Blooming Maximilian sunflower (Helianthus maximiliani) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from David E. Schob Nature Preserve at 906 Ashburn St. College Station, Texas

🎞️ #3622-19
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College Station, Texas, September 16 - 18, 2024

Album 3622: College Station, Texas, September 16 - 18, 2024

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The image presents a dual perspective of Maximilian sunflowers under two distinct lighting conditions: natural light and UV-A blacklight illumination. The top photograph features a single flower in its natural state, while the lower image showcases an identical bloom under 365 nm ultraviolet (UV-A) blacklight.

**Natural Light Perspective:**

* The Maximilian sunflower appears vibrant yellow with a dark brown center.
* Its petals are long and narrow, resembling daisies or sunflowers. Notably, they do not have the typical rounded shape of most sunflowers.
* The flower's diameter is approximately 4 inches.

**UV-A Blacklight Illumination:**

* Under UV-A blacklight, the flower exhibits a striking transformation.
* Its petals turn greenish-yellow with white speckles, while the center remains dark brown.
* The overall effect is reminiscent of glow-in-the-dark daisies or sunflowers.

The use of UV-A blacklight reveals that Maximilian sunflowers have a unique ability to reflect light in the ultraviolet spectrum, resulting in an otherworldly appearance. This phenomenon highlights the intricate details and characteristics of these flowers when exposed to specific wavelengths of light. – AI vision

🇪🇸 Descripción en español / Spanish Description

La flor de girasol Maximiliano (Helianthus maximiliani) tanto a la luz natural como bajo luz negra ultravioleta (UV-A) 365 nm del David E. Schob Nature Preserve en 906 Ashburn Street, College Station, Texas, el 18 de septiembre de 2024. La imagen presenta una perspectiva doble de las flores Maximiliano bajo dos condiciones de iluminación distintas: luz natural e iluminación de luz negra ultravioleta (UV-A) 365 nm. En la fotografía superior se muestra una sola flor en su estado natural, mientras que la imagen inferior muestra un brote idéntico bajo iluminación de luz negra ultravioleta (UV-A) 365 nm.

**Perspectiva de luz natural:** * La flor de girasol Maximiliano aparece amarilla vibrante con un centro marrón oscuro. * Sus pétalos son largos y estrechos, parecidos a margaritas o girasoles. De manera notable, no tienen la forma redondeada típica de la mayoría de los girasoles. * El diámetro de la flor es de aproximadamente 4 pulgadas.

**Iluminación con luz negra ultravioleta (UV-A):** * Bajo luz negra UV-A, la flor presenta una transformación sorprendente. * Sus pétalos se vuelven amarillo verdoso con manchas blancas, mientras que el centro permanece marrón oscuro. * El efecto general recuerda a margaritas o girasoles luminiscentes. El uso de la luz negra UV-A revela que los girasoles Maximiliano tienen una capacidad única para reflejar la luz en el espectro ultravioleta, lo que resulta en un aspecto extraterrestre. Este fenómeno destaca los detalles e intrincadas características de estas flores cuando se exponen a longitudes de onda específicas de luz. – Spanish translation

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