| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Plantaginaceae | Callitriche hermaphroditica | Autumn Water-starwort | Lakes, ponds, ditches. | Greenland, NL, and AK south to CT, NY, IL, KS, NM, AZ, and CA; Eurasia. |  |
| Plantaginaceae | Callitriche heterophylla var. heterophylla | Common Water-starwort | Pools, slow-moving streams, ditches. | Greenland west to AK, south to c. peninsular FL, TX, CA, and Mexico. |  |
| Plantaginaceae | Callitriche palustris | Swamp Water-starwort | Ponds, lakes, stagnant streams, wet soil. | Circumboreal, in North America south to VA, WV, IL, TX, and CA; South America. |  |
| Plantaginaceae | Callitriche pedunculosa | Nuttall's Water-starwort | Low fields, pond shores. | NC, c. TN, and OK south to c. peninsular FL, AL, and TX. |  |
| Plantaginaceae | Callitriche peploides | Low fields, ditches. | SC south to s. FL, west to TX; disjunct inland in AR (the report for Polk Co., TN erroneous); e. Mexico south to Costa Rica. |  | |
| Plantaginaceae | Callitriche stagnalis | Pond Water-starwort | Ponds, stagnant water, wet soil. | Native of Europe, or possibly also native in some areas. See Philbrick, Aakjar, & Stuckey (1998) for additional discussion of the spread of this species in North America. |  |
| Plantaginaceae | Callitriche terrestris | Terrestrial Water-starwort | Clay-pan areas, streambanks, ditches, low fields, wet paths. | MA to KS, south to GA, TX, and Mexico. |  |
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