New Invaders of the Northeast
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Oriental Bittersweet
Oriental Bittersweet Department of Environmental Protection Environmental and Geographic Information Center 79 Elm St., Hartford, CT 06106 (860) 424-3540 Invasive Plant Information Sheet Asiatic Bittersweet, Oriental Bittersweet Celastrus orbiculatus Staff Tree Family (Celastraceae) Ecological Impact: Asiatic bittersweet is a rapidly spreading deciduous vine that threatens all vegetation in open and forested areas. It overtops other species and forms dense stands that shade out native vegetation. Trees and shrubs can be strangled by twining stems that twist around and eventually constrict the flow of plant fluids. Trees can be girdled and weighed down by vines in the canopies, making them more susceptible to damage by wind, snow, and ice storms. There is evidence that Asiatic bittersweet can hybridize with American bittersweet (Celastrus scandens), which occurs in similar habitats. Hybridization will destroy the genetic integrity of the native species. Control Methods: The most effective control method for Asiatic Bittersweet is to prevent establishment by annually monitoring for and removing small plants. Eradication of established plants is difficult due to the persistent seed bank in the soil. Larger plants are best controlled by cutting combined with herbicide treatment. Mechanical Control: Light infestations of a few small plants can be controlled by mowing or cutting vines and hand pulling roots. Weekly mowing can eradicate plants, but less frequent mowing ( 2-3 times per year) will only stimulate root suckering. Cutting and uprooting plants is best done before fruiting. Vines with fruits should be bagged and disposed of in the trash to prevent seed dispersal. Heavy infestations can be controlled by cutting vines and immediately treating cut stems with herbicide. -
The Vascular Plants of Massachusetts
The Vascular Plants of Massachusetts: The Vascular Plants of Massachusetts: A County Checklist • First Revision Melissa Dow Cullina, Bryan Connolly, Bruce Sorrie and Paul Somers Somers Bruce Sorrie and Paul Connolly, Bryan Cullina, Melissa Dow Revision • First A County Checklist Plants of Massachusetts: Vascular The A County Checklist First Revision Melissa Dow Cullina, Bryan Connolly, Bruce Sorrie and Paul Somers Massachusetts Natural Heritage & Endangered Species Program Massachusetts Division of Fisheries and Wildlife Natural Heritage & Endangered Species Program The Natural Heritage & Endangered Species Program (NHESP), part of the Massachusetts Division of Fisheries and Wildlife, is one of the programs forming the Natural Heritage network. NHESP is responsible for the conservation and protection of hundreds of species that are not hunted, fished, trapped, or commercially harvested in the state. The Program's highest priority is protecting the 176 species of vertebrate and invertebrate animals and 259 species of native plants that are officially listed as Endangered, Threatened or of Special Concern in Massachusetts. Endangered species conservation in Massachusetts depends on you! A major source of funding for the protection of rare and endangered species comes from voluntary donations on state income tax forms. Contributions go to the Natural Heritage & Endangered Species Fund, which provides a portion of the operating budget for the Natural Heritage & Endangered Species Program. NHESP protects rare species through biological inventory, -
WRITTEN FINDINGS of the WASHINGTON STATE NOXIOUS WEED CONTROL BOARD 2018 Noxious Weed List Proposal
DRAFT: WRITTEN FINDINGS OF THE WASHINGTON STATE NOXIOUS WEED CONTROL BOARD 2018 Noxious Weed List Proposal Scientific Name: Tussilago farfara L. Synonyms: Cineraria farfara Bernh., Farfara radiata Gilib., Tussilago alpestris Hegetschw., Tussilago umbertina Borbás Common Name: European coltsfoot, coltsfoot, bullsfoot, coughwort, butterbur, horsehoof, foalswort, fieldhove, English tobacco, hallfoot Family: Asteraceae Legal Status: Proposed as a Class B noxious weed for 2018, to be designated for control throughout Washington, except for in Grant, Lincoln, Adams, Benton, and Franklin counties. Images: left, blooming flowerheads of Tussilago farfara, image by Caleb Slemmons, National Ecological Observatory Network, Bugwood.org; center, leaves of T. farfara growing with ferns, grasses and other groundcover species; right, mature seedheads of T. farfara before seeds have been dispersed, center and right images by Leslie J. Mehrhoff, University of Connecticut, Bugwood.org. Description and Variation: The common name of Tussilago farfara, coltsfoot, refers to the outline of the basal leaf being that of a colt’s footprint. Overall habit: Tussilago farfara is a rhizomatous perennial, growing up to 19.7 inches (50 cm tall), which can form extensive colonies. Plants first send up flowering stems in the spring, each with a single yellow flowerhead. Just before or after flowers have formed seeds, basal leaves on long petioles grow from the rhizomes, with somewhat roundish leaf blades that are more or less white-woolly on the undersides. Roots: Plants have long creeping, white scaly rhizomes (Griffiths 1994, Chen and Nordenstam 2011). Rhizomes are branching and have fibrous roots (Barkley 2006). They are also brittle and can break easily (Pfeiffer et al. -
Anchusa L. and Allied Genera (Boraginaceae) in Italy
Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology Official Journal of the Societa Botanica Italiana ISSN: 1126-3504 (Print) 1724-5575 (Online) Journal homepage: http://www.tandfonline.com/loi/tplb20 Anchusa L. and allied genera (Boraginaceae) in Italy F. SELVI & M. BIGAZZI To cite this article: F. SELVI & M. BIGAZZI (1998) Anchusa L. and allied genera (Boraginaceae) in Italy, Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology, 132:2, 113-142, DOI: 10.1080/11263504.1998.10654198 To link to this article: http://dx.doi.org/10.1080/11263504.1998.10654198 Published online: 18 Mar 2013. Submit your article to this journal Article views: 29 View related articles Citing articles: 20 View citing articles Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=tplb20 Download by: [Università di Pisa] Date: 05 November 2015, At: 02:31 PLANT BIOSYSTEMS, 132 (2) 113-142, 1998 Anchusa L. and allied genera (Boraginaceae) in Italy F. SEL VI and M. BIGAZZI received 18 May 1998; revised version accepted 30 July 1998 ABSTRACT - A revision of the Italian entities of Anchusa and of the rdated genera Anchusella, Lycopsis, Cynoglottis, Hormuzakia and Pentaglottis was carried out in view of the poor systematic knowledge of some entities of the national flora. The taxonomic treatment relies on a wide comparative basis, including macro- and micromorphological, karyological, chorological and ecological data. After a general description of some poorly known microCharacters of vegetative and reproductive structures, analytical keys, nomenclatural types, synonymies, descriptions, distribution maps and iconographies are provided for each entity. -
2014 Plant Species List
Acanthaceae Hygrophila Occasional lacustris Acanthaceae Justicia ovata Uncommon Acanthaceae Ruellia humilis Common Acanthaceae Ruellia nudiflora s.n. Uncommon Acanthaceae Ruellia Occasional pedunculata Aceraceae Acer rubrum Occasional Agavaceae Yucca louisianica Uncommon Aiozaceae Molluga Occasional verticillata Alismataceae Echinodorus Occasional cordifolius Alismataceae Sagittaria Rare papillosa Alismataceae Sagittaria 156 Uncommon platyphylla Alliaceae Allium Occasional canadense var. canadense Alliaceae Allium Occasional canadense var. mobilense Alliaceae Allium 96, Uncommon drummondii 124 (Keith 96, 124) Amaranthaceae Alternanthera Common philoxeroides Amaryllidaceae Hymenocallis Uncommon liriosome Anacardiaceae Rhus aromatica Uncommon Anacardiaceae Rhus copallinum Occasional Anacardiaceae Toxicodendron Frequent radicans Apiaceae Bifora americana Common Apiaceae Centella erecta Uncommon Apiaceae Chaerophyllum Uncommon tainturieri Apiaceae Cicuta Uncommon maculatum Apiaceae Cynosciadium Uncommon digitatum Apiaceae Eryngium Common yuccifolium Apiaceae Hydrocotyle Occasional verticillata Apiaceae Polytaenia Frequent texana Apiaceae Ptilimnium Common capillaceum Apiaceae Ptilimnium Common nuttallii Apiaceae Spermolepsis Common inermis Apiaceae Torilis arvensis Occasional Apocynaceae Apocynum Occasional cannibinum Apocynaceae Nerium oleander Rare Apocynaceae Trachelospermu Occasional m difforme Aquifoliaceae Ilex decidua Common Aquifoliaceae Ilex opaca Common Aquifoliaceae Ilex vomitoria Abundant Araceae Arisaema Rare dracontium Araceae -
Redmond Watershed Preserve King County, Washington
Vascular Plant List: Redmond Watershed Preserve King County, Washington Partial list covers plants found in the 800-acre watershed managed by the city of Redmond primarily as a nature preserve. Habitats include shady 90-year old forest, sunny disturbed utility corridors, ephemeral drainages, perennial streams, ponds and other wetlands. The preserve has 7 miles of trails (see external links below), most of which are multi-use and a couple of which are ADA accessible. List originally compiled by Fred Weinmann in February 2002. Ron Bockelman made additions in 2018. 128 species (83 native, 45 introduced) Directions: 21760 NE Novelty Hill Rd, Redmond, WA 98052 is the physical address. Drive 2.3 miles east on Novelty Hill Rd from its junction with Avondale Rd. Turn left at the entrance across from 218 Ave NE and continue to the parking lot, information kiosk, and restrooms. Ownership: City of Redmond Access: Open during daylight hours. No pets allowed. Permits: None External Links: https://www.wta.org/go-hiking/hikes/redmond-watershed-preserve https://www.alltrails.com/parks/us/washington/redmond-watershed-preserve Coordinates: 47.695943°, -122.051161° Elevation: 300 - 700 feet Key to symbols: * = Introduced species. ? = Uncertain identification. + = Species is represented by two or more subspecies or varieties in Washington; the species in this list has not been identified to subspecies or variety. ! = Species is not known to occur near this location based on specimen records in the PNW Herbaria database, and may be misidentified. # = Species name could not be resolved to an accepted name; the name may be misspelled. Numeric superscripts after a scientific name indicates the name was more broadly circumscribed in the past, and has since been split into two or more accepted taxa in Washington. -
Introduction to Common Native & Invasive Freshwater Plants in Alaska
Introduction to Common Native & Potential Invasive Freshwater Plants in Alaska Cover photographs by (top to bottom, left to right): Tara Chestnut/Hannah E. Anderson, Jamie Fenneman, Vanessa Morgan, Dana Visalli, Jamie Fenneman, Lynda K. Moore and Denny Lassuy. Introduction to Common Native & Potential Invasive Freshwater Plants in Alaska This document is based on An Aquatic Plant Identification Manual for Washington’s Freshwater Plants, which was modified with permission from the Washington State Department of Ecology, by the Center for Lakes and Reservoirs at Portland State University for Alaska Department of Fish and Game US Fish & Wildlife Service - Coastal Program US Fish & Wildlife Service - Aquatic Invasive Species Program December 2009 TABLE OF CONTENTS TABLE OF CONTENTS Acknowledgments ............................................................................ x Introduction Overview ............................................................................. xvi How to Use This Manual .................................................... xvi Categories of Special Interest Imperiled, Rare and Uncommon Aquatic Species ..................... xx Indigenous Peoples Use of Aquatic Plants .............................. xxi Invasive Aquatic Plants Impacts ................................................................................. xxi Vectors ................................................................................. xxii Prevention Tips .................................................... xxii Early Detection and Reporting -
Oriental Bittersweet Orientalcelastrus Bittersweet Orbiculatus Controlcontrol Guidelinesguidelines
Oriental bittersweet OrientalCelastrus bittersweet orbiculatus ControlControl GuidelinesGuidelines NH Department of Agriculture, Markets & Food, Division of Plant Industry, 29 Hazen Dr, Concord, NH 03301 (603) 271-3488 Common Name: Oriental Bittersweet Latin Name: Celastrus orbiculatus New Hampshire Invasive Species Status: Prohibited (Agr 3800) Native to: Japan, China, Korea Photos by: Douglas Cygan Description: Deciduous vine reaching heights of 40-60'. Bark: Tannish, furrowed. Leaves: Alternate, ovate, bluntly toothed, 3-4'' long by 2/3’s as wide, tapered at the base. Flowers: Small, greenish, blooming in spring. Fruit: Yellow dehiscent capsule surrounding an orange-red aril. Fruits occur in the axils of the stems whereas native bittersweet (Celastrus scandens) fruits at the ends. Zone: 4-8. Habitat: Disturbed edges, roadsides, fields, forests and along rivers and streams. Spread: Birds and humans. Comments: Very aggressive, climbs up and over trees and smothers them. Do not buy wreaths made of these vines. Controls: Difficult to manage. Cutting, pulling, or recommended herbicide use applied to foliage, bark, or cut-stump. General Considerations The introduction of Oriental bittersweet to non infested areas is generally associated with birds and small mammals feeding on the abundant fruits in the fall and excreting the seeds as they move from one area to another. Dispersal is also associated with human activities where earth moving activities occur or when the vines and fruits are collected in the fall for ornamental wreathes and decorations (which is prohibited) and then carelessly discarded. Seed viability and germination rate is relatively high at 90% in the spring of the subsequent growing season, but drops off significantly the following year. -
Size Variations of Flowering Characters in Arum Italicum (Araceae)
M. GIBERNAU,]. ALBRE, 2008 101 Size Variations of Flowering Characters in Arum italicum (Araceae) Marc Gibernau· and Jerome Albre Universite Paul Sabatier Laboratoire d'Evolution & Diversite Biologique (UMR 5174) Bat.4R3-B2 31062 Toulouse cedex 9 France *e-mail: [email protected] ABSTRACT INTRODUCTION In Arum, bigger individuals should An extreme form of flowering character proportionally invest more in the female variations according to the size is gender function (number or weight of female modification, which occurs in several flowers) than the male. The aim of this species of Arisaema (Clay, 1993). Individ paper is to quantify variations in repro ual plant gender changes from pure male, ductive characters (size of the spadix when small, to monoecious (A. dracon parts, number of inflorescences) in rela tium) or pure female (A. ringens) when tion to plant and inflorescence sizes. The large (Gusman & Gusman, 2003). This appendix represents 44% of the spadix gender change is reversible, damaged length. The female zone length represents female individuals will flower as male the 16.5% of the spadix length and is much following year (Lovett Doust & Cavers, longer than the male zone (6%). Moreover 1982). These changes are related to change these three spadix zones increase with in plant size and are explained by the plant vigour indicating an increasing size-advantage model. The size-advantage investment into reproduction and pollina model postulates a sex change when an tor attraction. It appears that the length of increase in body size is related to differen appendix increased proportionally more tial abilities to produce or sire offspring than the lengths of the fertile zones. -
Akebia Quinata
Akebia quinata Akebia quinata Chocolate vine, five- leaf Akebia Introduction Native to eastern Asia, the genus Akebia consists of five species, with four species and three subspecies reported in China[168]. Members of this genus are deciduous or semi-deciduous twining vines. The roots, vines, and fruits can be used for medicinal purposes. The sweet fruits can be used in wine-making[4]. Taxonomy: Akebia quinata leaves. (Photo by Shep Zedaker, Virginia Polytechnic Institute & State FAM ILY: Lardizabalaceae University.) Genus: Akebia Decne. clustered on the branchlets, and divided male and the rest are female. Appearing Species of Akebia in China into five, or sometimes three to four from June to August, oblong or elliptic purplish fruits split open when mature, revealing dark, brownish, flat seeds Scientific Name Scientific Name arranged irregularly in rows[4]. A. chingshuiensis T. Shimizu A. quinata (Houtt.) Decne A. longeracemosa Matsumura A. trifoliata (Thunb.) Koidz Habitat and Distribution A. quinata grows near forest margins Description or six to seven papery leaflets that are along streams, as scrub on mountain Akebia quinata is a deciduous woody obovate or obovately elliptic, 2-5 cm slopes at 300 - 1500 m elevation, in vine with slender, twisting, cylindrical long, 1.5-2.5 cm wide, with a round or most of the provinces through which [4] stems bearing small, round lenticels emarginate apex and a round or broadly the Yellow River flows . It has a native on the grayish brown surface. Bud cuneate base. Infrequently blooming, range in Anhui, Fujian, Henan, Hubei, scales are light reddish-brown with the inflorescence is an axillary raceme Hunan, Jiangsu, Jiangxi, Shandong, an imbricate arrangement. -
Appendix C. Plant Species Observed at the Yolo Grasslands Regional Park (2009-2010)
Appendix C. Plant Species Observed at the Yolo Grasslands Regional Park (2009-2010) Plant Species Observed at the Yolo Grassland Regional Park (2009-2010) Wetland Growth Indicator Scientific Name Common Name Habitat Occurrence Habit Status Family Achyrachaena mollis Blow wives AG, VP, VS AH FAC* Asteraceae Aegilops cylinricia* Jointed goatgrass AG AG NL Poaceae Aegilops triuncialis* Barbed goat grass AG AG NL Poaceae Aesculus californica California buckeye D T NL Hippocastanaceae Aira caryophyllea * [Aspris c.] Silver hairgrass AG AG NL Poaceae Alchemilla arvensis Lady's mantle AG AH NL Rosaceae Alopecurus saccatus Pacific foxtail VP, SW AG OBL Poaceae Amaranthus albus * Pigweed amaranth AG, D AH FACU Amaranthaceae Amsinckia menziesii var. intermedia [A. i.] Rancher's fire AG AH NL Boraginaceae Amsinckia menziesii var. menziesii Common fiddleneck AG AH NL Boraginaceae Amsinckia sp. Fiddleneck AG, D AH NL Boraginaceae Anagallis arvensis * Scarlet pimpernel SW, D, SS AH FAC Primulaceae Anthemis cotula * Mayweed AG AH FACU Asteraceae Anthoxanthum odoratum ssp. odoratum * Sweet vernal grass AG PG FACU Poaceae Aphanes occidentalis [Alchemilla occidentalis] Dew-cup AG, F AH NL Rosaceae Asclepias fascicularis Narrow-leaved milkweed AG PH FAC Ascepiadaceae Atriplex sp. Saltbush VP, SW AH ? Chenopodiaceae Avena barbata * Slender wild oat AG AG NL Poaceae Avena fatua * [A. f. var. glabrata, A. f. var. vilis] Wild oat AG AG NL Poaceae Brassica nigra * Black mustard AG, D AH NL Brassicaceae Brassica rapa field mustard AG, D AH NL Brassicaceae Briza minor * Little quakinggrass AG, SW, SS, VP AG FACW Poaceae Brodiaea californica California brodiaea AG PH NL Amaryllidaceae Brodiaea coronaria ssp. coronaria [B. -
Araliaceae – Ginseng Family
ARALIACEAE – GINSENG FAMILY Plant: some herbs (perennial), woody vines, shrubs and trees Stem: usually pithy Root: sometimes with rhizomes Leaves: simple or palmately compound but rarely 2’s or 3’s, often thickened and large, mostly alternate (rarely opposite or whorled); usually with stipules that forms a stem sheath; often with star-shaped hairs Flowers: mostly perfect or unisexual (monoecious or dioecious), regular (actinomorphic); flowers very small, mostly in umbels; sepals 5, often forming small teeth or none, mostly 5(-10) petals; mostly 5(-10) stamens; ovary inferior, 2-5 (10) fused carpels Fruit: berry or drupe, oily Other: mostly tropical and subtropical, a few oranamentals; similar to Apiaceae; Dicotyledons Group Genera: 70+ genera; locally Aralia (spikenard), Hedera (English Ivy), Oplopanax, Panax (ginseng) WARNING – family descriptions are only a layman’s guide and should not be used as definitive Araliaceae (Ginseng Family) – 5 (mostly) sepals and petals (often 5-lobed), often in umbels or compound umbels; leaves simple or more often compound; fruit a berry or drupe Examples of common genera Devil's Walkingstick [Hercules’ Club] Wild Sarsaparilla Aralia spinosa L. Aralia nudicaulis L. Devil's Club [Devil’s Walking Stick; Alaskan Ginseng] Oplopanax horridus (Sm.) Miq. English Ivy Hedera helix L. (Introduced) Dwarf Ginseng Panax trifolius L. ARALIACEAE – GINSENG FAMILY Wild Sarsaparilla; Aralia nudicaulis L. Devil's Walkingstick [Hercules’ Club]; Aralia spinosa L. English Ivy; Hedera helix L. (Introduced) Devil's Club [Devil’s