Year
1999
1999
Citation
Phipps, J.B. 1999. The relationships of the American black-fruited hawthorns Crataegus erythropoda, C. rivularis, C. saligna and C. brachyacantha to C. ser. Douglasianae (Roaceae). Sida. 18(3):647-660.
Keywords
Reference Code
A99PHI01NMUS
A99PHI01NMUS
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