Crepis sidneyi is recorded from Northern Australia and Singapore.
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| Thanks to Oscar Reverter-Gil for the SEM. |
Original description: Crepis sidneyi Reverter-Gil, Souto & Fernández-Pulpeiro, 2011
Locality: Northern Australia
Holotype: NHMUK 1882.2.23.16; Paratype: NHMUK 1929.9.13.82
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