Tithymalus brachycera - Rocky Mountain spurge (Horned spurge) - Spurge Family (Euphorbiaceae) - Summer - Colorado Wildflower - "Tithymalus" is an "ancient Greek name for a plant with milky sap (Weber)". "Brachy cera" is Greek for "short horned". In 1753 Linnaeus named the genus "Euphorbia", most probably, according to Intermountain Flora, for "Euphorbus, physician of King Juba of Numidia, an ancient kingdom of North Africa.
Comandra umbellata - Bastard toadflax - Sandalwood Family (Santalaceae) - Summer - Colorado Wildflower - Despite the common name Bastard Toadflax, Comandra umbellata is neither a noxious weed nor closely related to Dalmatian or Yellow Toadflax. Bastard Toadflax is a native plant, blooming in spring and early summer on dry sites. What appear to be white petals are actually sepals, and the flower has no true petals. The plants are usually 3" to 12" tall.
Amelanchier utahensis - Serviceberry - Rose Family (Roseaceae) - Summer - Colorado Shrub - Since Amelanchier utahensis grows in close proximity to Junipers (often called Cedars) it serves, unfortunately, as a host for the Apple-Cedar rust. After flowering season, Serviceberry leaves and berries commonly are orange-spotted with the Apple-Cedar rust, but when they are not, the fruit can be quite juicy and tasty.