10 responses to “Helianthus anomalus”

  1. Stuart

    Wow! Beautiful photos,and interesting write-up. Did you use a filter to make the color of the sky so intense (polarizing, perhaps?), or was it natural?

  2. Daniel Mosquin

    For the first photograph, I suspect it was a late evening shot taken with either a flash or spotlight on the plants (I tend to think the latter because of the pattern of light). This particular one, I think, is also a slide scan – so it is possible that Velvia film was used, hence the vivid colours.

  3. Cherie

    I’m interested in the reproductivity of the hybrids, if anyone knows i.e. if they can reproduce at all, or only with one/both of the parent species, or among each other. Since that whole “definition of a species” thing they try and set in our often doesn’t hold for plants (the Senna’s in australia for example).
    Very interesting work.

  4. Loren Rieseberg

    Daniel is correct that a flash was used in the first photo. The second is entirely natural. However, both shots were taken in the early evening, hence the vivid lighting. Fuji film was used.
    With respect to reproduction, the hybrid species are fully fertile inter se, but crosses with the parental species are almost completely sterile. That is, they do represent good biological species.

  5. elizabeth a airhart

    is your research similar
    to what hawkins called
    memes in human culture
    the pictures are dramatic
    do i see foot prints leading
    up to the plant in print two
    thank you to every one
    tis a lot of work

  6. Margaret-Rae Davis

    I do thank you for the great Photographs today. It is hard to even think anything could grow on sand dunes. The patent and flow of the sand and a beautiful plant amist all the driness is a wonder of the world.
    Thank you,
    Margaret-Rae

  7. Eric in SF

    So I’m confused – are these now considered true species with a known hybrid ancestry?
    The reason I ask – natural hybrids are written differently from true species. I would expect this plant to be written Helianthus x anomalus if my understanding of botanical nomenclature is correct.
    Love the vivid colors – we’ve got quite a few more years before digital achieves the look of beloved analog films such as Velvia 50 and Kodachrome 25.

  8. Eric La Fountaine

    Eric in SF, your question got me wondering. It seams to me that this plant was named before it was realized that it was a hybrid. Helianthus x anomalus would be a synonym of Helianthus anomalus and according to the Vienna Code the earlier name takes precedence (APPENDIX I – NAMES OF HYBRIDS Article H.3.3).

  9. Eric in SF

    Eric – that makes it a lot clearer, especially the part about the plant being named before it was known to be of hybrid origin. Thanks for digging through the Code!

  10. sherry silver

    This whole study bodes well for potentially growing food items in poor soil conditions. Very cool. And beautiful as well.

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