Approximate location
Maybe Rhinacanthus nasutus var. longiflorus Benoist
Small herb, quite rare.
Small herb, about 20 cm tall, flower petals too long for D. setigera. The hairy leaves and solitary flowers maybe D. transvaalensis, but far from D. transvaalensis known distribution.
Perennial herb with 1-few upright stems c. 50 cm tall. Leaves elliptic, c. 10 x 3-4 cm. Inflorescences axillary?, single flowered?. Corolla c. 2-2.5 cm long.
Growing in Itigi forest patches and thicket in sandy loam soil with heavy leaf litter.
10 to 15 plants observed within a few km's. Very low growing.
Herbarium reference: MDF-RAN197
Top of hill sandstone hill with sand covered in small sandstone stones.
At least 25 plants seen in area 7mx7m.
Here are separate observations of similar plants within 5 m of each other. https://www.inaturalist.org/observations?on=2024-01-14&place_id=27444&taxon_id=82268
most plants flowering had the flower fallen off.
Sand was very wet, There had been about 100 mm of rain a few days previously, measured about 1km away in my garden.
see other observations which may be the same species on sandstone or sand in Serowe.
Sand
https://www.inaturalist.org/observations/103068579
Sandstone
https://www.inaturalist.org/observations/196038209
op of sandstone hill with sand covered in small sandstone stones.
At least 25 plants seen in area 7mx7m.
Here are separate observations of similar plants within 5 m of each other. https://www.inaturalist.org/observations?on=2024-01-14&place_id=27444&taxon_id=82268
most plants flowering had the flower fallen off.
Sand was very wet, There had been about 100 mm of rain a few days previously, measured about 1km away in my garden.
see other observations which may be the same species on sandstone or sand elsewhere in Serowe.
Sand
https://www.inaturalist.org/observations/103068579
Sandstone
https://www.inaturalist.org/observations/196038209
top of sandstone hill with sand covered in small sandstone stones.
At least 25 plants seen in area 7mx7m.
Here are separate observations of similar plants within 5 m of each other. https://www.inaturalist.org/observations?on=2024-01-14&place_id=27444&taxon_id=82268
most plants flowering had the flower fallen off.
Sand was very wet, There had been about 100 mm of rain a few days previously, measured about 1km away in my garden.
see other observations which may be the same species on sandstone or sand elsewhere in Serowe.
Sand
https://www.inaturalist.org/observations/103068579
Sandstone
https://www.inaturalist.org/observations/196038209
top of sandstone hill with sand covered in small sandstone stones.
At least 25 plants seen in area 7mx7m.
Here are separate observations of similar plants within 5 m of each other. https://www.inaturalist.org/observations?on=2024-01-14&place_id=27444&taxon_id=82268
most plants flowering had the flower fallen off.
Sand was very wet, There had been about 100 mm of rain a few days previously, measured about 1km away in my garden.
see other observations which may be the same species on sandstone or sand elsewhere in Serowe.
Sand
https://www.inaturalist.org/observations/103068579
Sandstone
https://www.inaturalist.org/observations/196038209
top of sandstone hill with sand covered in small sandstone stones.
At least 25 plants seen in area 7mx7m.
Here are separate observations of similar plants within 5 m of each other. https://www.inaturalist.org/observations?on=2024-01-14&place_id=27444&taxon_id=82268
most plants flowering had the flower fallen off.
Sand was very wet, There had been about 100 mm of rain a few days previously, measured about 1km away in my garden.
see other observations which may be the same species on sandstone or sand elsewhhere in Serowe.
Sand
https://www.inaturalist.org/observations/103068579
Sandstone
https://www.inaturalist.org/observations/196038209
a few plants taken from this population and placed in pot with sand/stones from the same area on 14 Jan 24. Flowered on 17 Jan 24
The plants have been well watered but did not flower again. By 15 March 24 one plant remained green
https://www.inaturalist.org/observations/202506176
and 3 had dried up and had two open fruit. three seeds were found attached to the open fruit. see
https://www.inaturalist.org/observations/202504842
https://www.inaturalist.org/observations/202505155
On sandstone. Abundant in small area 10m x 10m
I think it's this....if so may be a new locality?
Medium shrub, 1.3m, common.