Herbaceous plant near Colima volcano, Mexico

Discussion in 'Plants: Identification' started by ceramik, Oct 9, 2018.

  1. ceramik

    ceramik Active Member

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    Photographed in September. Somewhat less than 1 meter in height. Moist highlands south of Colima Volcano, Colima State.
     

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  2. Daniel Mosquin

    Daniel Mosquin Renowned Contributor UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Rubiaceae, maybe Pentas. It's one of the largest families...
     
  3. wcutler

    wcutler Renowned Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    I'm going to be upset if it's Pentas, which I made myself recognize by their five petals (goes with their name), to distinguish them from Ixora, which have four petals (in an X configuration, which has nothing to do with their name). They probably look different in other respects too, and I don't see any Ixora that look anything like this.

    Are the search results way worse than ever? Why do I have to get Ontario wildflowers when I query mexican plant hairy four petals? It seems impossible to insist that the results have something to do with Mexico.
     
  4. wcutler

    wcutler Renowned Contributor Forums Moderator VCBF Cherry Scout 10 Years

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    That second photo is stunning. I love the luminescence in the flowers.

    What about Crusea hispida? I'm not totally convinced. Stems not hairy enough?
    Crusea hispida ยท iNaturalist.org
    Crusea hispida var. grandiflora - fotos

    I think I might even favour Crusea wrightii var. wrightii, based on just three photos on this page:
    The World's Best Photos of cananea and mexico - Flickr Hive Mind
    I like the blue stamens and pistils [edited - I meant to say "stamens and anthers"] in these photos, which match your photo.

    Crusea calocephala could be a possibility. It's the banner photo on this page:
    NLE : Family : Rubiaceae

    We're still in Rubiaceae anyway. And in Mexico.
     
    Last edited: Oct 11, 2018
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  5. ceramik

    ceramik Active Member

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    Flower of Crusea wrightii var. wrightii is right on (pun not intended). Leaves on my images seem to show somewhat more branching than the images of wrightii but perhaps that's a function of position along stem? On SEINet, I see records of wrightii var. wrightii, hispida and longiflora , all within a few km of my locality, but the latter two bear much less resemblance to my photos. So I'm quite content with wrightii for my purposes. Thanks Wendy!
     

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