Very similar to Sweet Cicely (Osmorhiza claytonii), but not hairy, which makes an easy distinction between the two species. These plants were growing in Bird Park, Mount Lebanon.
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Long-Styled Sweet Cicely (Osmorhiza longistylus)
Photographed May 8. 
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Golden Alexanders (Zizia aurea)
Photographed April 21. The bright golden flowers light up the edge of the woods in mid-spring; they belong to the umbel-bearing family Umbelliferae or Apiaciae, the parsley or carrot family, and they may remind you of a yellow version of Queen Anne’s Lace. These plants were blooming in Bird Park (in Mount Lebanon) and the Kane Woods Nature Area (Scott Township).
For a description of the species, see the Zizia aurea reference page.
Photographed April 24. -
Goutweed (Aegopodium podagraria)
Photographed June 12. A foreign invader that likes damp, shady spots, this plant can be found in abundance in the stream valleys in Schenley Park.
For a description of the species, see the Aegopodium podagraria reference page.
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A Walk in Bird Park, Mount Lebanon
Wild Geranium (Geranium maculatum). Mid-spring flowers are at their peak in the woods, but some of the earlier spring flowers are still blooming.
Wild Geranium (Geranium maculatum), photographed May 16. 
Dame’s Rocket (Hesperis matronalis). 
Virginia Waterleaf (Hydrophyllum virginianum). 
Long-Styled Sweet Cecily (Osmorhiza longistylis). 
Long-Styled Sweet Cecily (Osmorhiza longistylis). 
Blue Phlox (Phlox divaricata). 
Creeping Buttercup (Ranunculus repens). -
Poison Hemlock (Conium maculatum)
Poison Hemlock grows very tall very fast. It bears innumerable compound umbels of flowers like Queen Anne’s Lace, but the plants are much larger (and of course much more poisonous), usually with a whitish bloom on the stalks. It was almost certainly introduced into this country intentionally, which tells us more about our ancestors than we wanted to know.
These plants were growing in South Side Park, where they were photographed May 30.
For a fuller description, see the Conium maculatum reference page.
