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Grilled Cheese is a product of Village Compute

Version devBuilt at: 2026-10-15 21:53:40 EDT

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@botsocamerica.bsky.socialOct 15, 2026, 7:05 PM

Scale-space image analysis for mapping spotted knapweed in grassland ecosystems

New in #AppsPlantSci by Shohreh Sahebi & David J. Hill

doi.org/10.1002/aps3... @thompsonriversu.bsky.social #botany #invasivespecies #Gaussian #remotesensing #grasslands #conservation #knapweed

Image of a Gaussian pyramid. Scale-space representations combine the two-dimensional spatial domain with a third dimension representing spatial scale, such that features can be represented across both space and image spatial resolution. Gaussian pyramids (GPs) are constructed to create representations of the images across the scale-space. In the GP shown here the image resolution decreases from 2.9x2.9 cm at the base of the pyramid to 46x46 cm at its apex. Image credit: Shohreh Sahebi.
@concretebotany.bsky.socialSep 26, 2026, 10:37 PM

Spotted #Knapweed (Centaurea stoebe) shot on the median of Columbus Boulevard in 2019. I'm sorting galleries for the species now. It's such a beautiful noxious invasive.
#Bloomscrolling #Wildflowers #Flowers #SpottedKnapweed

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@au-contraire.bsky.socialSep 15, 2026, 7:13 PM

#AlphabetChallenge #WeekKForKn

#Knapweed #Thistle #Photography 📷 #Nature 🌱 #Mountains ⛰️ #Hills 🌄 #Travel ✈️ #Highlands of #Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿 #Weeds #RoadTrip 🛣️ #Flowers 🪻

This image captures a scenic, rural view of a mountainous hillside rich with wild vegetation: Foreground (Left and Center): The main focus is a tall, slender wild plant stalk bearing multiple flower heads. A couple of these round flower heads are in full bloom with a vibrant pinkish-purple hue (common knapweed). The rest of the bulbous heads on the branchy stem are brown and dry, representing older or spent buds. The plant is set against a lush, green, grassy slope filled with low-lying weeds and grass. Midground (Center): A rough, mossy gray rock or small boulder is partially embedded in the earth just behind the main wildflower stalk. Background (Right): The terrain slopes down toward a valley or roadside area. A narrow asphalt road curves along the lower portion of the hill.Vehicles and People (Far Right): In the distance along the roadside, a white vehicle (resembling a camper van or tour van) is parked. Immediately behind it is a smaller dark vehicle, with a couple of tiny figures of people standing nearby, suggesting a scenic overlook or rest stop. Far Background: The massive, steep, and rugged green face of a mountain rises high into the upper right corner, emphasising the expansive scale of the countryside.