The major foliar phenolics of Keckiella ternata are quercetin 3-O-glucoside, kaempferol 3-O-glucoside, and acteoside (= orobanchin). The occurrence of flavonols in K. ternata is anomalous compared with other species of Keckiella and Penstemon, in which leaf flavonoids are based on luteolin and 6-hydroxyluteolin. The occurrence of foliar flavonols in K. ternata is interpreted as an advanced, derived condition.
"Follar Flavonoids of Keckiella Ternata,"
Aliso: A Journal of Systematic and Evolutionary Botany:
2, Article 8.
Available at: http://scholarship.claremont.edu/aliso/vol12/iss2/8
© 1989 Ron Scogin
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