3 responses to “Lupinus sp.”

  1. Daniel Mosquin

    Dr. Quentin Cronk requested a comment by Dr. Colin Hughes about this mystery. Dr. Hughes had this to say:

    My guess is that it is an introduced North American species, or a hybrid between two North American introductions, but I am still not familiar enough with all of the North American perennials (yet!) to make a sensible guess. It is certainly not Lupinus mutabilis–nor, I would guess a spontaneous hybrid involving Lupinus mutabilis. Very doubtful if L. mutabilis would survive in Patagonia anyway.

    There are very few (c.5) native Chilean species of Lupinus, all of them in the north, and it does not match any of them. Several North American species, including Lupinus arboreus and Lupinus polyphyllus are introduced and naturalised in Chile. Native Lupinus is similarly absent from southern Argentina, again apart from L. arboreus and L. polyphyllus which both occur widely but sporadically. Thus suspicion must fall on Lupinus polyphyllus and its numerous allies, unless there is an interesting and as yet undocumented surprise lurking down in the Cono Sur.

  2. Brent Hine

    One quick search around google will show definitively that the taxa shown is not L. mutabilis nor even close to it. Dr. Hughes likely has it right, that it’s in the line of L. polyphyllus. The accesssion number of the plant shown is actually 2004-0202. Seed came to the garden from the Alpine Garden Club of BC, which means it could have been garden or wild collected. In short, there probably is no undocumented surprise waiting down in the Cono Sur.

  3. Neeld

    L. polyphyllus is a very common escapee in Patagonia. In many areas it is the single most conspicuous spring “wild”flower.
    In this area (Bariloche, Argentina) Blue (as in the photo) is the most common but pink, yellow and white are also present to varying degrees.
    I have also seen what I believe to be specimens of Lupinus arboreus, but these are much less common and clearly not the plant in the photo.

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