Category:Wolffia columbiana - botanical illustrations
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Media in category "Wolffia columbiana - botanical illustrations"
The following 3 files are in this category, out of 3 total.
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Field book of ponds and streams (Page 85) BHL4949781.jpg 1,835 × 3,296; 540 KB
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Wolffia columbiana BB-1913.png 2,044 × 2,374; 108 KB
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Wolffia columbiana columbian watermeal.jpg 600 × 900; 50 KB