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unknown possible biennial weed
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Posted by
michiganpete 5 (
My Page) on
Fri, Jun 8, 12 at 20:36
Suspect this may be a biennial and this is it's non-blooming year, there is no sign yet of any flower stalks, most leaves are about 9 inches long, lanceolate with toothed edges, white veins, thought at first it might be species of burdock but doubt it.
here is a link to the photo:
http://westmichiganfloraandfauna.cadethelper.info/id-needed/unknownlea
f.JPG |
Follow-Up Postings:
RE: unknown possible biennial weed
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Error occurred: 403 - forbidden
Apache Server at: d1162639.mydomainwebhost.com |
RE: unknown possible biennial weed
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| The link worked for me, though I don't know what the plant is. |
RE: unknown possible biennial weed
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| Compare your plant to Arnoglossum atriplicifolia. |
Here is a link that might be useful: FKA Cacalia
RE: unknown possible biennial weed
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| I tried the link and others for that species and although the leaves are similar they look a little too wide, mine are all about 2-3 times longer than they are wide; also listed as a perennial blooming June-August so I would think some indication of a flower stalk should have appeared by now. Everything in that genus seem to have sim wide leaves like a maple leaf, mine would be more like a holly. |
RE: unknown possible biennial weed
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| Still no sign of any flower/seed stalk. I found several indications in other locations that this plant does indeed send up a very tall flower/seed stalk because there are last year's skeletal remains visible. Of the dead stalks still upright some are over 7 feet tall. |
RE: unknown possible biennial weed
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| Are the stalks square? Because that mass looks like my cup plant (silphium perfoliatum) before it really starts to grow - it's now six feet with not a flower stalk in sight. If your picture is recent, it may not be cup plant, but perhaps one of the other members of the silphium family of which there are many natives, and all BIG. Just a thought. |
RE: unknown possible biennial weed
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| lisanti07028, I think you nailed it, yes the stalks are square and searching for(silphium perfoliatum) more or less confirmed it; I also observed the characteristic of collecting water at the crotch, something I also noticed this spring/early summer with Teasel, (Dipsacus fullonum), which also is a little hard to ID if you've never taken notice of and try to ID it, at the early stages of it's growth. The USDA wants to call the cup plant endangered here in Michigan for some reason, but I seem to see it everywhere. |
RE: unknown possible biennial weed
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Make sure you get out to see it when it's in bloom - mine top out at about 8 or 9 feet. I'd love to see them in a meadow like in your picture.
The flowers don't seem to match the plant, being smallish sunflowery things, but I swear every seed sprouts, so I cut the flowers off after the bees are done with them. |
RE: unknown possible biennial weed
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lisanti07028 - I've been watching them since May 4 so I definitely don't want to miss it either.
From what I found on line they may not bloom for some time yet; most sites list a bloom time of July-August and it may very well be later than sooner because we are having quite a dry couple of weeks here in Michigan.
From what I see in the field and from what you are describing I may need a step ladder to photograph the flowers; hopefully if I am careful I may be able to bend down the stalk and get some closeups Once I get some nice flower pix I will finish a web page for this plant and post the link at the forum. |
RE: unknown possible biennial weed
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| Given the size of the clumps, and knowing how the ones I have behave, I would bet that some of the stalks are going to be leaning way down by the time they bloom, so you shouldn't have a problem getting a close-up. They are late-bloomers, but they bloom for a long, long time, which is always nice. |
RE: unknown possible biennial weed
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| The plants finally started blooming. They are much shorter than what they appear to have been last year; they are mostly 6 feet or less; this is undoubtedly due to the near drought conditions around here. Despite the drought the plants are blooming there heads off (I guess that can be literal and figurative). |
RE: unknown possible biennial weed
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| Thanks for posting the pictures! That is an impressive sight. Drought or not, those are a couple of weeks ahead of mine, which are just starting to send up the flower stalks. |
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