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Houstonia purpurea (large bluet)
...mostly 1.5–2.5 mm long at anthesis (vs. H. purpurea, with stem leaf blades broad-lanceolate to narrow-oblong, mostly 5–12 mm wide, rounded at the base, and sepals 3–6 mm long at anthesis).: ...
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Galium pilosum (hairy bedstraw)
...clearings.1a. Pubescence of stem and leaves ± straight, ± spreading … 16a. G. pilosum var. pilosum1b. Pubescence of stem and leaves of short, upwardly curved hairs ...
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Crataegus dissona (northern hawthorn)
...with 12-20 stamens and persistent sepals on pome elevated on a conspicuous collar 0.5-1.7 mm tall (vs. C. dissona, with flowers with 5-10 stamens and persistent sepals on pome nearly sessile or slight...
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Galium kamtschaticum (boreal bedstraw)
...0.15 mm–0.15 mm. Leaf type: the leaves are simple (i.e., lobed or unlobed but not separated into leaflets). Flower pe...
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Valeriana uliginosa (marsh valerian)
...with 11–21 leaflets, and the rachis and abaxial surface sparsely pubescent (vs. V. uliginosa, with basal leaf blades simple or sometimes with a single pair of basal lobes, stem leaf blades with 3–13 l...
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Centaurea benedicta (blessed knapweed)
...mm–11.0 mm. Width of flower head base: 20.0 mm–25.0 mm. Bract texture: the bracts have a similar texture ...
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Salix nigra (black willow)
...blades 11-43 mm wide, and capsules 5-7 mm tall (vs. S. nigra, which are tall shrubs or trees 5-20 m tall, leaf blades mostly 7.5-17 mm wide, and capsules 3-5 mm tall).: Salix lucida ...
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Atriplex patula (spearscale orache)
... 1. Leaf blade length: 25.0 mm–120.0 mm. Leaf blade shape: the leaf blade is oblong (rectang...
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Aegilops cylindrica (jointed goat-grass)
... 1.0 NA–1.0 NA. Stem hairs: the stem is nearly to completely hairless. Leaf margin glands: ...
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Phacelia purshii (purple scorpion-weed)
... 1. Leaf blade shape: the leaf blade is rhombic (roughly diamond-shaped). Petal number: 5.0 ...