Spur (biology)
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A spur in botany is a structure that exists in certain plants consisting of an elongated sepal at its back edge. This structure may range from about one to ten millimeters in length and is typically on the center of an odd number of sepals. Example flowering plants containing this structure are the genera Delphinium and Piperia. The structure is useful in distinguishing species within certain genera; for example, Yadon's piperia cannot be easily identified from other Piperia save for the unusually short length of its spur.[1]
[edit] References
- ^ Morgan & Ackerman, Lindleyana 5:205–211 (1990)
