Its seeds germinate in fall beginning as early as September. Seeds germinate from late summer through fall. Hairy bittercress (Cardamine hirsuta) (non-native) The auricles, or projections at the base of the leaf where it meets the stem, are the best way to distinguish narrow-leaf bittercress from other bittercress species. Multiple generations may be produced in a single year. This plant is growing in my back yard. Holland Community Garden, Holland, Michigan. more details ... Back. There are many varieties of wild mustard in Michigan. It is a common weed of gardens, greenhouses, paths, railways and waste ground. The projectiles were coming from the hairy bittercress — alternate name shotweed — (Cardamine hirsute), a broadly distributed annual weed in the … Flowers. Use our Weed ID to find your weed and the Preen product to control it. The plant is an annual weed, which is one of the earliest to sprout and form seeds. Hairy bittercress has been around ever since I began botanical field work around 1990. Hairy bittercress: A weed to watch out for - Hairy bittercress is an annual weed that can spread quickly. Common vetch is less winter-hardy than hairy vetch. Like many members of the mustard family, hairy bittercress sets seed prolifically. It has only 4 stamens, C. flexuosa has 6 stamens, and the fruits overtop the flowers. Frequently found in moist fields, yards, and roadsides, it is one of the earliest bloomers, blooming in January or February. Before the flowers emerge, however, you will see young hairy bittercress plants as small rosettes of oval leaves, growing very close to the ground. April 21, 2016 – Author: Diane Brown, Michigan State University Extension Hairy bittercress (Cardamine hirsuta) is an annual weed in the mustard family. Hairy bitttercress is one of the most troublesome weeds in nursery production. During April and May, populations of the winter annual weed hairy bittercress (Cardamine hirsuta) becomes increasingly visible. Find a dealer. April 21, 2016 – Author: Diane Brown, Michigan State University Extension Hairy bittercress (Cardamine hirsuta) is an annual weed in the mustard family. Reproduction. Hairy bittercress (Cardamine hirsuta) is a winter or summer annual weed (depending on location). Seeds: Natives: Violets (Viola spp. It has only 4 stamens, C. flexuosa has 6 stamens, and the fruits overtop the flowers. I have seen lots of hairy bittercress this year, too. Basal leaves are persistent through maturity. Rosette leaves hairy at end of summer. It often enters landscapes as a contaminant in container plants. Leaves: In basal rosette and alternate on stem, rosette leaves stalked, uppermost stem leaves stalkless, amplexicaul. Hairy Bittercress is a winter annual broadleaf weed that is also known by its scientific name, Cardamine hirsute. Hairy bittercress (Cardamine hirsuta) is one of many winter annual broadleaf weeds commonly found in turfgrass systems throughout Tennessee. Identify. Most people consider Hairy Bittercress to be a noxious weed. We have identified the benefits among a few common options—chickweed, bittercress, and henbit. March 16, 2007. Hairy bittercress is an annual weed that can spread quickly. Leaves at the base of the plant are larger than the leaves at the top of the plant. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. Where, when, and how to find it and how to prepare and eat it. 355 likes. Leaf margins are deeply lobed. Classification. Hairy bittercress is very similar to Cardamine flexuosa. Bittercress is an annual weed that spreads quickly courtesy of an amazing trait -- its seed pods explode with seeds when touched, sending seeds flying as far as 16 feet. Two to ten white flowers are found along the stem on stalks of unequal length. For more information, visit https://extension.msu.edu. Chemical Treatment in Lawns Hairy bittercress is a winter annual weed. Frequently found in moist fields, yards, and roadsides, it is one of the earliest … True to its name, stinging nettle imparts a painful sting through tiny hairs on the underside of its leaves and on its stems. A good example is healthy chickweed or hairy bittercress. Hairy bittercress is an annual weed that can spread quickly. The weed’s first 2 true leaves are kidney- to heart-shaped. It is a particular problem in container-raised plants from nurseries and garden centres. Betty Marose, University of Maryland Extension. Smaller, younger leaves are more heart-shaped. "Field experiments were conducted in GA on buckhorn plantain, while research in TN was conducted on purple deadnettle and hairy bittercress. In C. flexuosa the fruits do not overtop the younger flowers. *=Multiple images on detail page: ... Bittercress: Hairy Bittercress, Hoary Bittercress, Lamb's Cress, Spring Cress, Flickweed Cardamine hirsuta* It often makes its way into landscapes as a “gift with purchase.” Bittercress is a mustard, so its bitterness is more spicy-hot than bitter, though it’s not nearly as hot as some other members of the Brassicaceae family. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. In New York it is usually a winter annual, but can sometimes act as a summer annual or biennial. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. Keep a close watch on newly planted containers, especially those that are positioned near flower beds. [Marestail (Conyza sp. 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