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Sporobolus clandestinus (hidden dropseed)
... 2.2 mm–1.8 mm. Lemma awn length: 0.0 mm–0.0 mm. Lemma hairs: the lemma has fine hairs be...
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Mibora minima (early sand grass)
...only 2-10 cm (1-4 inches) tall, does not appear to be spreading in North America; its home range is in western Europe. However, that may change, as nurseries are beginning to offer this pretty little...
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Polypodium virginianum (rock polypody)
...NA–20.0 NA. Leaflet relative size: the bottom leaflets are about half as long as, to slightly longer than, the leaflets from the middle of the frond. ...
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Muhlenbergia sylvatica (woodland muhly)
...to 2 mm long, and anthers 0.3–0.5 mm long (vs. M. sylvatica, with the ligule 1–2.5 mm long, pedicels 0.8–3.5 mm long, and anthers 0.4–0.8 mm long).: Muhlenbergia mexicana ...
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Huperzia lucidula (shining firmoss)
...0.023 NA–0.029 NA. Spore leaf shape: the spore-bearing leaves are small and scale-like. Cone thickness: ...
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Wolffia borealis (northern water-meal)
...Vermont's Champlain Valley. Water-meal (Wolffia) species have no roots. In a study comparing northern water-meal with common duckweed (Lemna minor) and common duck-meal (Spirodela polyrrhiza), no...
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Lemna perpusilla (minute duckweed)
...(1982), but specimens are unknown. Mesotrophic to eutrophic waters of lakes, rivers, beaver flowages, and pools. The report of Lemna perpusilla from ME by Landolt (2000) was in error. T...
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Picea glauca (white spruce)
... 2.0 mm–4.0 mm. Seed cone scales: NA. Leaf glands: there are no glands on the under...
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Tragus racemosus (stalked burgrass)
...0.7–2.7 mm long (vs. T. racemosus, with upper glume 7-veined, 3.8–6.6 mm long, with mostly 6 or 7 longitudinal rows of spine-like projections, and panicle branches 2.1–4.8 mm long).: Trag...
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Lemna minor (common duckweed)
...mm–6.2 mm. Papilla on thallus: no. Root length: None mm–150.0 mm. Stamen number:...