| 35320 | Spiranthes polyantha Rchb. f. | | | a | | Spiranthes polyantha Rchb. f. | |
| 35321 | Spiranthes romanzoffiana Cham. | | | a | | Spiranthes romanzoffiana Cham. | |
| 35322 | Spiranthes sinensis (Pers.) Ames | | | a | | Spiranthes sinensis (Pers.) Ames | |
| 320127 | Spiranthes parksii Correll | | | a | | Spiranthes parksii Correll | |
| 320128 | Spiranthes diluvialis Sheviak | | | a | | Spiranthes diluvialis Sheviak | |
| 400870 | Spiranthes delitescens Sheviak | | | a | | Spiranthes delitescens Sheviak | |
| 449974 | Spiranthes tuberosa Raf. | | | a | | Spiranthes tuberosa Raf. | |
| 449975 | Spiranthes grayi Ames | Spiranthes tuberosa Raf. | 449974 | | | Spiranthes grayi Ames | Spiranthes tuberosa Raf. |
| 449976 | Spiranthes odorata (Nutt.) Lindl. | | | a | | Spiranthes odorata (Nutt.) Lindl. | |
| 449978 | Spiranthes cernua (L.) Rich. var. odorata (Nutt.) Correll | Spiranthes odorata (Nutt.) Lindl. | 449976 | | i | Spiranthes cernua (L.) Rich. var.odorata (Nutt.) Correll | Spiranthes odorata (Nutt.) Lindl. |
| 455011 | Spiranthes vernalis Engelm. & A. Gray | | | a | | Spiranthes vernalis Engelm. & A. Gray | |
| 456517 | Spiranthes lacera (Raf.) Raf. | | | a | | Spiranthes lacera (Raf.) Raf. | |
| 456518 | Spiranthes lacera (Raf.) Raf. var. lacera | | | a | i | Spiranthes lacera (Raf.) Raf. var.lacera | |
| 456519 | Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer | | | a | i | Spiranthes lacera (Raf.) Raf. var.gracilis (Bigelow) Luer | |
| 456522 | Spiranthes gracilis (Bigelow) Beck | Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer | 456519 | | | Spiranthes gracilis (Bigelow) Beck | Spiranthes lacera (Raf.) Raf. var.gracilis (Bigelow) Luer |
| 456523 | Spiranthes lucida (H. H. Eaton) Ames | | | a | | Spiranthes lucida (H. H. Eaton) Ames | |
| 456525 | Spiranthes spp. | | | a | | Spiranthes spp. | |
| 456825 | Spiranthes porrifolia Lindl. | | | a | | Spiranthes porrifolia Lindl. | |
| 456828 | Spiranthes romanzoffiana Cham. var. porrifolia (Lindl.) Ames & Correll | Spiranthes porrifolia Lindl. | 456825 | | i | Spiranthes romanzoffiana Cham. var.porrifolia (Lindl.) Ames & Correll | Spiranthes porrifolia Lindl. |
| 457178 | Spiranthes cernua (L.) Rich. | | | a | | Spiranthes cernua (L.) Rich. | |
| 486101 | Spiranthes cernua (L.) Rich. var. cernua | Spiranthes cernua (L.) Rich. | 457178 | | i | Spiranthes cernua (L.) Rich. var.cernua | Spiranthes cernua (L.) Rich. |
| 486102 | Spiranthes romanzoffiana Cham. var. romanzoffiana | Spiranthes romanzoffiana Cham. | 35321 | | i | Spiranthes romanzoffiana Cham. var.romanzoffiana | Spiranthes romanzoffiana Cham. |