10 responses to “Senecio pseudoarnica”

  1. Bonnie

    I never even noticed the footsteps. Didn’t see any animal prints either. 🙂 The flower reminds me of a sunflower.

  2. Lynn Wohlers

    Your comments on the distribution quandary are interesting – sometimes you have to remember the “d” option – as in, there’s a lot we don’t know! But the long-distance dispersal option is intriguing.
    Also – I like the way the beach photo shows leaf color variation, from lime greens to aqua greens, over just a few different plants.

  3. Reen

    What does “amphiberingian” mean? I tried to search it and got no results.

  4. Pat Collins

    I was intrigued by “parts of Pacific Asia” and it appears to be found in Japan, Korea, Manchuria, Amur, Ussuri and Kamchatka http://www.biodiversitylibrary.org/page/30046804#page/920/mode/1up

    Also in the Aleutians http://www.biodiversitylibrary.org/page/33988732#page/95/mode/1up including Bogoslof or Agasagook Island. http://www.biodiversitylibrary.org/page/12695082#page/213/mode/1up

    As that island only emerged from the sea in 1796 the author notes (in 1952 , with Hultén writing in 1937):

    “The ability of a number of Aleutian plants to invade new ground is remarkable. This is especially noticeable on earth slide scars of steep hillsides, and Hultén has made note of the quick invasion of Bogoslof, the recently formed Bering Sea island, by Senecio pseudoarnica and other plants.”

    So, together with frequent high winds around the whole of the beringian coasts the wide spread of Senecio pseudoarnica is understandable. Like the spread of another Senecio, Oxford ragwort, whose parachuted seeds were carried along the railways of Britain in the turbulent wind-wake of the trains. Senecio squalidus was introduced from the slopes of the volcano Mt Etna in around 1690. It also loved disturbed ground and with the introduction of railways laid on clinker, similar enough to volcanic soils, soon covered the whole island up to the Antonine Wall.

    As Senecio pseudoarnica is found in the southern coasts of Beringia as well as eastern and western, would the plant not be panberingian rather than amphiberingian?

    It may even have found its way to Norway according to this English abstract with Norwegian text and glossy photos here: pp 86-90 http://nhm2.uio.no/botanisk/nbf/blyttia/blyttia_pdf/Blyttia_200702_skjermkvalitet_hele.pdf However, further investigation showed a human hand helped: pp 244-251 http://nhm2.uio.no/botanisk/nbf/blyttia/blyttia_pdf/Blyttia_200804_skjermkvalitet_hele.pdf

  5. Danae Yurgel

    I love learning a new word “amphiberingian”! Thank you for the introduction!
    I am also intrigued by the possibility that if Senecios in general love disturbed sites, they may have followed early prehistoric distribution paths of those ultimate ground disturbers, Home sapiens … ?
    Just wandering thoughts on a rainy day …

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