Aristida aequiramea
| Aristida aequiramea Scheele, Linnaea 22: 343. 1849. | | TYPE: TEXAS: Comal Co.: New Braunfels, Sep 1846, Lindheimer 562 (lectotype: PH; isolectotypes: MEL, MO, US). Lectotypified by Merrill Circ. Div. Agrostol. U.S.D.A. 34: 7. 1901. |
Aristida berlandieri
| Aristida berlandieri (Trinius & Ruprecht) Hitchcock, Contr. U.S. Natl. Herb. 17: 280. 1913. | BASIONYM: Aristida purpurea Nuttall, var. berlandieri Trinius & Ruprecht 1842. | |
Aristida eggersii
| Aristida eggersii Hitchcock, Contr. U.S. Natl. Herb. 22: 560. 1924. | | TYPE: CUBA: La Caimanera, May 1889, Eggers 5389 (holotype: US). |
Aristida fasciculata var. california
| Aristida fasciculata Torrey, var. californica (Vasey) Vasey ex L. H. Dewey, Contr. U.S. Natl. Herb. 2: 515. 1894. | BASIONYM: Aristida purpurea Nuttall, var. californica Vasey 1892. | |
Aristida fasciculata var. hookeri
| Aristida fasciculata Torrey, var. hookeri (Trinius & Ruprecht) L. H. Dewey, Contr. U.S. Natl. Herb. 2: 515. 1894. | BASIONYM: Aristida purpurea Nuttall, var. hookeri Trinius & Ruprecht 1842. | |
Aristida fasciculata var. micrantha
| Aristida fasciculata Torrey, var. micrantha (Vasey) Vasey ex L. H. Dewey, Contr. U.S. Natl. Herb. 2: 515. 1894. | BASIONYM: Aristida purpurea Nuttall, var. micrantha Vasey 1892. | |
Aristida filipendula
| Aristida filipendula Buckley, Proc. Acad. Nat. Sci. Philadelphia 14: 93. 1862. | | TYPE: TEXAS: Comal Co.: New Braunfels, Sep 1846, Lindheimer 562 (lectotype: PH; isolectotype: US). Lectotypified by Merrill, Circ. Div. Agrostol. U.S.D.A. 34: 7. 1901. |
Aristida longiseta var. hookeri
| Aristida longiseta Steudel, var. hookeri (Trinius & Ruprecht) Merrill, Circ. Div. Agrostol. U.S.D.A. 34: 5. 1901. | BASIONYM: Aristida purpurea Nuttall, var. hookeri Trinius & Ruprecht 1842. | |
Aristida micrantha
| Aristida micrantha (Vasey) Nash, in Small, Fl. S.E. U.S. 117, 1327. | BASIONYM: Aristida purpurea Nuttall, var. micrantha Vasey 1892. | |
Aristida muhlenbergioides
| Aristida muhlenbergioides E. Fournier, Mexic. Pl. 2: 79. 1886. | | TYPE: MEXICO: San Luis Potosí: |
Aristida purpurea var. aequiramea
| Aristida purpurea Nuttall, var. aequiramea (Scheele) Merrill, Circ. Div. Agrostol. U.S.D.A. 34: 7. 1901. | BASIONYM: Aristida aequiramea Scheele 1849. | |
Aristida purpurea var. berlandieri
| Aristida purpurea Nuttall, var. berlandieri Trinius & Ruprecht, Sp. Gram. Stipac. 107. 1842. | | TYPE: TEXAS: Bexar Co.: Without data, Berlandier 1777 (holotype: LE; isotype: US). |
Aristida purpurea var. californica
| Aristida purpurea Nuttall, var. californica Vasey, Contr. U.S. Natl. Herb. 3: 47. 1892. | TYPE: CALIFORNIA: Yolo Co.: Capay Valey, May 1891, Lemmon 5474 (lectotype: US). Lectotypified by Hitchcock, Contr. U.S. Natl. Herb. 22: 556. 1924. | |
Aristida purpurea var. capillarifolia
| Aristida purpurea Nuttall, var. cappillarifolia Merrill, Circ. Div. Agrostol. U.S.D.A. 34: 8. 1901. | | TYPE: TEXAS: Without data, Nealley s.n. (holotype: US). |
Aristida purpurea var. hookeri
| Aristida purpurea Nuttall, var. hookeri Trinius & Ruprecht, Sp. Gram. Stipac. 107. 1842. | | TYPE: TEXAS: Without data, Drummond 293 (holotype: LE; isotype: US). |
Aristida purpurea var. laxiflora
| Aristida purpurea Nuttall, var. laxiflora Merrill, Circ. Div. Agrostol. U.S.D.A. 34: 8. 1901. | | TYPE: TEXAS: Without data, 12 May 1881, Reverchon 12 (holotype: US; isotype: L(fragm)). |
Aristida purpurea var. micrantha
| Aristida purpurea Nuttall, var. micrantha Vasey, Contr. U.S. Natl. Herb. 3: 47. 1892. | | TYPE: TEXAS: Without data, Nealley s.n. (holotype: US). |
Aristida roemeriana
| Aristida roemeriana Scheele, Linnaea 22: 343. 1849. | | TYPE: TEXAS: Comal Co.: Near New Braunfels, s.d., Roemer s.n. (holotype: UPS; isotype: MEL). |