RT Journal Article SR Electronic T1 Flavonoid Distribution in Zelkova JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 190 OP 192 DO 10.48044/jauf.1983.047 VO 9 IS 7 A1 Santamour, Frank S. YR 1983 UL http://auf.isa-arbor.com/content/9/7/190.abstract AB Each of the five species of Zelkova tested could be distinguished by the qualitative or quantitative distribution of flavonol glycosides. Thus, the verification of interspecific hybrids might be achieved by flavonoid analyses. Such analyses indicted that Z. X verschaffeltii is actually a rare hybrid between Z. carpinifolia and Z. serrata.