The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- A Natural Arrangement of British Plants 2: 222, 226. 1822. (10 Jan 1822) (Nat. Arr. Brit. Pl.)
- Christenhusz, M. J. M., J. L. Reveal, A. K. Farjon, M. F. Gardner, R. R. Mill & M. W. Chase. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19: 55–70.
- Nasir, E. & S. I. Ali (eds). 1980-2005. Fl. Pakistan Univ. of Karachi, Karachi.
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