Oldmansbeard Capegorse

Taxonomy
Scientific Name
Aspalathus usnoides C.H.Stirt. & Muasya
Higher Classification
Dicotyledons
Family
FABACEAE
Common Names
Oldmansbeard Capegorse (e)
National Status
Status and Criteria
Endangered B1ab(iii)+2ab(iii)
Assessment Date
2021/07/09
Assessor(s)
D.I.W. Euston-Brown & H. Mtshali
Justification
This Kouga Mountain species has a restricted distribution, with an extent of occurrence (EOO) of 467 km², and an area of occupancy (AOO) of 36 km². It occurs at five locations that continue to decline due to spreading alien invasive plants. As a reseeder, this short-lived species is also potentially vulnerable to fire-related population fluctuation. It therefore qualifies for listing as Endangered under criterion B.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape
Range
This species occurs in the Kouga Mountains to the north of Kareedouw in the Eastern Cape Province, South Africa.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Kouga Grassy Sandstone Fynbos, Kouga Sandstone Fynbos
Description
This shrub or small tree grows up to 5 m tall. It occurs on lower, steep, south facing slopes, at 300-400 m.a.s.l. It is short-lived and is a reseeder. It disappears from old fynbos that is older than about 15 years and exists only in seed form until the next fire.
Threats
Habitat along the river where this species occurs is threatened by spreading invasive alien species, including Hakea sericea and Acacia mearnsii. In addition, the valley where it occurs has less frequent fire than the more exposed slopes, and some parts may escape burning for long periods. Therefore, as a reseeder this species is likely to be negatively impacted by inappropriate land management, particularly infrequent fires. Monitoring is required.
Population

This species is localised to suitable habitat but following fire the species is locally common on the south facing slopes of Kouga Valley. Some of the subpopulations are inaccessible and hence difficult to monitor. The quality of habitat is declining as a result of the spread of invasive alien plants, the population trend is therefore inferred to be declining.


Population trend
Decreasing
Bibliography

Stirton, C.H. and Muasya, A.M. 2016. Seven new species and notes on the genus Aspalathus (Crotalarieae, Fabaceae). South African Journal of Botany 104:35-46.


Citation
Euston-Brown, D.I.W. & Mtshali, H. 2021. Aspalathus usnoides C.H.Stirt. & Muasya. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13

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Distribution map


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