Veronica spicata L., Sp. Pl. 10 1753. ;
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Europe to Central Siberia and NW. Xinjiang: Albania, Altay, Austria, Baltic States, Belarus, Bulgaria, Central European Rus, Czechoslovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Hungary, Italy, Kazakhstan, Krasnoyarsk, Krym, Mongolia, North Caucasus, North European Russi, Northwest European R, Norway, Poland, Romania, South European Russi, Spain, Sweden, Switzerland, Turkey-in-Europe, Ukraine, West Siberia, Xinjiang, Yugoslavia; Introduced into: Connecticut, Netherlands, New Hampshire, New York, Ontario, Primorye, Québec as per POWO;
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Veronica spicata from California-GS2502202
Veronica spicata L.
Common name: Spiked Speedwell
Perennial herb with lanceolate toothed leaves and small pink to blue flowers in erect up to 30 cm long spikes.
Clicked from Filoli Gardens, Woodside, California, 22-6-2019.
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Seen in New Jersey during visit in June,2017.
Since it is in a garden, here is a list of possible cultivars:
https://garden.org/plants/search/text.php?q=veronica+longifolia
Not in that list but there are several other possibilities (too many!).
It may be Veronica Magic Show (Trade Mark) Hocus Pocus PP23853.
http://www.perennialresource.com/variety.php?ID=VERHP
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References:
POWO Catalogue of Life The Plant List Ver.1.1 Wikipedia
https://plants.ces.ncsu.edu/plants/veronica-spicata/
https://www.thespruce.com/veronica-plant-profile-2132565
https://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0105+2534