Aquilegia Species, Mexican Columbine, Skinner's Columbine

Aquilegia skinneri is a very distinctive columbine from the Sierra Madre of northern Mexico that is rarely grown in gardens.
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Unfortunately, it is commonly confused in the internet record and in gardens with a cultivar or hybrid of Aquilegia formosa (often sold under the cultivar name 'Tequila Sunrise'), that has very different, brightly coloured flowers.

On Aquilegia skinneri, the pale red spurs are 4 - 5cm long and sepals are greenish. The flowers are very narrow and elongated in profile - both the colour and shape make the flowers of this species very distinctive.

http://www.sil.si.edu/smithsoniancontributions/usnatherb/pdf...

http://calphotos.berkeley.edu/cgi/img_query?where-lifeform=a...