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Key to Solidago, Key H: Key to "bog wand goldenrods" -- with narrowly cylindrical (sometimes broader) inflorescences and sheathing petiole bases [subgenus Pleiactila, section Maritimae]
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https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&keyid=40620
1 Leaves somewhat fleshy, the stem leaves reduced but not very markedly so; inflorescence almost always with lower branches strongly recurved with secund heads; [usually of maritime or otherwise saline habitats, rarely in nontidal marshes or swamps]. | |
1 Leaves not fleshy (rarely so in S. stricta of near coastal situations), the stem leaves much reduced relative to the basal; inflorescence showing only relatively weak tendency to recurved branches with secund heads; [inland habitats, except rarely S. stricta]. | |
3 Basal leaves 0.7-8 cm wide; plants short, 4-10 (-15) dm tall, typically fairly stout; [mainly of the Mountains (and the Coastal Plain from e. VA northwards), e. VA, w. NC, nw. SC, ne. GA, and northward]. | |
5 Basal leaves 0.7-2.5 cm wide; stem leaves linear or lanceolate (the lower cauline leaves 0.7-3 cm wide); disc flowers 9-15; [PA and WV (?) northwards] | |
5 Basal leaves 3-8 cm wide; stem leaves oblong-lanceolate (the lower cauline leaves 3-8 cm wide); disc flowers 4-8; [scattered in NC and TN; less sparsely distributed northwards] | |
3 Basal leaves 0.2-2.5 (-5) cm wide; plants short to tall, 3-20 dm tall, typically very slender; [Coastal Plain and lower Piedmont and southward]. | |
6 Basal leaves 0.7-2.5 (-5) cm wide; [collectively more widespread]. | |
7 Mid stem leaves mostly elliptic, oblanceolate, or lanceolate, < 7 × as long as wide; lower floral branches shorter, not remote (to 20 cm and virgate in S. stricta). | |