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What's this plant (Apiaceae)?
There's a plant growing beneath a sugar maple on Main Street in
Concord, Massachusetts, and I haven't been able to figure out what it is. Here are some blurry cell phone photos. http://www.fileden.com/files/2006/8/...8/840A0472.JPG http://www.fileden.com/files/2006/8/...8/840A0472.JPG As you can see, it has compound umbels with tiny white flowers. The leaves divide into three, and the leaflets are deeply lobed and sometimes themselves divided into three. The stems are hairless and greenish-purple. The tiny fruits are about 6mm long, have 5 ribs, are hairy, oblong and narrowed at the base. The styles are about 2mm long and extend beyond the petals. So this plant looks something like Aniseroot (Osmorhiza longistylis), but it doesn't have an odor as Osmorhiza has. Also, the stipules aren't hairy, and the fruits seem too small. The plant also looks like Honewort (Cryptotaenia canadensis), but it has bracts beneath its umbels unlike the Honewort, its leaves seem too small. It does seem that the rays (the branches of the umbel) are of unequal length, as with the Honewort. It also resembles Scotch Lovage (Ligusticum scotchicum), but there is no sheath on the base of each leaf, and Scotch Lovage grows on sandy and rocky soil. So, I'm stumped, but maybe somebody out there knows the answer. Paul |
#2
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What's this plant (Apiaceae)?
On Jun 10, 12:47 am, pcgallagher wrote:
So this plant looks something like Aniseroot (Osmorhiza longistylis), but it doesn't have an odor as Osmorhiza has. Also, the stipules aren't hairy, and the fruits seem too small. It's Osmorhiza longistylis. Wikipedia's article on O. longistylis is apparently mistaken in stating that O. longistylis' leaves have an odor. The fruits are small in young plants,. More information is available at www.botanicus.org Lowry PP; Jones AG. 1984. Systematics of Osmorhiza. Annals of Missouri Botanical Garden 71(4): 1128-1171. Paul |
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