My Colby-Sawyer Experience

“My students are always kind of surprised to learn about what they have missed, what they haven't been paying attention to all their lives.”
Natural Sciences Professor Laura Alexander

175th Celebration

In 2012 the college celebrated 175 years as an institution of teaching and learning. Visit the 175th website for more information and to view photos of the events.

Echinocactus polycephalus
Cactaceae

Height: 2'

Stem: 10" wide and cylindrical. It has 13 to 21 ribs. The top spines are flat and reddish or pink in color with grey fealty hair on them. They are 3" long and clustered in 4 with the lowest spine curving downward. The other spines are 1 3/4" long and clustered in 6 spines. The Cottontop is often found in dense clusters of up to 30.

Flowers/Fruit: In bloom February to March. The flower is yellow streaked with pink and is 2" wide at the top. The fruit is 1" long and covered densely with white, woolly hairs.

Form/Habitat: Rocky or gravely slopes 100 to 2,500'.


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