| Verbatim Directions to Locality: | Mystic Lake, near Madison. |
| Habitat: | in shallow water, sandy-peaty bottom. |
| Non digital information?: | N |
| Identifier's Name: | |
| Text Identification Date: | coll. Oct. 1, 1955 |
| Formal Identification Date: | 1955-10-01 |
| Lowest Rank Identified: | first Infraspecific Epith |
| Identification History: | Pontederia lanceolata Nutt.; det. J.P.G.; coll. Oct. 1, 1955 |
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| Identifier's Name: | |
| Lowest Rank Identified: | first Infraspecific Epith |
| Identification History: | P. cordata L. [unidentified handwritten note]. |
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| Identifier's Name: | R. M. Lowden |
| Text Identification Date: | June 1971 |
| Formal Identification Date: | 0000-00-00 |
| Lowest Rank Identified: | first Infraspecific Epith |
| Identification History: | Pontederia cordata L. var. cordata; R.M. Lowden; June 1971 |
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