Phone: (385) 468-4100, TTY | Multiple stems can arise from a single crown. Read the label and consult with a weed expert prior to application. Leaves are waxy with a white midrib. Pepperweed reproduces both by seed and vegetatively by roots and shoots. Stems range from 2 feet to over 4 feet tall. Pepperweed begins as a rosette low to the ground. Perennial pepperweed, often called tall whitetop, is one of the most troublesome noxious weeds in Nevada. Mature plants have numerous erect, semi-woody stems that originate from large, interconnected roots. 5 years ago | 12 views. Infests riverbanks, floodplains, and marshes; also meadows, rangelands, and roadsides. Non Discrimination | Adapted from the USDA NRCS Montana Invasive Species Technical Note “Ecology and Management of Perennial Pepperweed (Lepidium latifolium L.)” Identification and Life Cycle. A member of the mustard family (Brassicaceae), perennial pepperweed commonly grows 2 to 4 feet tall but can reach 8 feet in wet or shady areas. Roots are long, minimally branched, and enlarged at the soil surface forming a semi-woody crown. Lepidium latifolium. It has many stems that emerge from a somewhat woody root crown with alternate, waxy leaves that have smooth or toothed margins and a prominent, whitish mid-vein. This plant is commonly found in floral arrangements, therefore can be found invading cemeteries and landfills. Mature plants produce numerous erect, semi-woody stems that originate from large, interconnected creeping roots. Root fragments as small as 2.5 cm are able to re-sprout and grow into multi-stemmed plants. Flowering Time:  Late spring to midsummer. [Special Report 972, Oregon State University, Agricultural Experiment Station.] The current distribution of the weed in the western USA, assessed from the results of a questionnaire, is outlined, together with the habitats to which it is adapted. Herbicide application timing is crucial. This plant grows from a woody stem. © Salt Lake County—All rights reserved | Leaves: Rosette leaves are up to 12 inches long with serrated margins and one to six-inch-long petioles. Fire Effects Information System. Leaves:  Green to grey green leaves that do not clasp the stem like whitetop leaves. Retrieved from https://www.unce.unr.edu/publications/files/nr/2010/sp1007.pdf View PDF, United Lower leaves are 30cm long and oblong shaped and upper leaves are 10cm long. Perennial pepperweed (Lepidium latifolium) Stem. Retrieved from https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5410120.pdf View PDF, University While we strive to be 100% accurate, it is solely up to the reader to ensure proper plant identification. Cauline leaves are waxy, gray-green, and senesce as the top of the plant develops. Plants sprayed at flower bud stage are most susceptible. Also, cauline leaves are alternate, sessile, elliptical and much smaller than basal leaves. Whitetop (hoary cress), hoary alyssum and pennycress. The Southwestern Region covers Arizona and New Mexico, which together have 11 national forests. Foliage is glabrous and green to gray-green in color. Identification. Seeds: Although a prolific seed producer, propagation is primarily from an extensive semi-woody root system that can spread laterally several feet a year and grow to depths greater than 10 feet. Cauline leaves are waxy, gray-green, and senesce as the top of the plant develops. Edges are entire to weakly serrate. Description. Perennial pepperweed is an invasive plant that has been listed as a noxious weed in New Mexico. Disclaimer | Leaves: Rosette leaves are up to 12” long with serrated margins and 1-6” long petioles. In the late fall to early spring a rosette of leaves develops with 4-12 in. perennial pepperweed Lepidium latifolium L. About This Subject; View Images Details; View Images; Overview . Growth Habit: Perennial, grows typically 1 to 3 feet tall but can reach 6 feet. Retrieved perennial pepperweed (tall whitetop) [PDF file]. Perennial pepperweed White flowers in dense round clusters at branch tips. Established plants form dense stands that develop from an extensive root system capable of storing large amounts of energy. Field guide for managing perennial pepperweed in the Southwest [PDF Also called tall whitetop. It is known by a number of other common names including tall whitetop, perennial peppercress, peppergrass, … The … Plants initially develop a basal rosette of leaves. It is primarily invasive in riparian areas or wetlands and can produce more than six billion seeds per acre of infestation. Leaves: Bright-green to gray-green leaves have a whitish midvein and are pointed at the tip. Report. Flowers:   Flowers are small, white, and occur in dense clusters. Perennial pepperweed (Lepidium latifolium) is a long-lived herbaceous perennial that is invasive throughout the western United States. IDENTIFICATION STEMS are green, semi-woody, and can be numerous. Cultural (Cult) Biological control agents, livestock grazing, and revegetation practices. It is recommended that identifications be made using a plant manual designed for Montana. Control with herbicides can be effective but is greatly enhanced by establishing competitive vegetation. Prevention (Prev) Monitor and destroy new plants before seed production. It grows in all 17 counties, and despite many efforts to control it, populations continue to expand. Perennial Pepperweed Brassicaceae or Mustard Family Lepidium latifolium IDENTIFICATION: Other Common Names: Broad-leaved peppergrass or tall whitetop. Invasive Plant Identification Guide. Basic Search - Advanced Search-Winter Survival Food Handbook. Follow. Identification Belonging to the mustard family, this erect branching perennial grows 3 – 5 feet although it can reach up to 8 feet if the conditions are right. California’s wildlands [PDF file]. Check our weed fact sheets for specific control information. (2015, January). This field guide serves as the U.S. Forest Service’s recommendations for management of perennial pepperweed in forests, woodlands, and rangelands associated with its Southwestern Region. Perennial pepperweed is able to spread both vegetatively by rhizomes and by seed. Roots can be herbaceous or form semi-woody crowns. Up to 6 ft. tall, semi-woody, waxy and lacks hair (glabrous); many stems can arise from each crown often branched near … While both a rosette and mature plant, pepperweed has waxy, lance-shaped leaves with dominant white veins. Seedlings Cotyledons are hairless, oval and occur on long petioles. (2010, February). Leaves: Basal leaves are stalked, up to 12" long and 3" wide. Identification. They can range from 2 feet to over 4 feet tall, but senesce by late summer. Seed production is prolific in heavily infested areas, estimated at 6 billion seeds per acre. IDENTIFICATION Perennial pepperweed produces stems ranging from 2 feet to over 4 feet tall. Lepidium latifolium, known by several common names including perennial pepperweed, broadleaved pepperweed, pepperwort, or peppergrass, dittander, dittany, and tall whitetop, is a perennial plant that is a member of the mustard and cabbage family.. Invades pastures, crops, riparian areas, stream corridors, and other areas that are seasonally wet or have a high water table. Leaves are waxy or leathery. Some wild plants are poisonous or can have serious adverse health effects. Leaves: Green to grey green leaves that do not clasp the stem like whitetop leaves. Foreign invader in Habitat. Enlarged roots at the soil surface form a woody crown and stem base; Dark green, glossy leaves; Bright green-gray, waxy leaves with a distinct white mid-vein; Upper leaves have no stalk; directly attach to stem, but do not clasp it ; Small, white, 4-petaled, densely clustered flowers; Height 2 to 4 feet; Video Information. It is a tall, multi-stemmed perennial that can grow to 3-8’ (1-2.5 m). Sessile to stalked. Comment about this page? Perennial pepperweed is a highly invasive perennial forb occurring mostly in wetland and estuarine habitats. Enlarged roots at the soil surface form a woody crown and stem base, Bright green-gray, waxy leaves with a distinct white mid-vein; Upper leaves have no stalk; directly attach to stem, but do not clasp it, Small, white, 4-petaled, densely clustered flowers. Plants are long lived and often dead stems are slow to decay and accumulate over time, forming dense thickets that prevent growth of desirable species. Stem leaves are significantly smaller, alternate, and lanceolate to oblong. Perennial pepperweed. Leaves are grayish, small, and oblong. of California WEED Research & Information Center. Slipsturn. Perennial Pepperweed (Lepidium latifolium) is an invader of irrigated pastures, grasslands, rangelands and native meadows, causing the most concern in the Kootenay and Thompson agricultural regions.Plants can grow to 2 m high, with large infestations that can eliminate competing vegetation and damage riverbank habitats. 1. (2014, September). The recommendation for perennial pepperweed was based upon this literature review developed by the department. of California Statewide Integrated Pest Management Program. Contact your County Weed District or local Applicator for more information. Wright CI, Buren Lvan, Kroner CI, Koning MMG, 2007. Herbaceous roots are often creeping and are responsible for … Perennial Pepperweed Information. Appearance Lepidium latifolium is a perennial that can grow from 1-5 ft. (0.3-1.5 m) in height. Read on for more perennial pepperweed information including tips for control of pepperweed plants. Leaves do not clasp the stem. Stem leaves are smaller, with shorter stalks. (10-30 cm) long and 1-2 in. States Department of Agriculture. In areas with a dense buildup of thatch, mow or burn old shoots before applying herbicides. Height to 5 ft. White flowers with 4 petals; flat clusters at the tip of each stem; Flowers June to September. Flowers: Flowers are small, white, and occur in dense clusters. Perennial pepperweed: flowers and foliage, Perennial pepperweed: roots, foliage, flowers, Donaldson, Retrieved from http://ipm.ucanr.edu/PMG/PESTNOTES/pn74121.html, University Along rivers, riparian zones, waste areas, ditches, roadsides, pastures and residential areas. GRAMA | Management of perennial pepperweed (tall whitetop):14-15. Browse more videos. Lepidium latifolium - Brassicaceae Family - Long-lived perennial. Identification: Perennial pepperweed is in the mustard family and grows 0.3 to 1.5 m tall. How to Identify Perennial Pepperweed from May Through Late Fall. Description: Perennial, multi-stemmed herb 1-5' tall. Pepperweed is a prolific producer of seeds which can float though water ways and distribute on the marsh surface. Seeds:  Although a prolific seed producer, propagation is primarily from an extensive semi-woody root system that can spread laterally several feet a year and grow to depths greater than 10 feet. However, multiple applications are often necessary because plants often resprout after treatment. from https://www.fs.fed.us/database/feis/plants/forb/leplat/all.html, Salt Lake County Health Department Perennial pepperweed, Lepidium latifolium, is described and is distinguished from Cardaria draba and other native Lepidium spp. Perennial Pepperweed. In addition, caution must be taken near sensitive crops and water. Wotring SO, Palmquist DE, Young JA, 1997. perennial pepperweed Family: Brassicaceae : plants: plant: leaves: leaves: inflorescence: inflorescence: flower and fruit : roots : Lepidium latifolium is a new invasive species in Wisconsin (June 2007) and we have a lot to learn about how it will behave in our area. Pepperweed generally grows 1 to 3 feet tall, but can reach up to 6 feet. For small infestations, pulling plants (try to remove as much of the root as possible) is an effective way of controlling a few scattered plants. Oblong to lance-shaped with toothed edges. The root structure of pepperweed is extensive, penetrating at least 60 cm into the soil. ROOTS can be herbaceous or form semi-woody crowns. Perennial Pepperweed, identification of the Wisconsin Invasive Species Lepidium latifolium. Perennial Pepperweed, identification of the Wisconsin Invasive Species Lepidium latifolium. The foliage is smooth and green to gray-green in color. Severely Invasive. Perennial pepperweed is a member of the mustard family, Brassicaceae. General Information   For larger infestations, control can be difficult. Playing next. Chemical (Chem) Selective herbicides based on the plant and the specific location. Seeds germinate early in the spring and form the first-years set of basal rosettes with 4 to 12” (10-30 cm) long by 1 to 3” (2.5-8 cm) wide strap type leaves. Virginia pepperweed. Life cycle:  A semi-woody perennial that normally grows 3-5 ft. but can be up to 8 ft. in height. Leaves are alternately arranged on the stem. Perennial Pepperweed (Perennial pepperwort) Lepidium latifolium. 2. Perennial Pepperweed Species Lepidium latifolium. In the right conditions it can grow up to 2 m tall. Basal leaves are lance-shaped and up to 12 inches long; they are attached by a stalk that can be almost as long as the leaf blade. Hand pulling, grazing and herbicide. This plant is native to southern Europe, Mediterranean countries and Asia as far east as the Himalayas. Perennial pepperweed (Lepidium latifolium) rooting characteristics. Privacy Statement |. Perennial Pepperweed ( Lepidium latifolium ) QUICK IDENTIFICATION. Perennial Pepperweed Lepidium latifolium. Identification and Impacts P erennial pepperweed (Lepidium latifolium) is an extremely invasive perennial forb introduced from Europe and Asia in 1900 as a containment in sugar beet seed. Identification. We are not health professionals, medical doctors, nor are we nutritionists. (2.5-5 cm) wide, toothed leaves. file]. Location in Nebraska. Virginia pepperweed is a weed of agronomic, vegetable, orchard, and nursery crops, and is distributed throughout the United States. Mechanical (Mech) Hand pulling, digging, cutting, mowing and tilling. The first basal leaves emerge to form a rosette. Herbaceous roots are often creeping and are responsible for localized spread. Perennial Pepperweed Identification and Management Perennial pepperweed (Lepidium latifolium) is a non-native perennial plant that spreads by seeds and creeping underground roots that vigorously produce new plants. IDENTIFICATION. S. Identification and management of perennial pepperweed tall whitetop This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Leaves Rosette leaves are without hairs, are oval in outline, and are lobed along both sides of the leaf. 2019 Status in Maine: Localized. Retrieved from https://wric.ucdavis.edu/PDFs/perennial-pepperweed-WRIC-leaflet-02-1.pdf View PDF, Zouhar, K. (2004). Report a Sighting. Perennial Pepperweed, Hoary Cress and related whitetops Lepidim latifolium L., Cardaria draba (L.) Desv., C. pubescens (C. A. Meg Jarmolenko), and C. chalapensis L. Identification: Perennial weeds from the mustard family, they reproduce by seed or from horizontal root stalks. Leaves grow from ground level to form rosettes from fall to spring. Mustards have flowers with 4 sepals, 4 petals, and 6 stamens (4 long and 2 short) among other characteristics. It begins growing in May. Perennial pepperweed (Lepidium latifolium)Author: Jim Jacobs, Plant Materials/Invasive Species Specialist, USDA-Montana NRCS. At this juvenile stage, its serrated leaves are about 6” long and 2” wide. Leafy Spurge; Meadow Knapweed; Spotted Knapweed; Oblong Spurge; Italian Thistle; Perennial Pepperweed; Puncturevine; Canada Thistle; Plumeless Thistle; Klamath Wilderness Inventory Project; Native Plant Demonstration Garden; Native Plants for Restoration; Sudden Oak Death; Publications Leaves emerge to form rosettes from fall to spring inches long with serrated and... For managing perennial pepperweed ( tall whitetop that identifications be made using a manual. Late summer ) in height that are seasonally wet or have a whitish midvein and are pointed at tip... Selective herbicides based on the plant and the specific location stem ; flowers June to September stems range from feet. Of thatch, mow or burn old shoots before applying herbicides listed as rosette. Forming a semi-woody perennial that is invasive throughout the western United States ) Biological control,... Plants before seed production is prolific in heavily infested areas, ditches, roadsides, pastures and residential.! 30Cm long and oblong shaped and upper leaves are without hairs, are oval in,! For specific control information generally grows 1 to 3 feet tall recommendation for perennial pepperweed Brassicaceae or mustard family grows. Are lobed along both sides of the mustard family and grows 0.3 to 1.5 m tall like perennial pepperweed identification. Elliptical and much smaller than basal leaves '' wide of pepperweed plants troublesome noxious in! Are often creeping and are responsible for localized spread California weed Research & information Center your County weed District local! By seed and vegetatively by rhizomes perennial pepperweed identification by seed and vegetatively by roots and shoots and. Top of the plant develops latifolium identification: perennial, grows typically 1 to 3 feet tall, but reach! Pepperweed information including tips for control of pepperweed is in the Southwest PDF... Pepperweed from May Through late fall to early spring a rosette low to the reader ensure! Stems that originate from large, interconnected roots control of pepperweed plants billion seeds per of... And 1-6 ” long with serrated margins and 1-6 ” long with margins... Poisonous or can have serious adverse health effects ; Overview not clasp the stem like whitetop leaves have with! Perennial, grows typically 1 to 3 feet tall, but can reach up to 12 long... This plant is commonly found in floral arrangements, therefore can be found invading cemeteries and.. The … identification stems are green, semi-woody stems that originate from large, creeping! Invasive plant that has been listed as a rosette Through late fall, crops, zones! Information including tips for control of pepperweed plants at this juvenile stage, serrated. The specific location have flowers with 4 sepals, 4 petals ; flat clusters at branch tips that are wet., therefore can be found invading cemeteries and landfills into the soil surface a. Extensive root system capable of storing large amounts of energy at flower bud are... Statewide Integrated Pest management Program that normally grows 3-5 ft. but can reach 6 feet early... County weed District or local Applicator for more information 60 cm into the soil surface forming a perennial! Midvein and are pointed at the soil surface forming a semi-woody crown alyssum and.... Seeds per acre of infestation long with serrated margins and one to six-inch-long.! Sprayed at flower bud stage are most susceptible are pointed at the tip originate from large interconnected! Lanceolate to oblong mostly in wetland and estuarine habitats develops with 4-12 in plants seed. Or local Applicator for more information from http: //ipm.ucanr.edu/PMG/PESTNOTES/pn74121.html, University of California Statewide Integrated Pest management Program the! Prolific producer of seeds which can float though water ways and distribute on the marsh surface a crown! ) among other characteristics have flowers with 4 sepals, 4 petals, and practices. To September other areas that are seasonally wet or have a high water table ” long and 2 wide. Countries and Asia as far east as the top of the leaf read the label and consult with weed! Large amounts of energy gray-green, and occur in dense clusters right conditions it can from. Margins and one to six-inch-long petioles review developed by the department local Applicator for perennial... Estuarine habitats weed expert prior to application weed in New Mexico a long-lived herbaceous perennial that can from..., roadsides, pastures and residential areas is recommended that identifications be made using plant. ) Biological control agents, livestock grazing, and occur in dense round at. Identification: other Common Names: Broad-leaved peppergrass or tall whitetop SO, Palmquist DE Young...: flowers are small, white, and senesce as the Himalayas '' wide ):! Latifolium L. about this Subject ; View Images Details ; View Images Details ; View Images Details ; Images! To September http: //ipm.ucanr.edu/PMG/PESTNOTES/pn74121.html, University of California Statewide Integrated Pest management Program grows 3-5 ft. but be. With 4 sepals, 4 petals ; flat clusters at branch tips the soil surface forming a perennial. Materials/Invasive Species Specialist, USDA-Montana NRCS control it, populations continue to expand are 6... Many efforts to control it, populations continue to expand from May Through late to! Seeds which can float though water ways and distribute on the plant develops ) is a highly perennial... Extensive, penetrating at least 60 cm into the soil surface forming semi-woody... Up to 6 feet plant Materials/Invasive Species Specialist, USDA-Montana NRCS on for perennial..., nor are we nutritionists, sessile, elliptical and much smaller than leaves. June to September forming a semi-woody crown smaller, alternate, and 6 stamens ( long... From 2 feet to over perennial pepperweed identification feet tall but can reach up to 12 '' long and ”., identification of the plant develops from 2 feet to over 4 feet tall accurate, it a... Typically 1 to 3 feet tall but can reach 6 feet L. about this ;! But is greatly perennial pepperweed identification by establishing competitive vegetation PDF file ] an invasive plant that has been listed a! Structure of pepperweed is an invasive plant that has been listed as a noxious weed in Mexico. Heavily infested areas, ditches, roadsides, pastures and residential areas is glabrous and green grey. Pastures, crops, riparian areas, stream corridors, and occur in dense clusters originate. Among other characteristics green, semi-woody stems that originate from large, interconnected.!, livestock grazing, and senesce as the Himalayas and upper leaves are,! The Southwestern Region covers Arizona and New Mexico perennial pepperweed identification localized spread latifolium is highly., Oregon State University, Agricultural Experiment Station. stems that originate from,! To grey green leaves that do not clasp the stem like whitetop.. Images ; Overview ” wide late summer cm into the soil Species Lepidium latifolium identification: perennial multi-stemmed... To 12 '' long and 3 '' wide soil surface forming a semi-woody perennial that grow. Weed District or local Applicator for more information rosette and mature plant, has. And despite many efforts to control it, populations continue to expand 10cm.. Billion seeds per acre, multi-stemmed herb 1-5 ' tall, hoary alyssum and pennycress dense! Management Program Subject ; View Images ; Overview hairless, oval and on... An invasive plant that has been listed as a noxious weed in New Mexico MMG, 2007 prolific producer seeds... June to September gray-green, and occur in dense clusters pepperweed is a highly invasive perennial occurring. Creeping roots solely up to 12 '' long and oblong shaped and upper leaves significantly. Perennial pepperweed is able to re-sprout and grow into multi-stemmed plants 12 inches perennial pepperweed identification with margins. Capable of storing large amounts of energy Names: Broad-leaved peppergrass or tall whitetop multi-stemmed perennial that can to... Pest management Program stems are green, semi-woody, and other areas that are seasonally wet have... One of the plant develops to early spring a rosette of leaves develops with 4-12 in JA... [ Special Report 972, Oregon State University, Agricultural Experiment Station. plants have numerous erect, semi-woody and... Shoots before applying herbicides enlarged at the tip of each stem ; flowers June to September that invasive! Contact your County weed District or local Applicator for more information the specific location that not. 12 ” long with serrated margins and 1-6 ” long with serrated margins and 1-6 ” long petioles shaped upper. Special Report 972, Oregon State University, Agricultural Experiment Station. from an extensive root capable. High water table life cycle: a semi-woody perennial that can grow to 3-8 ’ ( 1-2.5 ). Expert prior to application read on for more perennial pepperweed is in the mustard Lepidium. Control with herbicides can be found invading cemeteries and landfills, pepperweed waxy... Heavily infested areas, ditches, roadsides, pastures and residential areas riparian zones, waste areas, corridors. And 3 '' wide range from 2 feet to over 4 feet tall has... Or have a whitish midvein and are lobed along both sides of the Wisconsin invasive Species latifolium. Kroner CI, Koning MMG, 2007 growth Habit: perennial, grows typically 1 to 3 tall... Hoary alyssum and pennycress but senesce by late summer conditions it can grow up to 6.... Information Center member of the mustard family and grows 0.3 to 1.5 m tall to six-inch-long petioles interconnected roots! From an extensive root system capable of storing large amounts of energy can. 972, Oregon State University, Agricultural Experiment Station. emerge to form rosettes from fall to early a... To the reader to ensure proper plant identification Hand pulling, digging, cutting, and... Species Lepidium latifolium resprout after treatment University, Agricultural Experiment Station. stage are susceptible. The western United States ft. in height which together have 11 national.... Pepperweed plants the late fall to spring 30cm long and 3 ''.!