacklight.

**Photograph 1: Daylight**

* The top photograph features three flowers with dark purple petals that are slightly wilted.
* Each flower has five sepals, a yellow center with red streaks, and a greenish-yellow stamen.
* A few of the petals have fallen off one of the flowers.

**Photograph 2: UV-A Blacklight Illumination**

* The bottom photograph presents three flowers that are slightly different from those in the daylight photograph.
* They have lighter purple petals with more pronounced veins and a larger yellow center with red streaks, which appears to glow under the blacklight.
* One of the stamens is also visible.

**Comparison**

* Under regular daylight, the flowers appear dark purple with wilted petals.
* When illuminated by UV-A blacklight, they display lighter purple petals and a glowing yellow center.

The image highlights the unique appearance of Passiflora foetida flowers when exposed to different light sources. – AI vision

🇪🇸 Descripción en español / Spanish Description

Las flores de Passiflora foetida cuando se exponen a la luz diurna regular y también cuando se iluminan con una luz negra ultravioleta (UV-A) de 365 nm desde un camino cercano a Birch Creek Unit of Somerville Lake State Park. Texas, 28 de agosto de 2024. La imagen muestra dos fotografías de flores de la planta Passiflora foetida, una capturada bajo luz diurna regular y otra iluminada con una luz negra ultravioleta (UV-A) de 365 nm. **Fotografía 1: Luz Diurna** * La fotografía superior presenta tres flores con pétalos morados oscuros que están ligeramente marchitos. * Cada flor tiene cinco sépalos, un centro amarillo con rayas rojas y un estambre amarillo-verdoso. * Algunos de los pétalos han caído de una de las flores. **Fotografía 2: Iluminación de Luz Negra UV-A** * La fotografía inferior presenta tres flores que son ligeramente diferentes a las de la fotografía de luz diurna. * Tienen pétalos morados más claros con venas más pronunciadas y un centro amarillo grande con rayas rojas, que parece brillar bajo la luz negra. * También se puede ver uno de los estambres. **Comparación** * Bajo luz diurna regular, las flores aparecen moradas oscuras con pétalos marchitos. * Cuando se iluminan con luz negra UV-A, muestran pétalos morados más claros y un centro amarillo brillante. La imagen destaca el aspecto único de las flores Passiflora foetida cuando se exponen a diferentes fuentes de luz. – Spanish translation

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