The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Holotype: Griffiths, D. 1908. Annual Rep. Missouri Bot. Gard. 19: 261.
- Holotype: Griffiths, D. 1911. Annual Rep. Missouri Bot. Gard. 22: 27.
To request an improvement, please leave a comment on the page. Thank you!