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   Linaria vulgaris herb
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    Linaria bipartita


    Clovenlip toadflax (Linaria bipartita) bears reddish coloured flowers with orange throats and strongly curved spurs, which makes it easily distinguishable from yellow toadflax when in flower (CDFA, undated).
    Linaria canadensis


    Oldfield or blue toadflax (Linaria canadensis) a native species bears bluish-purple coloured flowers with white throats and strongly curved spurs which makes it easily distinguishable from yellow toadflax when in flower (CDFA, undated).
    Linaria genistifolia


    Dalmation toadflax (Linaria genistifolia ssp. dalmatica) grows in common areas with yellow toadflax and has similar flower coloration. The main differences between this species of toadflax and yellow toadflax is that Dalmation toadflax is a taller, more robust plant, with slightly broader leaves that are sessile and clasp the stem of the plant. The upper leaves and stem can be glaucous, its flowers larger than yellow toadflax, and its apical flower buds often have a purple coloration (CDFA, undated).
    Linaria pinifolia


    Pineneedle toadflax (Linaria pinifolia) bears purple flowers with yellow throats and purple veins running down the length of the spur which makes it easily distinguishable from yellow toadflax when in flower (CDFA, undated).
    Linaria purpurea


    Purple toadflax (Linaria purpurea) has a purple flowers with a darker purple throat which makes it easily distinguishable from yellow toadflax when in flower (CDFA, undated).

ISSG Landcare Research NBII IUCN University of Auckland