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Eurybia spectabilis (purple wood-aster)
...more free-standing stems. Disk flower lobe number: 5. Seed hairs uniform: all the pappus hairs are...
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Decodon verticillatus (swamp-loosestrife)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Style relative length: ...
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Bidens hyperborea (northern beggar-ticks)
...more free-standing stems. Leaf blade tip: the tip of the leaf blade is rounded, with no point. Ovary hairs: ...
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Oligoneuron album (white flat-topped-goldenrod)
...more free-standing stems. Leaf blade shape: the leaf blade is oblanceolate (lance-shaped, but with the widest point above the middle of the leaf blad...
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Rudbeckia laciniata (green-headed coneflower)
...more free-standing stems. Leaf blade base shape: the base of the leaf blade is rounded. Seed hair tuft color: ...
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Euthamia graminifolia (common grass-leaved-goldenrod, flat-top goldentop)
...more free-standing stems. Scale tip: NA. Flower type in flower heads: the flower head has tubular ...
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Arenaria serpyllifolia (thyme-leaved sandwort)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Leaf variation: ...
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Solidago canadensis (Canada goldenrod)
...more free-standing stems. Ray length: 0.5 mm–1.5 mm. Flowering stem cross-section: the flowering stem is...
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Dianthus deltoides (maiden pink)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Bulblets replace flowers: ...
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Symphyotrichum tenuifolium (perennial saltmarsh American-aster)
...more free-standing stems. Leaf type: leaves are simple (i.e., lobed or unlobed but not separated into leaflets). Leaf blade ...