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Achillea alpina L.
Achillea sibirica Ledeb.
11 photos
The "Siberian yarrow, ITIS lists no varieties or subspecies.
It differs from A. millefolium by having
shorter ray flowers and a leaf which is pinatifid to a lesser degree.
ITIS Taxonomic Serial No. 780142
1. August 8, 2007. One of the many pollinators which visit this species.
2. August 8, 2007. Same as above but with an additional visitor
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 3. August 16, 2014. A. alpina, note the leaf and the numerous small ray flowers. |
4. August 16, 2014. A. alpina above with the small ray flowers. A. millefolium below with the larger but less numerous ray flowers. |
 5 . Late May. Both species of Achillea are common roadside plants. |
 6. Late June. This plant found in a mined area is small considering the time of year. Note the red leaves which are also present in photo 7. The relatively narrow mid-vein region and degree of pinnatifidity indicate that this is millefolium rather than sibirica. |
 7. Early July. The leaf is pinnatifid to a greater degree at the end |
 8. August 16, 2014. A. sibirica on the bottom and A. millefolium on the top. |
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 10. Early October. The yarrows are sturdy plants and the dead plant will often be found the following year as seen in photo 9. |
 11. July 20, 2016. Bee visiting. |
Photos 1, 2, 6 and 7 near upper Half Dollar
Photos 3, 4 and 8 taken along Upper Bottom
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