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  • Taxa Solidago houghtonii, Solidago nitida, Solidago ohioensis, Solidago ptarmicoides, Solidago riddellii, Solidago rigida (House) Semple & Gandhi Sida 21:
    5 KB (236 words) - 20:02, 5 November 2020
  • Basionym: Aster ptarmicoides Torrey & A. Gray Fl. N. Amer. 2: 160. 1842 Synonyms: Diplopappus albus (Nuttall) Lindley ex Hooker Diplopappus ptarmicoides (Nees)
    6 KB (582 words) - 19:33, 6 November 2020
  • sometimes also in glomerules; phyllaries usually striate (except in S. ptarmicoides); Great Plains, Great Lakes region, glades and savannas in e United States
    13 KB (793 words) - 19:33, 8 December 2021
  • Solidago houghtonii can be difficult to distinguish from S. ohioensis × S. ptarmicoides hybrids because both have hairy peduncles in arrays. The hybrids have
    5 KB (610 words) - 20:02, 5 November 2020
  • flatlands region to the southwest. Hybrids between S. ohioensis and S. ptarmicoides occasionally occur where the two parents are sympatric. Those hybrids
    4 KB (394 words) - 20:02, 5 November 2020