Figure 4 from: Wagner W, Clark J, Lorence D (2014) Revision of endemic Marquesas Islands Bidens (Asteraceae, Coreopsideae). PhytoKeys 38: 37-67. https://doi.org/10.3897/phytokeys.38.7609

Figure 4 - Bidens uapensis (F. Brown) Sherff A Distal part of plant B Leaf surface (underside) C Head showing rays and disk florets D Head with ray florets removed to show involucral bracts E–F Ray florets, showing variation G–H Disk florets, showing variation. Drawn from Dunn 241 (US) [A–E, G], Perlman & Wood 19083 US [F, H].