- Plant: Arrowleaf Tearthumb (Polygonum sagittatum)
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- Info: Entire plant / June 9, 2023 / Aberdeen, NC Pages Lake park (NW bog area) / License: All rights reserved
- Caption: Arrowleaf Tearthumb #478; RAB p. 409, 63-4-18; AG p. 442, 89-4-19; LHB p. 439, 56-?, "Greek for 'many kneed' from the numerous joints."