The image displays a close-up of several leaves from an unidentified green plant, possibly Senecio ampullaceus (squaw-weed). The leaves are large and have wavy edges that curve towards the center. They appear to be growing on a plant with multiple stems.
On the left leaf, there is a brown discoloration on one side of the leaf near the top. On both the middle and right leaves, there are numerous white spots that resemble pustules or blisters on the leaves. These spots may be caused by a fungus called Pustula tragopogonis (Albugo tragopogonis), which is also known as sunflower white rust.
The background of the image appears to consist of more green leaves, with some stems visible in between the larger leaves. Overall, the image provides a detailed view of the affected leaves and suggests that they may be infected with a fungal disease. – AI vision
Hoja de la planta hembra (Senecio ampullaceus) con hongos de la pudrición blanca del girasol Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) en el Yaupon Loop Trail en Lick Creek Park. College Station, Texas, 17 de febrero de 2024. La imagen muestra un primer plano de varias hojas de una planta verde no identificada, posiblemente Senecio ampullaceus (planta hembra). Las hojas son grandes y tienen bordes ondulados que se curvan hacia el centro. Parecen crecer en una planta con múltiples tallos. En la hoja izquierda, hay una decoloración marrón en un lado de la hoja cerca de la parte superior. En las hojas del medio y derecho, hay numerosas manchas blancas que se asemejan a pústulas o ampollas en las hojas. Estas manchas pueden ser causadas por un hongo llamado Pustula tragopogonis (Albugo tragopogonis), también conocido como pudrición blanca del girasol. El fondo de la imagen parece consistir en más hojas verdes, con algunos tallos visibles entre las hojas más grandes. En general, la imagen proporciona una vista detallada de las hojas afectadas y sugiere que pueden estar infectadas con una enfermedad fúngica. – Spanish translation
Similar(1): Spores (in lugol) of sunflower white rust fungus Pustula tragopogonis ... Park. College Station, Texas, February 17, 2024
Similar(2): Spores (in Congo Red) of sunflower white rust fungus Pustula ... Park. College Station, Texas, February 17, 2024
Similar(3): Spores and tissues (at low magnification) of sunflower white rust ... Park. College Station, Texas, February 17, 2024
Similar(4): Underside of leaves of squaw-weed (Senecio ampullaceus) with sunflower ... Creek Park. College Station, Texas, March 20, 2023
Similar(5): Close-up of underside of leaves of squaw-weed (Senecio ampullaceus ... Creek Park. College Station, Texas, March 20, 2023
Similar(6): Tissues (in Melzer) of sunflower white rust fungus Pustula ... on-the-Brazos a day before. Texas, March 7, 2023
Similar(7): Spores an conidia(?) (in KOH) of sunflower white rust fungus Pustula ... on-the-Brazos a day before. Texas, March 7, 2023
Similar(8): Leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust ... Somerville Lake State Park. Texas, March 5, 2023