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Key to Myriopus
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&keyid=40384
1 Lower leaf surface densely white-pubescent; calyx lobes subulate or triangular-subulate; leaves linear to narrowly lanceolate | |
1 Lower leaf surface glabrous or inconspicuously pubescent; calyx lobes triangular to triangular lanceolate; leaves narrowly lanceolate to ovate or elliptic (to 4 cm wide) |