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| Status: | Native | 
| Description: | |
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| Notes: | |
| Derivation of specific name: | grandiflorus: large flowered | 
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| Spot characters: | Display spot characters for this species | 
| Literature: | Stannard, B.L. (1988). Nyctaginaceae Flora Zambesiaca 9(1) Page 20. Troupin, G. (1978). Nyctaginaceae Flore du Rwanda Spermatophytes Volume I Pages 206 - 207. (Includes a picture). |