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Calystegia sepium (hedge false bindweed)
...(15–) 17–23 (–25) mm long … 2b. C. sepium ssp. sepium2b. Sinus of leaf blade commonly U-shaped; corolla white or pink, usually 45–64 mm long; stamens (19–) 23–30 (–32) mm lon...
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Sparganium americanum (American bur-reed)
...mm–1.2 mm. Underground organs: the plant has a rhizome (a horizontal underground stem with roots growing from it). Fruit beak...
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Quercus macrocarpa (burr oak)
...(0–) 6–20 (–25) mm long in Q. macrocarpa and (20–) 40–70 mm long in Q. bicolor. Native to North America? Yes and no (some ...
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Cyperus lupulinus (Great Plains flatsedge)
...5–22 floral scales that are green-yellow to stramineous and 2.5–4 mm long; anthers 0.6–1 mm long; spikelets 3–4 mm thick … 14a. C. lupulinus var. lupulinus1b. Spiklets 3–7...
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Glyceria obtusa (Atlantic manna grass)
...15–25 cm long, with internodes 2–7 cm long (vs. G. obtuse, with the inflorescence erect, ovoid to obloid, with 3–8 branches at each node, mostly 5–15 cm long, with internodes up to 2.5 cm long).: ...
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Poa annua (annual blue grass)
...mm–2.2 mm. Lower glume length: 1.5 mm–2.4 mm. Spikelet shape: the spikelets are ovate (egg-shaped, widest...
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Robinia pseudoacacia (black locust)
... 200.0 mm–300.0 mm. Leaf blade veins: the leaf blade has one main vein running from the base toward the tip. ...
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Paronychia canadensis (smooth forked whitlow-wort)
...S2), concern (uncertain) (code: C*) Vermont: extremely rare (S...
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Centaurea nigra (black knapweed)
...ships' ballast. Habitat: anthropogenic (man-made or disturbed habitats), meadows and fields All Characteristics: Specific habitat: meadows or fields. ...
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Salicornia bigelovii (dwarf glasswort)
...inflorescences 2.9-5 mm thick (vs. S. bigelovii, with leaves with a mucronate tip and inflorescences 4.5-6.2 mm thick).: Salicornia depressa Synonyms: ...