USA, Arizona, Pinal County, South foothills of Superstition Mountains, along Lost Gold Mine Trail, ca 100 m northeast of junction with Hieroglyphics Trail.
Locally common, erect, 1-1/3 m tall, branched at base with recumbent stem, otherwise trunk single, flowers 56(l) x 40(w) mm, 53x40 mm, 57x36 mm, 60x40 mm, 50x42 mm, 62x37 mm, 62x37 mm, inner tepal 25x20 mm, strongly flabellate, erose tips, outer tepals light yellow with red midsection and apices, inner tepals light yellow, light chartreuse basally, filaments dark chartreuse/green, anthers golden yellow, style light cream, becoming light cream-light chartreuse distally, stigma lobes dark chartreuse/green; fruits light green, strongly tuberculate, 36(l) x20(w) mm, 30x20 mm, 35x20 mm.