| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Apocynaceae | Amsonia ciliata | Sandhill Bluestar | Longleaf pine sandhills, other dry woodlands and openings. | Se. NC south to c. peninsular FL, west to c. and s. AL; curiously disjunct in the Ozark-Ouachita highlands of sc. MO, w. AR, and se. OK; material from sc. and w. OK and TX sometimes included in A. ciliata is here considered a separate species, A. texana (A. Gray) Heller. | 
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| Apocynaceae | Amsonia glaberrima | Gulf Bluestar, Pond Bluestar | Seasonally flooded depression wetlands and moist pinelands. | S. AL, s. MS, s. LA, and se. TX. | 
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| Apocynaceae | Amsonia hubrichtii | Hubricht's Bluestar | Gravel bars along streams. | Endemic to the Interior Highlands of AR and OK. | 
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| Apocynaceae | Amsonia illustris | Ozark Bluestar, Shining Bluestar | Gravel bars along streams, glades and upland woodlands. | MO and KS south to AR, OK, and TX. Reported for the Coastal Plain of KY, plausible as native there, but perhaps introduced. | 
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| Apocynaceae | Amsonia ludoviciana | Louisiana Bluestar | Mesic forests and woodlands. | So far as is known, endemic to LA, MS, and e. TX (Doffitt et al. 2014); not native or naturalized in SC, contrary to Kartesz (1999). | 
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| Apocynaceae | Amsonia repens | Creeping Bluestar | Prairies. | W. LA west to ec. TX and e. OK (approaching sw. AR). | 
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| Apocynaceae | Amsonia rigida | Stiff Bluestar, Pond Bluestar | Seasonally flooded depression wetlands and moist pinelands. | S. GA to n. peninsular FL, west to s. MS. | 
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| Apocynaceae | Amsonia salicifolia | Gattinger's Bluestar | Rich forests, rocky forests, riverside scours. | IL, MO, and se. KS south to (?) ne. TX, and apparently disjunct in the Interior Low Plateau of sc. KY, c. TN (Chester, Wofford, & Kral 1997), and in n. GA. | 
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| Apocynaceae | Amsonia salpignantha | Trumpet Slimpod, Tubular Bluestar | Limestone hills. | Eastern edge of Edwards Plateau, TX, west to e. Trans-Pecos, TX, and south into CHH. | 
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| Apocynaceae | Amsonia species 2 | Lithonia Bluestar | Open woodlands around outcrops of Lithonia granitic gneiss. | Endemic to GA Piedmont. | |
| Apocynaceae | Amsonia species 3 | | Wet habitats. | AL, and MS (Black Belt). | 
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| Apocynaceae | Amsonia tabernaemontana | Wideleaf Blue-stars | Floodplain forests, moist, rich slope forests. | Se. VA west to s. IL, MO, and KS, south to GA, LA, e. OK, and TX. | 
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| Apocynaceae | Amsonia texana | Texas Bluestar | Dry woodlands, prairies, rocky hillsides and ridges. | OK south to TX. | 
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