Comparison of the pollen morphology of Cirsium Mill. subsect. Australicirsium Kitam A C. arisanense Kitam B C. hosokawae Kitam C C. taiwanense Y.H.Tseng & Chih Y.Chang 1 polar view 2 equatorial view 3 colporate view. Scale bar: 30 μm.

 
 
  Part of: Chang C-Y, Tzeng H-Y, Tseng Y-H (2021) Cirsium taiwanense (Compositae, Cirsium sect. Onotrophe, subsect. Australicirsium), a new species from Taiwan. PhytoKeys 183: 35-53. https://doi.org/10.3897/phytokeys.183.70119