| Croton dioicus Cav. | L. C. Hinckley 2790 | United States of America. Texas. Presidio Co. about 2 mi. SW. Casa Piedra. | | 3963795 |  |
| Croton dioicus Cav. | V. L. Cory 51975 | United States of America. Texas. Ward Co. 3 1/2 miles northwest of Monahans. | | 3963796 |  |
| Croton dioicus Cav. | L. C. Higgins 17480 | United States of America. Texas. Culberson Co. Junction of Highways 62-180 and 54 east of the salt flats. | | 3963798 |  |
| Croton dioicus Cav. | B. H. Warnock W198 | United States of America. Texas. Brewster Co. in upper Green Valley, Glass Mts. | | 3963799 |  |
| Croton dioicus Cav. | D. S. Correll 31696 | United States of America. Texas. Ward Co. About water-filled quarries, 5.5 mi. east of Barstow. | | 3963800 |  |
| Croton dioicus Cav. | L. C. Higgins 10315 | United States of America. Texas. Martin Co. 18 miles north of Midland on Hwy 349. | | 3963801 |  |
| Croton dioicus Cav. | M. B. Croft 212 | United States of America. Texas. Duval Co. San Diego. | | 3963804 |  |
| Croton dioicus Cav. | | | | 03974666 |  |
| Croton dioicus Cav. | | | | 3974667 |  |
| Croton dioicus Cav. | D. M. Bates 1484 | Mexico. Coahuila. ca. 25 km S of Sabinas. | | 3974668 |  |
| Croton dioicus Cav. | P. A. Fryxell 1365 | United States of America. Oklahoma. Carter Co. Lake Murray. | | 3974669 |  |
| Croton dioicus Cav. | | | | 3974676 |  |
| Croton dioicus Cav. | D. Seigler DS9139 | Mexico. Chihuahua. 5 miles south of Ciudad Juarez, Chihuahua, on Mexico 45. | | 3974684 |  |
| Croton dioicus Cav. | D. Seigler DS8993 | Mexico. Coahuila. 1 mile north of San Carlos. | | 3974688 |  |
| Croton dioicus Cav. | | | | 3974690 |  |
| Croton dioicus Cav. | U. T. Waterfall 4983 | United States of America. Texas. Culberson Co. 17 miles northeast of Van Horn. | | 3963741 |  |
| Croton dioicus Cav. | U. T. Waterfall 3883 | United States of America. Texas. El Paso Co. along Highway #62 between El Paso and Heuco, 6 to 16 miles east of El Paso. | | 3963772 |  |
| Croton dioicus Cav. | U. T. Waterfall 3884 | United States of America. Texas. El Paso Co. along Highway #62 between El Paso and Heuco, 6 to 16 miles east of El Paso. | | 3963738 |  |
| Croton dioicus Cav. | P. Hoglund s.n. | United States of America. Texas. Eagle Pass-Del Rio. | | 3963764 |  |
| Croton dioicus Cav. | G. C. Nealley 460 | United States of America. Texas. Presidio Co. Chinatis, W. Tex. | | 3963736 |  |
| Croton dioicus Cav. | J. M. Bigelow s.n. | United States of America. Texas. arroyo opposite Presidio del Norte on the Rio Grande. | | 3963732 |  |
| Croton dioicus Cav. | L. C. Hinckley 813 | United States of America. Texas. Presidio Co. near Rio Grande. Ruidosa-Presidio road. | | 3963728 |  |
| Croton dioicus Cav. | L. C. Hinckley 813 | United States of America. Texas. Presidio Co. Rio Grande near Chinati Mts. | | 3963765 |  |
| Croton dioicus Cav. | C. Parry s.n. | United States of America. Texas. El Paso Co. Frontera + below Elizario. | | 3963731 |  |
| Croton dioicus Cav. | L. C. Higgins 17564 | United States of America. Texas. Presidio Co. about 6 miles east of Presidio along highway 170, near the Rio Grande River. | | 3963802 |  |
| Croton dioicus Cav. | C. L. Hitchcock 4329 | United States of America. Texas. El Paso Co. 10 miles north of Guadelupe Canyon; on El Paso-Carlsbad Highway; 100 mi. east of El Paso. | | 3963754 |  |
| Croton dioicus Cav. | T. L. Steiger 593 | United States of America. Texas. Reeves Co. Toyahvale. (north of Davis Mts.). | | 3963766 |  |
| Croton dioicus Cav. | T. L. Steiger 594 | United States of America. Texas. Reeves Co. Toyahvale. (north of Davis Mts.). | | 3963769 |  |
| Croton dioicus Cav. | T. L. Steiger 595 | United States of America. Texas. Reeves Co. Toyahvale. (north of Davis Mts.). | | 3963767 |  |
| Croton dioicus Cav. | H. C. Hanson 566 | United States of America. Texas. Reeves Co. Fort Stockton to Pecos River. | | 3963781 |  |
| Croton dioicus Cav. | J. K. Small 12001 | United States of America. Texas. Uvalde Co. Chaparral east of Uvalde. | | 3963803 |  |
| Croton dioicus Cav. | L. C. Hinckley 1280 | United States of America. Texas. Terrell Co. Highway 90, 26 m. west Langtry. | | 3963759 |  |
| Croton dioicus Cav. | E. Whitehouse 521 | United States of America. Texas. Midland Co. Midland. | | 3963707 |  |
| Croton dioicus Cav. | E. Whitehouse 522 | United States of America. Texas. Ozona-Sheffield. | | 3963735 |  |
| Croton dioicus Cav. | E. Whitehouse 523 | United States of America. Texas. Eden-San Angelo. | | 3963733 |  |
| Croton dioicus Cav. | E. Whitehouse 19642 | United States of America. Texas. Brewster Co. Big Bend National Park, Sublett Ranch on Rio Grande River. | | 3963785 |  |
| Croton dioicus Cav. | E. Whitehouse s.n. | United States of America. Texas. El Paso Co. Hueco sand hills. | | 3963794 |  |
| Croton dioicus Cav. | J. Reverchon 2525D | United States of America. Texas. plains on the Colorado, West Texas. | | 3963758 |  |
| Croton dioicus Cav. | J. Reverchon 2525D | United States of America. Texas. on the Colorado, West Texas. | | 3963805 |  |
| Croton dioicus Cav. | A. C. V. Schott s.n. | United States of America. Texas. Rio Bravo del Norte. near the Puercos [Pecos]. | | 3963755 |  |