Sideritis romana USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 111. Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana Sideritis romana
Common Sideritis simplebeak ironwort Stregonia comune
Sideritis romana Sideritis scordioides Sideroxylon lanuginosum Sideroxylon lanuginosum ssp. lanuginosum Sideroxylon lycioides Sieglingia decumbens Sigillaria elegans Silaum silaus Silaus flavescens Silaus pratensis Silena gallica Silene acaulis Silene alba Silene antirrhina Silene armeria Silene badaroi Silene bellidifolia Silene borderei Silene campanula Silene canescens Silene caroliniana Silene carthusianorum Silene catholica Silene chalcedonica Silene coelirosa Silene colorata Silene conica Silene conoidea Silene cordifolia Silene coronaria Silene cretica Silene cucubalus Silene dichotoma Silene dioica Silene dioica var. dioica Silene drummondii var. drummondii Silene flos-cuculi Silene flos-cuculi subsp. flos-cuculi Silene flos-jovis
