Photos and Pictures. Date : 8/11/2013 ... More photos of this flower. Be the first to review “From the Field – Buddleia, PA Smartweed, Foxtail Grass” Cancel reply. stream Tree Identification Field Guide. Leaf nodes are covered in papery, fringed sheaths. Pennsylvania smartweed is an annual plant, one of the few exceptions to those listed here. This plant bears white to pinkish flowers from March to November. Pennsylvania Smartweed may be easily confused with: Lady's Thumb. Another common name for Pale Smartweed is Heart's Ease, and Polygonum lapathifolium is another scientific name for this species. In North America, Pink Knotweed is also known as Pennsylvania smartweed, a member of the Buckwheat family. Description: Some may also refer to this very common weed as “Smartweed.” The leaves are distinctly pigmented in the centers. The leaves are long and narrow, ending in a point. Pennsylvania Smartweed (Polygonum pensylvanicum) Pennsylvania Smartweed is also known as Pink Knotweed and Pinkweed. This dark green, triangle-shaped splotch was at one time thought to resemble a lady’s thumbprint; Leaves alternate, opposite, 2-6″ (5-15 cm) long and narrowly or broadly lanceolate, with a fringe of hairs along the cylindrical sheath located at each leaf base. ), and nimblewill (Muhlenbergia schreberi) may be confused with stiltgrass. The lance-shaped leaves reach up to about 2 cm (0.79 in) in length. A. Pennsylvania smartweed Persicaria pensylvanicum L.. Family: Polygonaceae (Smartweed family) Life cycle: Annual Native status: Native to North America Habitat: Crop fields, horticultural areas General description: Erect or ascending growth with stems reaching 3 ft in length.Stems are smooth, branched, often with reddish tint, and swollen nodes. Another difference is the size of the seeds: Pale Smartweed has seeds up to 2 mm. Lady's Thumb. From our photo gallery: Pennsylvania Smartweed (Polygonum pensylvanicum L.), from Kane Woods. across, while Pennsylvania Smartweed has seeds that are more than 2 mm. Habitat: Growing on the edge of a small woodland pond. The flowers of Pennsylvania smartweed … Pale smartweed. Various species in genus to include swamp smartweed, water smartweed, pink smartweed, water pepper, Pennsylvania smartweed, stout smartweed. This article will assist with identification and provides recommendations for control, including a management calendar and treatment and timing table. Description Smartweeds are perennial plants that forms dense colonies in shallow water or moist soils and can grow to 3 feet tall. Weeds commonly submitted to the Virginia Weed Identification Clinic appear in the list of weeds. Narrow the list by choosing characteristics that match your unknown plant or search for plants by name. Water-willow (Justicia americana) – Smartweed Riverbed Community System: Palustrine Subsystem: Herbaceous PA Ecological Group(s): River Floodplain Global Rank: G4G5 State Rank: S4 General Description This community is found throughout Pennsylvania along … The alternate leaves have sheaths extending around the stems. The blade may be marked with a dark blotch. Pennsylvania Smartweed. Family: Buckwheat or Smartweed Family (Polygonaceae) General Description: Closely resembling Lady's-thumb but more variable in height, occasionally exceeding 2m (6½ft) in swampy areas, usually only 45-90cm (11/2-3ft) in cultivated fields, or nearly prostrate in open areas. This plant is best characterized by its dense, spike-like, elongated cluster of small light pink grain-like flowers.These flowers are arranged along a thin, vibrant green, fibrously robust, sticky, hairy stem. in height. Dotted Smartweed Persicaria punctata Knotweed family (Polygonaceae) Description: This plant is an annual or short-lived perennial that is 1-2½' tall, branching occasionally and rather erect in habit. It grows 2 to 4(6) feet high. It is commonly found growing around ponds and streams. Description Reviews (0) Description. Description Very comprehensive but terse guide to the native uses of plants. Description Knotweed Family (Polygonaceae). Description Perrenial herbaceous plant 15.2-30.4cm (6-24in) tall with red stem. It grows at its best in dark, loamy, moist soils. Emerged no-till ... Below are brief descriptions of selected herbicides that can be applied post in ... lambsquaters, smartweed, and velvetleaf). The upright, ribbed stems are branching or unbranched. Flower Description: Elongate clusters, Regular blooms, 4 parts Location: Kane Woods. Pennsylvania smartweed is a variable annual herb reaching 10 cm (3.9 in) to 2 m (6.6 ft) tall. The round stems are hairless and somewhat broader where the ocreae occur. Persicaria capitata is a cousin to Japanese Knotweed. Not for the casual reader. Pennsylvania smartweed is a wildflower that can be found in a wide variety of moist, open areas ranging from fields, ditches, roadsides, swamps, prairies, fence rows, edges of marshes, lakes, and ponds and abandoned parking lots. Lady's thumb has a distinctive triangular dark spot on its leaf. Description of Values. Weed Science Group 105 Plant Science Building Lexington, KY 40546-0312 Common Name: Pennsylvania Smartweed. Swamp Smartweed. Smartweed has a pink calyx and glossy black nutlets. Pennsylvania smartweed is a variable annual herb reaching 10 cm (3.9 in) to 2 m (6.6 ft) tall. Description of Zone 3 Zone 3: (22 to 32 meters along the transect line, perpendicular to the shoreline from the low tide line… Polygonum pensylvanicum. The upright, ribbed stems are branching or unbranched. Family: Buckwheat or Smartweed Family (Polygonaceae) General Description: Native to North America and very similar to Pale smartweed in general shape and habit of growth. The brownish ochrea at … Date: 7/11/2009. Zone 3 Table of Contents Description of Zone 3 Zizania aquaticaPoaceae (Grass Family)(Wild Rice) Polygonum hydropiper (Marsh Pepper or Knotweed) Polygonaceae (Buckwheat Family) Polygonum pensylvanicum (Pennsylvania Smartweed) Polygonaceae (Buckwheat Family) 1. See the glossary for icon descriptions. Plant Type: This is a herbaceous plant, it is a annual which can reach 122cm in height (48inches). Description. B. Description. Eastern Canada, west to Ontario; throughout most of the eastern United States and the Great Plains, extending west to MT, UT, and CA, including AK (absent in PNW) (FNA 2005). All plants need nitrogen to grow. Pennsylvania smartweed is a native annual of moist disturbed sites. Also, Pennsylvania smartweed (Polygonum pensylvanicum), crabgrass (Digirtaria spp. Description. Value Class Food Cover; High: Average 25-50% of diet: Flower description the flower has a superior ovary, and lacks a hypanthium Flower orientation … Pennsylvania smartweed is an annual herb that has small, five-parted pink or rose colored flowers on a short spike. (P. Lesica's contribution adapted from Lesica 2012. Join us! However, it is included because it is so common along lakeshores and streambanks. Buddleia, PA Smartweed and Foxtail Paula Chamlee. A member of the Knotweed family, smartweed is a native, warm-season annual. Flower: One or two spike-like racemes at the top of the stem, each 2 to 4 inches long. Persicaria Mississippiensis / Polygonum Mississippiense / Polygonum Mexicanum / Polygonum Bicorne / Persicaria Pensylvanica It grows on wet mud, muck, silt or sand. Description. The blade may be marked with a dark blotch. It is known to be an excellent bee plant. Japanese knotweed (Polygonum cuspidatum), Black bindweed (Polygonum convolvulus), Prostrate knotweed (Polygonum aviculare) have all cause livestock deaths as a green forage, possibly unrelated to nitrate poisoning.. The flowering branches have stalked glands. A champion tree represents the laregest of each species of tree Notes: May have 4 to 6 rays. One particular variety (Polygonum amphibium var. Description of Pink Knotweed. It is also commonly named Pennsylvania smartweed, pinkweed or pink smartweed. Description. Virginia cutgrass has longer leaves and flat compressed seed heads. Tweet; Description: Dense, terminal, spike-like clusters of small white and pink flowers. Split page, species info on the left, room for notes on the right. across. emersum) is called pinkweed, water smartweed, heart’s ease, and tannin plant. General Description: Pennsylvania smartweed is prevalent wildflower approximating 30-120 cm. Pennsylvania Soybeans: Post Herbicide Options, Application Restrictions. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. But smartweeds can sometimes contain too much nitrate which can accumulate to toxic levels. The growth habit is erect with multiple branching. Japanese knotweed (Fallopia japonica) is an invasive perennial and noxious weed in PA. ]. Pennsylvania smartweed is a summer annual. The stem is jointed and a sheath extends up the stem from the joint enclosing the stem for a short distance. Family Polygonaceae Also Called Heart's Ease, Lady's Thumb. Flowers are pinkish-purple and arranged in elongated clusters. No Image. Risks. Leaves are lance-shaped. It is an ornamental belonging to the Polygonaceae family. Description. Flower Description: Elongate clusters, Regular blooms, 4 parts Location: Allegheny River Trail. Crabgrass and nimblewill have stalky stems and branching seed heads. The stems have a reddish color and swollen nodes. Product description Pennsylvania Smartweed is a 2’ to 5’ tall native annual featuring short spikes of densely spaced small pink flowers. The leaves are lanceolate with a red watermark. This plant is usually found in … The bases of the leaves form a distinctive cylindrical sheath where the stalk joins the stem. All photos of this species. The plants grows vertically and horizontally and grows anywhere from 1 to 5 feet. Detailed Information. Portion of stem with leafstalk and ocrea. DESCRIPTION: NAME: Pinkweed OTHER COMMON NAMES: Smartweed / Pennsylvania Smartweed / Pink Knotweed SCIENTIFIC NAME: Polygonum Pensylvanicum syn. In Montana, Pennsylvania Smartweed was collected once from a garden in Fallon County (Lesica 2012). Plant. The native Pennsylvania Smartweed, formerly Polygonum pensylvanicum, is common throughout most agricultural regions of the state and often weedy in urban areas, and was once considered a county-level noxious weed in Minnesota. 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