![Columbine (Aquilegia canadensis) bloom showing spurs](https://torontobotanicalgarden.ca/wp-content/uploads/2016/06/Aquilegia-calcar-348x232.jpg)
Botanical Nerd Word: Calcar
Calcar: A spur or spur-like appendage.* The petals of columbines (Aquilegia spp.), such as this A. canadensis, form spurs out the back of the blooms. The genus name, Aquilegia, comes …
Botanical Nerd Word: Calcar Read More