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Salix humilis (prairie willow)
...15-32 mm long).: Salix discolor leaf blades 2-5 x 0.7-1.2 cm, borne on leaf stalks 0.5-3 mm long, and fruiting catkins 10-18 mm long (vs. S. humilis, with leaf blades ...
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Eubotrys racemosa (swamp deciduous dog-laurel, swamp dog-hobble)
...with 2 bracteoles borne near the base (vs. E. racemosa, with leaf blades deciduous, membranaceous, dull, and each pedicel with 2 bracteoles borne near the apex just below the calyx).: Leuc...
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Polygala ambigua (alternate milkwort)
...1/2 to 2/3 as long as fruit, most nodes, except sometimes the upper, bearing 2–5 leaves, and axis of raceme not or scarcely elongating in fruit, the lowest internode mostly 0.3–1.7 mm long (vs. P. amb...
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Asclepias quadrifolia (four-leaved milkweed)
... 2.0 None–2.0 None. Stipule features: NA. Sepal and petal color: the sepals are dif...
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Veronica chamaedrys (germander speedwell)
...NA–22.0 NA. Sap: the sap is clear and watery. Plant odor: the plant does not have much of a smell. ...
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Amelanchier bartramiana (Bartram's serviceberry, mountain shadbush)
Amelanchier bartramiana (Tausch) M. Roemer. Bartram's serviceberry, mountain shadbush. Woody Plants Woody Angiosperms Facts About: Mountain shadbush grows best in cool settings ...
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Viola cucullata (blue marsh violet)
...long, 2 or more times as long as wide, and all petals without hairs (vs. V. cucullata, with the nectary spur shorter, as long as 3.2 mm, less than 2 times as long as wide, and lateral petals with shor...
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Mirabilis albida (pale umbrella-wort)
...1–2 mm long and anthocarp relatively smooth on the ridges (vs. M. albida, with the stem pubescent in 2 strips on each internode with short, curved hairs up to 0.5 mm long and anthocarp coarsely tuberc...
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Galium triflorum (fragrant bedstraw)
...1.5-2 mm in diameter).: Galium aparine fruit without hairs and leaf blades 8-20 × 2-6 mm (vs. G. triflorum, with fruit covered with hairs that are hooked at the tip an...
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Plantago maritima (seaside plantain)
...with 2 stamens, corolla lobes 0.25–0.5 mm long, and plants annual (vs. P. maritime, with flowers with 4 stamens, corolla lobes 0.7–2.5 mm long, and plants perennial).: Plantago pusilla ...