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Lathyrus sativus (white vetchling)
...toxin-free variety was recently developed. In New England, white vetchling has been collected only in Massachusetts. Habitat: anthropogenic (man-made or disturbed habitats), meadows and fields ...
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Sagina nodosa (knotted pearlwort)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Petal base: ...
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Primula laurentiana (bird's-eye primrose)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Flower description: ...
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Symphyotrichum concolor (eastern silver American-aster)
...more free-standing stems. Leaflet number: 0.0 NA–0.0 NA. Bracts: there are at least two distinct forms o...
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Gypsophila elegans (showy baby's-breath)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Fruit locules: ...
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Lysimachia maritima (sea-milkwort)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Leaf blade flatness: ...
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Symphyotrichum ontarionis (Ontario American-aster)
...more free-standing stems. Leaf blade shape: the leaf blade is elliptic (widest near the middle and tapering at both ends). S...
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Bidens tripartita (three-lobed beggar-ticks)
...more free-standing stems. Peduncle length: 10.0 mm–80.0 mm. Hairs on upper side of leaf blade: the upper...
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Solidago caesia (axillary goldenrod, blue-stem goldenrod)
...more free-standing stems. Seed hair tuft length: 2.0 mm–3.7 mm. Bract tip shape: the tips of the bracts ...
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Bidens polylepis (Ozark beggar-ticks)
...more free-standing stems. Bract texture: the bracts appear thin, flexible and nearly translucent. Ovary wing number: ...