Natural hybridization among three sympatric Baptisia (Fabceae) species in north central Texas

M. A. Kosnik*, Jr Diggs G.M., P. A. Redshaw, B. L. Lipscomb

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A north central Texas Baptisia (Fabaceae, Thermopsideae) hybrid complex containing three parents (B. australis, B. sphaerocarpa, and B. bracteata) and the three F1 hybrids is investigated using morphological, spectrophotometric, and isozyme electrophoretic methods. Two of the three hybrids (B. x bushii and B. x bicolor) have been previously named, but the B. australis x B. sphaerocarpa hybrid (B. x variicolor) is here described for the first time. This is the first report of sympatric occurrence of these three Baptisia species and all the possible F1 hybrids. Morphological evidence for introgressive hybridization involving B. australis and B. sphaerocarpa is presented.

Original languageEnglish
Pages (from-to)479-500
Number of pages22
JournalSIDA, Contributions to Botany
Volume17
Issue number2
Publication statusPublished - 1996
Externally publishedYes

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