NameThatPlant.net currently features 3812 plants and 23,740 images. Pl. Relatively few farmers today actively maintain crop biodiversity, but for most of the history of agriculture this was the norm. watsoniae (Polygonaceae) Author: Mueller, Natalie G. Source: Novon 2017 v.25 no.2 pp. An illustrated flora of the northern United States, Canada and the British Possessions. First published in Sp. Browse pictures and read growth / cultivation information about Erect Knotweed (Polygonum erectum) supplied by member gardeners in the PlantFiles database at Dave's Garden. Erect knotweed (Polygonum erectum L.) Erect knotweed was cultivated in ancient Iowa and may have been domesticated. It may be distinguished from common knotweed by its long leafless, rose-colored flower spikes and its shiny seed. erect knotweed. erectum (L.) Ledeb. Treatment on page 550. Join our friendly community that shares tips and ideas for gardens, along with seeds and plants. Terms of Trade Contact - eMail Other Seed Lists. The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. achoreum (Blake) A. Manual of vascular plants of northeastern United States and adjacent Canada. Polygonum plebeium R. Erect knotweed (Polygonum erectum) Little barley ( Hordeum pusillum ) By the Middle Woodland Period, or about 2,000 years ago, Indians from the Upper Midwest down to Tennessee were farmers who grew the starchy seed complex (chenopod, maygrass, little barley, and sometimes erect knotweed), pepo squash, bottle gourd, and the oily seeds of sumpweed and sunflower. Polygonum crassicaule Raf. Britton, N.L., and A. An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language (1910) (14782884275).jpg 1,468 … In their wild forms, the lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats. Polygonum erectum Roth Common names Erect knotweed in language. 1. Polygonum erectum, Erect Knotweed. Seeds are shorter than the perianth, dull yellow-green to yellow-brown, minutely bumpy on the surface, 3-sided, egg-shaped to nearly triangular, tapering to a blunt tip. 166-179 ISSN: 1055-3177 Subject: Polygonum, etc ; biological nomenclature; crops; dimorphism; domestication; pericarp; plant … It flowers and fruits throughout the summer and into the fall until a killing frost. Web. Provided by Kentucky Native Plant Society. Polygonum idaeum Hayek; Strand-Knöterich (Polygonum oxyspermum C.A.Mey. Harold R. Hinds† Information. 1.1) Seed production. on erect knotweed (Polygonum erectum L.), an annual seed crop that was cultivated by ancient farmers in Eastern North America (ENA) from c. 3000–600 BP. Vol. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA., 2005. Elsewhere, I have argued on the basis of population morphometrics that some assemblages of erect knotweed exhibit a unique domestication syndrome as a result of hundreds of generations of selection in agroecosystems (Mueller, 2017a, … Polygonum erectum : Source: Polygonaceae of North America Update, database (version 2011) Acquired: 2011 : Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010) Reference for: Polygonum erectum : Source: The PLANTS Database, database (version 4.0.4) Acquired: 1996 : Notes: 1968, as cited in Kartesz & Meacham Initial Editorial Comments: in no way mentioned in Munz (despite Kartesz & Meacham citation), Munz Southern California Flora, The Jepson Manual [Ed. (2015). Has 2 Synonyms. Unbeständiger Vogelknöterich (Polygonum aviculare ssp rurivagum (Boreau) Berher). Polygonum erectum L. ssp. Polygonum erectum Linnaeus [family POLYGONACEAE], Sp. Plants light green or yellowish, heterophyllous. Polygonum erectum L. - erect knotweed POER2. Common knotweed can be confused with spotted spurge in gardens … of 2898 seeds/plant … & Bunge ex Ledeb.) By c. 900 BP, culti-vation had produced a domesticated subspecies with greatly reduced germination heteromorphism. lxxv + 910 pp." in collaboration with D. D. Keck. : 363 (1753) Accepted by. 3 vols. An Extinct Domesticated Subspecies of Erect Knotweed in Eastern North America: Polygonum erectum subsp. IDENTIFYING POLYGONUM SEEDS Alexander C. Martin United States Fish and Wildlife Service, Patuxent Research Refuge, Laurel, Md. Br. Mihai Costea, François J. Tardif, Harold R. Hinds † Common names: Erect knotweed renouée dressée. Brown. For many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant has been documented. 1: 363. WeedyEndemic. Pl. Stems erect to ascending, sparingly branched in distal 1/2, not wiry, 15–75 cm. Polygonum erectum. 1753. Emmet J. Judziewicz . Polygonaceae Including plants for which we do not have seed sources (some unavailable plants do not produce viable seed … Polygonum aviculare, Common Knotgrass, Europe, annual, 5 to 50cm, flower VI to X, plant community: ruderal, medicinal & culinary herb, weight of 1 000 seeds = 1 The report of this species in CT by Magee and Ahles (1999) is based on a specimen of Polygonum buxiforme— Ahles 85330 ( MASS! Mentioned on page 549, 551. 1913. Silver-sheathed knotweed, Polygonum argyrocoleon, is similar to common knotweed, but has a more erect growth habit reaching 12 to 20 inches in height. Silver-sheathed knotweed is most common in southern California. Bailey, C. & al. On NameThatPlant.net, plants are shown in different seasons (not just in flower), and you can hear Latin names spoken, look up botanical terms, … Gilman, A.V. ). Polygonum erectum L. Family: Polygonaceae . New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614. tab separated .txt "printable" version of Polygonaceae, flower seed price-list. (2015). 1: 663. Notes: Leathery Knotweed is a common native with a weedy disposition, typically found in disturbed soils such as roadsides, pavement cracks, weedy shorelines and the margins of agricultural fields. Charles Scribner's Sons, New York. Bibliography. KB; Other Data. Symbol POER2 Common Name erect knotweed Botanical Family Polygonaceae Pl., 1: 363. Archaeobotanical analyses can reveal the processes that led to the evolution of crop biodiversity throughout the Holocene, an issue of critical importance in an era of climate change and agrobiodiversity loss. B & T World Seeds log in or create an account. Polygonum erectum : Source: Polygonaceae of North America Update, database (version 2011) Acquired: 2011 : Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010) Reference for: Polygonum erectum : Source: The PLANTS Database, database (version 4.0.4) Acquired: 1996 : Notes: Treatment appears in FNA Volume 5. VI - XI, Hackfruchtäcker, Getreidefelder Nea Potidea, Chalkidiki (18.08.2017) Sp. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant. Plants light green or yellowish, heterophyllous. 1 "Polygonum erectum Linnaeus in Flora of North America @ efloras.org" eFlora. Polygonum aviculare var. The genus Polygonum ranks high among plants important to wildlife. & Cronquist, Arthur J. 2 "Gleason, Henry A. Stems erect to ascending, sparingly branched in distal 1/2, not wiry, 15–75 cm. Accessed February 2018. This study uses morphometrics and digital image analysis to document domestication syndrome in an annual seed crop, Polygonum erectum L. (erect knotweed), which was cultivated by Native Americans for c. 2,500 years in eastern North America. 1753. The lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats in their wild forms. Treatment Author(s) Mihai Costea. François J. Tardif. Erect knotweed (Polygonum erectum L.), an annual seed crop, was cultivated in Eastern North America between c. 3000–600 BP. A synchronized flowering period late in the growing season results in simultaneous ripening of a quantity of small-sized starchy seeds during October. Media in category "Polygonum erectum" The following 10 files are in this category, out of 10 total. Polygonum erectum L. appears in other Kew resources: IPNI - The International Plant Names Index. & D. Löve • ME, VT. Fields, roadsides, waste areas, railroads, lawns. (Smartweed) (P. pensylvanicum, P. persicaria, P. erectum, P. coccineum and P. scabrum)**OUTLINE** 1) SEED. Polygonum spp. Aufrechter Knöterich (Polygonum erectum L.): Er kommt in Kanada und in den Vereinigten Staaten vor. Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudic seeds 3; more Subject » Search 6 Search Results ... Search Results. 1991. Polygonum hickmanii H.R.Hinds & Rand.Morgan: Sie kommt in Kalifornien vor. Seed production by P. persicaria ranged from 880 to 4010 seeds/plant, representing an av. Polygonum erectum L. POLYGONACEAE Initial Editorial Analysis 12 Aug 2005 Source of Report for California: Munz, P.A. The lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats in their wild forms. Linnaeus. , P.A Extinct Domesticated Subspecies of Erect knotweed in language erectum subsp 110: 1-614 States, Canada the. 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