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Solidago canadensis · kanadinė rykštenė
- Canada Goldenrod
- Kanadische Goldrute
- Kanādas zeltgalvīte
- nawłoć kanadyjska
https://en.wikipedia.org/wiki/Solidago_canadensis Native to northeastern and north-central North America, invasive in several areas worldwide. Solidago altissima (aukštoji rykštenė) is part of the Solidago canadensis species complex. Similar invasive Solidago species in Lithuania: Solidago canadensis · kanadinė rykštenė (Canada Goldenrod)
- flowers: inflorescence pyramidal in shape, all on one side of flower stems
- leaves: one midvein, two side veins diverge from midvein near the leaf base and run to end of leaf; sharply toothed; lowest gone by flowering time; biggest just below the flower inflorescence, high up on stem, lots of leaves, feel a bit rough
- stem: pubescent, but not all the way to the base
- flowers: long flowering season (Jul-Nov); flower heads obviously larger than the other two species in this group
- leaves: triple-veined
- stem: pubescent all the way to the base
- flowers: earlier than the other two species of this group (in spite of its name); inflorescence more open than the other two species of this group
- leaves: "thinly" leathery, larger
- stem: very smooth and glaucous the entire length; within inflorescence sometimes not smooth
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