I have a strange plant...?

there is a wild plant that is growing through the cracked concrete,it looks much like cannabis but has a straight-up stalk,gets to a maximum height of 3 feet,and the leaflets are not in groups of five,the leafs are directly connected to the stalk,and the flowers are extremely small,whitish-yellowish color,and the leafs look like cannabis leaflets ...What is this plant?

I have a strange plant...?
A picture would help us be certain.
Reply:Cinquefoil - or potentilla (var) has leaves that look a bit like cannabis. Take a look here:

http://www.nearctica.com/flowers/rosa/po...

There are many different types of potentilla. My daughter once came to me and said she thought our neighbor was growing pot in her yard...nope, just a wildflower!!
Reply:Actually cannabis or hemp is a really common weed it grows wild in all kinds of places it usually has none of the properties of "pot" that make you high. So it can be wild cannabis.
Reply:Dizygotheca (dizzy-goth-ick-uh), commonly known as False Aralia, is a graceful plant for bright locations in the house. Its most popular variety, aralia elegantissima, is well named because when healthy and full, they are indeed elegant to display. Some may consider its serrated leaflets to resemble the marijuana plant!



False Aralias are not plants for novices or those who enjoy easy-care varieties, but shouldn’t present too much of a challenge for those who are willing to pay a bit of attention to the plant’s needs. It can be picky about temperature, humidity, and watering, is attractive to spider mites, and tends to drop leaves if anything goes wrong. Usually the leaves that drop are the older, bottom ones; occasional leaf drop is quite common on most houseplants. Still, if too many leaves fall, the plant can get rather lanky and bare, so you’ll want to make sure to catch and fix any problems as soon as they crop up.



Temperature: Average. Don’t keep False Aralias in a room that drops below 60 degrees F. If the temperature is too warm, the plant may wilt. Also, try to maintain a constant temperature around the plant and avoid drafts.



Light: False Aralias like bright indirect light. They’re not plants to keep right in the window, but a bright room is essential.



Water: As with most foliage plants, water moderately Spring through Autumn and sparingly in the winter. Let the soil dry out slightly between waterings, which means that if it’s dry on top and moist about an inch down from the surface, it’s time to add water. Never let the soil dry out completely. If it’s too dry, it will drop leaves. If it’s too wet, the plant will wilt, then drop leaves later.



Humidity: Provide a fairly humid environment by using pebble trays and misting frequently. This is especially important during the winter.



Re-potting: Every two years or so, if needed, re-pot into a slightly different container. Spring is the best time to do this.



Propagation: It’s not easy to propagate False Aralias. Most are grown in nurseries from seed. If you want to try, though, take stem cuttings in the Spring and use a rooting hormone.
Reply:without seeing a picture, I can't be sure. It sounds almost like elderberry. However, the fact that it is coming up through cement makes me think more of bamboo. If it is bamboo, you should be able to find other plants up to 50' away.
Reply:it is called a weed
Reply:Iagree with CS it sounds like a cinchfoil, they grow in the gravel along my driveway.
Reply:I doubt that it's a Cleome; their flowers are fairly colourful and pretty, and their leaves don't resemble cannabis.



It would be great if you posted up a photo: that would make identification easier. The plant which looks most like cannabis is Hemp Agrimony (Eupatorium cannabinum) which has leaves almost identical to cannabis, although it's not related to cannabis. however, its flowers are red/purple.



your plant might be a member of the Artemisia genus (the Wormwoods), which has finely divided/serrated leaves that look a bit cannabis-like, together with tiny yellow or white flowers.



Anyway, do a web search for Hemp Agrimony and Artemisia and see if your plant matches; try google images.
Reply:I Would Say It's A Cleome/Spider Flower

Cleome hasslerana



I belive this looks close to what you described.



not strange at all!



Does this look like this?



http://www.ces.ncsu.edu/depts/hort/consu...



the plant has many hybrids and cultivars.



Hope This Helps..