]> Eponymy: Pentachaeta aurea Nuttall subsp. allenii Keil (2008). Research: pollination, insect-plant interactions, systematics & ecology of Platanus (Platanaceae). [collector note: Type of Pentachaeta aurea Nutt. subsp. allenii Keil: CSUF, OBI, RSA, UC; other collections: CSUF, IRVC, JEPS, MIN, OBI, RSA, SFSU, UCR, WIS] Botany Allen, Robert Lee Allen, Robert Lee R. L. Allen 1959