We may have missed it because we were en route to Tucson for a meet-up of the First Friday Botanists, but that's another story.
Anyway, lest the suspense grow too unbearable, let me introduce the Scarlet Claret Cup, Echinocereus triglochidiatus, as this week's [year's?] Plant of the Week!
My rather inadequate portrait is of a "captive" specimen at Red Rocks Park, a remnant of a cactus garden that once thrived there, back in the 1960s to 1980s. It was in the way of new landscaping that's about to be installed in front of the Trading Post, so (as of yesterday), the two surviving specimens and their historic sign are residing in custody awaiting transfer to a new site in our Red Rocks Native Garden.
Better photos are available from the Southwest Colorado Wildflowers site, an excellent resource.
The one puzzle was why "Kingcup" in all the publicity? It's not a name I'd heard applied, and for a moment I feared SW Colorado Wildflowers, with their photos of a "King" and "Queen" and "Supreme Master" of the species, had led the poor Girl Scouts astray. Further checking revealed that there is, indeed, a related species called Mojave kingcup cactus, and in fact the USDA Plants database uses "kingcup" for the species we have long known as "claret cup." Perhaps wisely, Plantlist.org refuses to give a common name and prefers to consider the subspecies as mere synonyms.