MSGID: 1:317/3 63d95763   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    Pincushion Cactus   
      
      January 31, 2023   
      
       Menashe_pincushionepod_Picture1   
      
       Menashe_pincushionepod_Picture2   
      
      Photographer:  Menashe Davidson   
      
      Summary Author:  Menashe Davidson   
      
      The pincushion cactus or  Mammillaria is a genus in the   
       Cactaceae family that’s native to the U.S. and Mexico as well as to   
      mid-latitude regions of South America. This cactus is noted for its   
      small size (about 6 inches or 15 cm tall), its rounded or cylindrical   
      shape, its tubercles (rounded projections) arranged in a spiral pattern   
      and its funnel-shaped flowers (about 1 inch or 25 mm in diameter) that   
      form a halo around the top.   
      
      I grow this popular cactus in my home garden in Rishon LeZion, Israel.   
      They’re tough plants that tolerate a variety of conditions. What   
      attracted me most is the crown-like formation of the funnel-shaped   
      flowers surrounding the top of the plant (top photo).  Mammillaria   
      flowers grow out of the axils between  succulent nipple-shaped   
      tubercles. The  axils are covered with wooly hairs or bristles,   
      whereas the areoles are often covered with a wool or felt-like   
      substance. Their bloom period, during the summertime, is relatively   
      short – a few weeks, and these cacti hold their flowers for only about   
      one week (bottom photo). Note that when viewing the pincushion cacti   
      from above, a very organized and  orderly appearance is observed.   
      Photos taken on November 18, 2022.   
      
      
      Rishon LeZion, Israel Coordinates: 31.9730, 34.7925   
      
      
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      Matthee Big Tree  Patterns in the Dieffenbachia Plant  Lace   
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       More...   
      
   Plant Links   
      
        *  Discover Life   
        *  Tree Encyclopedia   
        *  What are Phytoplankton?   
        *  Encyclopedia of Life - What is a Plant?   
        *  USDA Plants Database   
        *  University of Texas Native Plant Database   
        *  Plants in Motion   
        *  What Tree is It?   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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