General data principles
Bicolour Vernonia
Hilliardiella oligocephala
Inclusion rationale
Why did we include this species on our website? Because it was mentioned in the following source(s):
Features data
The following sources have provided data on features for this species.
| Source document | Features |
|---|---|
| PlantZAfrica
Jan. 1, 2026, 8:34 a.m. |
|
| Egoli Granite Grassland species list, with plants recommended for landscaping
May 22, 2026, 11:31 p.m. |
|
Photo credits
You can see the credits underneath each photo of the species pages as well. Credits, in order of appearance:
- (c) Richard Gill, some rights reserved (CC BY-NC), uploaded by Richard Gill source
- (c) Troos van der Merwe, some rights reserved (CC BY-NC), uploaded by Troos van der Merwe source
- (c) Hildegard Klein, some rights reserved (CC BY), uploaded by Hildegard Klein source
- (c) fayne, some rights reserved (CC BY-NC), uploaded by fayne source
- (c) fayne, some rights reserved (CC BY-NC), uploaded by fayne source
- (c) fayne, some rights reserved (CC BY-NC), uploaded by fayne source
- (c) Rouxne Botha, some rights reserved (CC BY-NC), uploaded by Rouxne Botha source
- (c) Simon Tamblyn, some rights reserved (CC BY), uploaded by Simon Tamblyn source
- (c) Emma (Ferreira) Swanepoel, some rights reserved (CC BY-NC), uploaded by Emma (Ferreira) Swanepoel source
- (c) rqy-yong, some rights reserved (CC BY-NC-ND), uploaded by rqy-yong source