Favoritos de derekstephenhollingshead

At Cactus Rock

Same population as this observation - red interior
https://www.inaturalist.org/observations/136836914

Not sure if this is the correct species.

Sandy lakeshore, uninhabited island in Big Whiteshell Lake ; found right at driftline, could not find any rooted plants of this type nearby

@derekstephenhollingshead -should be the same population as https://inaturalist.ca/observations/203517535

Longest spines >3cm long, several areoles with 9 or more spines, flowers ~5cm diameter.

Cowan

close proximity to a patch with orange-centered blooms

This could be O. mesacantha depending on flower color.

Some of them had long spines but I didn't get a pic

Limestone glade. Plants to 3 feet tall. Largest pads nearly 10 inches long. Pads with buds removed and pressed later when flowering for herbarium specimens. Specimens at ANHC.