Taraxacum kolymense, Achenes

Kirschner, Jan, Štěpánek, Jan & Buryy, Vladimir V., 2025, Towards a revision of Taraxacum sect. Borealia (Compositae, Crepidinae) in Siberia and the continental Far East, with special reference to the dandelions of the Altai and Kamchatka, Phytotaxa 679 (1), pp. 1-147 : 14-15

– Pollen grains of ± invariable size (pollen regular) ........................................................................................................................... 2 Pollen absent, or pollen grains of conspicuously variable size (pollen irregular) ............................................................................ 3 Achenes 4.3–4.7 mm long, red-brown or pinkish light grey-brown ....................................................................... 33. T. kolymense Achenes 5.2–5.6 mm long, whitish grey or light greyish ................................................................................... 30. T. leucocarpum Capitulum white or yellowish white ................................................................................................................................................. 4 Capitulum yellow ............................................................................................................................................................................. 8 Achenes light reddish-brown to dark red-brown .............................................................................................................................. 5 Achenes light greyish stramineous-brown or deep grey-olivaceous ................................................................................................ 6 Leaves with lateral segments patent ......................................................................................................................... 10. T. albescens Leaves with lateral segments conspicuously recurved............................................................................................. 8. T. stepanovae Achenes deep grey-olivaceous ............................................................................................................................... 9. T. anadyricum Achenes light greyish stramineous-brown ....................................................................................................................................... 7 Outer phyllaries usually lanceolate; leaves undivided or lobulate ............................................................................. 14. T. pingue Outer phyllaries usually ovate; leaves pinnatisect to pinnatifid .............................................................................. 11. T. candicans Stigmas pure yellow or slightly dirty yellow ................................................................................................................................... 9 Stigmas dark to medium discoloured ............................................................................................................................................. 16 Pollen absent ..................................................................................................................................................................... 1. T. hjeltii Pollen developed ............................................................................................................................................................................ 10 At least some outer phyllaries arcuate-patent; most of outer phyllaries more than 4 mm wide ........................... 5. T. platycranum Outer phyllaries not arcuate-patent; outer phyllaries narrower, usually much narrower than 4 mm ............................................. 11

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