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Equisetum arvense (field horsetail)
...NA–14.0 NA. Cone length: 17.0 mm–40.0 mm. Stem differences: the vegetative and reproductive stems differ ...
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Muhlenbergia uniflora (bog muhly)
... 1.3 mm–2.1 mm. Inflorescence type (general): the spikelets are borne on stalks or on branches. Leaf ligule t...
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Nuttallanthus canadensis (oldfield-toadflax)
... 1.0 mm–1.0 mm. Number of branches in umbel: 0.0 NA–0.0 NA. Leaf blade length: 15.0 mm–30.0 ...
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Oryzopsis asperifolia (roughleaf ricegrass, white-grained rice grass)
...0.5-1.8 mm wide, lemma awns 1-2 mm long, and panicle branches bearing two or more spikelets (vs. O. asperifolia, with uppermost leaves bladeless or with blades mostly shorter than 1 cm, leaf blades 4-...
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Tiarella cordifolia (foam-flower)
...mm–11.0 mm. Leaf stalk attachment to leaf: the petiole attaches at the basal margin of the leaf blade. Sepal orientation: ...
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Symphyotrichum ciliolatum (Lindley's American-aster)
... 11-15. Bracts: the bracts in separate cycles are similar or gradually changing from the outer to inner cycles. ...
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Gratiola neglecta (clammy hedge-hyssop)
... 1.0 None–1.0 None. Leaf blade length: 10.0 mm–70.0 mm. Pinnately compound leaf type: NA....
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Rumex acetosa (common dock)
... 1.0 NA–1.0 NA. Leaf stalk attachment to leaf: the petiole attaches at the basal margin of the leaf blade. Pl...
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Eleocharis robbinsii (Robbins' spikesedge)
...(1801-1879), a Massachusetts doctor and amateur botanist. Habitat: lacustrine (in lakes or ponds), riverine (in rivers or streams), shores of rivers or lakes All Characteristics: Speci...
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Viola tricolor (garden violet)
... 1.5 mm–1.7 mm. Interior flower disk: the flower does not have an interior disc. Hooked hairs on underside of...