Ipomopsis arizonica resembles the more widespread
ipomopsis aggregata which inhabits all of the same range, but has shorter stems, shorter corolla tubes, wider corolla lobes, and stamens (and styles) which are included rather than exserted. Flowers have a short reddish calyx and a red to magenta corolla tube between 0.4 and 0.8 inches long, opening to five lobes, pointed at the tip. The stamens are all attached at the same level, inside the tube. Flowers form along the upper third of the stems, typically numbering 5 to 13.
The reddish stems grow vertically upwards, and may be hairless, or lightly glandular hairy. Leaves grow at the base and along the stem, where they are more likely to have a sparse hair covering. All leaves are divided into short, linear lobes, pointed at the tip.