General data principles
Hard Fern
Pellaea calomelanos calomelanos
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 |
|---|---|
| Ferns of the Witwatersrand
Dec. 17, 2025, 7:08 a.m. |
|
Photo credits
You can see the credits underneath each photo of the species pages as well. Credits, in order of appearance:
- (c) Craig Peter, some rights reserved (CC BY-NC), uploaded by Craig Peter source
- (c) Johan Heyns, some rights reserved (CC BY-NC), uploaded by Johan Heyns source
- (c) Amanda Kalaku, some rights reserved (CC BY-NC), uploaded by Amanda Kalaku source
- (c) philipcalinikos, some rights reserved (CC BY-NC) source
- (c) Chris Wahlberg, some rights reserved (CC BY-NC), uploaded by Chris Wahlberg source
- (c) Manuel R Popp, some rights reserved (CC BY), uploaded by Manuel R Popp source
- (c) Gareth Preiss, some rights reserved (CC BY-NC), uploaded by Gareth Preiss source
- Rotational, no known copyright restrictions (public domain) source
- (c) Troos van der Merwe, some rights reserved (CC BY-NC), uploaded by Troos van der Merwe source
- (c) Ronald Flipphi, some rights reserved (CC BY-NC), uploaded by Ronald Flipphi source
- (c) Botswanabugs, some rights reserved (CC BY-NC), uploaded by Botswanabugs source
- (c) Matt Prinsloo, some rights reserved (CC BY-NC), uploaded by Matt Prinsloo source