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Sagittaria rigida (sessile-fruited arrowhead)
...S2?) Maine: rare (S-rank: S2), special concern (c...
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Solanum triflorum (cut-leaved nightshade)
...10–25 flowers, and berry red (vs. S. triflorum, with leaf blades evidently pinnately lobed with mostly 5–9 linear to narrow-oblong lobes, inflorescence with mostly 2 or 3 flowers, and berry green).: ...
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Potentilla verna (spring cinquefoil)
... 20.0 mm–40.0 mm. Plant height: 1.0 cm–20.0 cm. Parasitism: the plant is not parasitic. ...
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Trifolium purpureum (purple clover)
...10–12 mm long and leaflets obovate or obcordate, 8–25 x 8–16 mm (vs. T. purpureum, with corollas 16–25 mm long and leaflets linear to elliptic-oblong, 20–50 x 2.5–5 mm).: Trifolium incarna...
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Lechea minor (thyme-leaved pinweed)
... 20.0 mm–50.0 mm. Stamen number: 10. Stamen number: 12. Pl...
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Carex radiata (eastern star sedge)
... 20.0 cm–80.0 cm. Scale length: 1.0 mm–2.5 mm. Lowest leaf blade width: 1.3 mm–1.9 mm....
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Echinacea purpurea (eastern purple coneflower)
...1.2 mm–1.2 mm. Leaf blade shape: the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both ends). ...
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Dysphania graveolens (fetid glandular-goosefoot)
... 23.0 cm–52.0 cm. Leaf arrangement: alternate: there is one leaf per node along the stem. Lifespan: ...
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Conringia orientalis (hare's-ear-mustard)
...siliques 2-2.5 mm wide, petals 7-12 mm long, and basal leaves +/- entire).: Brassica napus Synonyms: Brassica orientalis ...
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Iris domestica (blackberry-lily)
... 25.0 mm–25.0 mm. Form of style: the style is branched above the base. Fruit width: 15.0 ...