Strother, 2019. Flora of North America, vol. 19: 383 Document reference Strother, J. L., 2019. Osteospermum spinescens Thunberg. Flora of North America, vol. 19: 383Web http://beta.floranorthamerica.org/Osteospermum_spinescensCitation key Strother, 2019Datasheets Osteospermum (Osteospermum spinescens)
