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Erechtites hieraciifolius (American burnweed)
...more free-standing stems. Leaf blade base: the leaf has a distinct petiole. Leaf stalk: the leaves...
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Lactuca hirsuta (tall hairy lettuce)
...more free-standing stems. Leaves on stem: there is at least one full leaf above the base of the flowering stem. Width of flo...
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Antennaria howellii (small pussytoes)
...more free-standing stems. Spines on plant: the plant has no spines. Horizontal rooting stem: there...
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Bidens connata (purple-stemmed beggar-ticks)
...more free-standing stems. Leaf blade veins: the leaf blade has one main vein running from the base towards the tip. Seed hai...
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Terms of Use
...royalty-free permanent license for the worldwide use and/or sublicense of such materials. Such license shall include the right to exploit any proprietary rights in the posting or submission. LINKING D...
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Group 5: Woody angiosperms with alternate leaves: Dichotomous Key
...bracteate, free from the bract; stamens 4–many, distinct (shortly connate at the base in Halesia, but that species with 4-merous, gamopetalous flowers) 43a. Pith diaphragmed; gynoe...
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Cerastium strictum (American field chickweed)
...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. Growth form: ...
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Utricularia intermedia (flat-leaved bladderwort)
...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. Bracts in plantain (Plantago): ...
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Stellaria graminea (grass-leaved starwort, grass-leaved stitchwort)
...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. Length of flower stalk: ...
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Symphyotrichum novi-belgii (New York American-aster)
...more free-standing stems. Peduncle hair type: the hairs on the peduncles are simple (not branched), don’t have glands, and are not woolly. ...