218 Sea Scurvy Grass.
The text for this image is found on the page 217-220 Horsetail, Sea Scurvy-Grass, White Maiden Hair, Black Maiden Hair in A Curious Herbal, Elizabeth Blackwell, 1737 (Vol. 1), 1739 (Vol. 2).
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Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.