Rhynchospora Alba (L

Total Page:16

File Type:pdf, Size:1020Kb

Rhynchospora Alba (L Flora of New Jersey Project Ted Gordon May 2011 The Sedge Genus Rhynchospora of New Jersey Herbaria records indicate the presence of 21 species of Rhynchospora in New Jersey. Rhynchospora alba (Linnaeus) Vahl, White Beaksedge <*Rhynchospora luquillensis Britton Rhynchospora capillacea Torrey, Needle Beaksedge <*Rhynchospora capillacea Torrey var. leviseta E.J. Hill ex A. Gray <*Rhynchospora setacea (Muhlenberg) MacMillan 1892, not Vahl 1906 <*Rhynchospora smallii Britton Rhynchospora capitellata (Michaux) Vahl, Brownish Beaksedge <*Rhynchospora capitellata (Michaux) Vahl var. leptocarpa (Chapman ex Britton) S.F. Blake <*Rhynchospora capitellata (Michaux) Vahl var. minor (Britton) S.F. Blake <*Rhynchospora glomerata (Linnaeus) Vahl var. capitellata (Michaux) Kükenthal <*Rhynchospora glomerata (Linnaeus) Vahl var. minor Britton <*Rhynchospora leptocarpa (Chapman ex Britton) Small Rhynchospora cephalantha A. Gray var. cephalantha, Common Bunched Beaksedge Rhynchospora chalarocephala Fernald & Gale, Loose-head Beaksedge Rhynchospora filifolia A. Gray, Threadleaf Beaksedge <* Rhynchospora fuscoides C. B. Clarke Rhynchospora fusca (Linnaeus) W. T. Aiton, Brown Beaksedge <*Rhynchospora alba (Linnaeus) Vahl var. fusca (Linnaeus) Vahl Rhynchospora glomerata (Linnaeus) Vahl, Clustered Beaksedge <*Rhynchospora cymosa Muhlenberg ex Elliott <*Rhynchospora glomerata (Linnaeus) Vahl var. angusta Gale <*Rhynchospora glomerata (Linnaeus) Vahl var. paniculata (A. Gray) Chapman Rhynchospora gracilenta A. Gray, Slender Beaksedge <*Rhynchospora gracilenta A. Gray var. diversifolia Fernald <*Rhychospora trichophylla Fernald Rhynchospora grayi Kunth, Gray’s Beaksedge <*Rhynchospora distans Elliott 1916, not (Michaux) Vahl 1805 <*Rhynchospora elliotti A. Gray 1835, not A. Dietrich 1833 Rhynchospora inundata (Oakes) Fernald, Narrow-fruit Horned Beaksedge <*Rhynchospora macrostachya Torrey ex A. Gray var. inundata (Oakes) Fernald Rhynchospora knieskernii J. Carey, Knieskern's Beaksedge Rhynchospora macrostachya Torrey ex A. Gray var. macrostachya, Tall Horned Beaksedge Rhynchospora microcephala (Britton) Britton ex Small, Small-headed Beaksedge <*Rhynchospora cephalantha A. Gray var. microcephala (Britt.) Kükenthal Rhynchospora nitens (Vahl) A. Gray, Short-beak Beaksedge <*Psilocarya nitens (Vahl) Alph. Wood Rhynchospora oligantha A. Gray, Feather-bristle Beaksedge Rhynchospora pallida M.A. Curtis, Pale Beaksedge Rhynchospora rariflora (Michaux) Elliott, Few-flower Beaksedge <*Schoenus rariflorus Michaux Rhynchospora recognita (Gale) Kral, Cymose Beaksedge <*Rhynchospora globularis (Chapman) Small var. recognita Gale <*Rhynchospora oblitera Gale <*Dichromena cymosa (Elliott) J.F. Macbride Rhynchospora scirpoides (Torrey) A. Gray, Long-beak Beaksedge <*Psilocarya scirpoides Torrey Rhynchospora torreyana A. Gray, Torrey's Beaksedge <*Phaeocephalum torreyanum (A. Gray) House .
Recommended publications
  • "National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary."
    Intro 1996 National List of Vascular Plant Species That Occur in Wetlands The Fish and Wildlife Service has prepared a National List of Vascular Plant Species That Occur in Wetlands: 1996 National Summary (1996 National List). The 1996 National List is a draft revision of the National List of Plant Species That Occur in Wetlands: 1988 National Summary (Reed 1988) (1988 National List). The 1996 National List is provided to encourage additional public review and comments on the draft regional wetland indicator assignments. The 1996 National List reflects a significant amount of new information that has become available since 1988 on the wetland affinity of vascular plants. This new information has resulted from the extensive use of the 1988 National List in the field by individuals involved in wetland and other resource inventories, wetland identification and delineation, and wetland research. Interim Regional Interagency Review Panel (Regional Panel) changes in indicator status as well as additions and deletions to the 1988 National List were documented in Regional supplements. The National List was originally developed as an appendix to the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.1979) to aid in the consistent application of this classification system for wetlands in the field.. The 1996 National List also was developed to aid in determining the presence of hydrophytic vegetation in the Clean Water Act Section 404 wetland regulatory program and in the implementation of the swampbuster provisions of the Food Security Act. While not required by law or regulation, the Fish and Wildlife Service is making the 1996 National List available for review and comment.
    [Show full text]
  • Nitens (Cyperaceae) in Indiana
    2013 THE MICHIGAN BOTANIST 25 REDISCOVERY OF RHYNCHOSPORA (PSILOCARYA) NITENS (CYPERACEAE) IN INDIANA Roger L. Hedge Emily J. Stork Indiana Department of Natural Resources Indiana Department of Natural Resources Division of Nature Preserves Division of Nature Preserves 402 W. Washington Street, Rm W267 5690 Chase St. Indianapolis, IN 46204 Merrillville, IN 46410 [email protected] [email protected] ABSTRACT In 2012 the authors rediscovered Rhynchospora (Psilocarya) nitens in Porter County at its only known site of occurrence in Indiana, providing the first documentation of the species for the site and the state in over 50 years. Prior to the 2012 discovery, the species had been collected in the state only twice since 1899. An Atlantic and Gulf Coastal Plain disjunct, this sedge is represented by only two occurrences in the Great Lakes region: Allegan County, Michigan and Porter County, Indiana. INTRODUCTION Rhynchospora nitens (Vahl) A. Gray is an Atlantic and Gulf Coastal Plain sedge that ranges in the U.S. from Texas to Massachusetts and that has disjunct occurrences in Indiana and Michigan. Farther south it occurs in the West Indies and Central America (Kral 2002). In the Atlantic Coastal Plain states in the U.S. the species is listed as “vulnerable” to “critically imperiled” in 8 of the 14 states where it occurs, namely Texas, Georgia, North Carolina, Delaware, Maryland, New Jersey, New York, and Massachusetts, and as “possibly extirpated” in Vir - ginia (NatureServe 2014). It is listed as “apparently secure” in Louisiana and Mississippi (NatureServe 2014). Although NatureServe (2014) indicates that the species has not been ranked or is still under review in Alabama, Florida, South Carolina, and Michigan Rothrock (2009) states it is “deemed secure from extir - pation in Florida and Mississippi” and Reznicek (1999) notes that it is primarily a southern coastal plain plant that is very rare in the northern parts of its range.
    [Show full text]
  • Holocentric Karyotype Evolution in Rhynchospora Is Marked by Intense
    ORIGINAL RESEARCH published: 10 September 2020 doi: 10.3389/fpls.2020.536507 Holocentric Karyotype Evolution in Rhynchospora Is Marked by Intense Numerical, Structural, and Genome Size Changes Edited by: 1 2† 1† 1 Hanna Weiss-Schneeweiss, Paula Burchardt , Christopher E. Buddenhagen , Marcos L. Gaeta , Murilo D. Souza , 3 1 University of Vienna, Austria Andre´ Marques * and Andre´ L. L. Vanzela * Reviewed by: 1 Laborato´ rio de Citogene´ tica e Diversidade Vegetal, Departamento de Biologia Geral, CCB, Universidade Estadual de Ekaterina D. Badaeva, Londrina, Londrina, Brazil, 2 Forage Science, AgResearch Limited, Hamilton, New Zealand, 3 Department of Chromosome Russian Academy of Sciences, Russia Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany Eva Maria Temsch, University of Vienna, Austria Tae-Soo Jang, Cyperaceae is a family of Monocotyledons comprised of species with holocentric Chungnam National University, South Korea chromosomes that are associated with intense dysploidy and polyploidy events. Within *Correspondence: this family the genus Rhynchospora has recently become the focus of several studies that Andre´ L. L. Vanzela characterize the organization of the holocentric karyotype and genome structures. To [email protected] broaden our understanding of genome evolution in this genus, representatives of Andre´ Marques [email protected] Rhynchospora were studied to contrast chromosome features, C-CMA/DAPI band †ORCID: distribution and genome sizes. Here, we carried out a comparative analysis for 35 taxa Christopher E. Buddenhagen of Rhynchospora, and generated new genome size estimates for 20 taxa. The DNA 2C- orcid.org/0000-0002-3016-1054 Marcos L. Gaeta values varied up to 22-fold, from 2C = 0.51 pg to 11.32 pg, and chromosome numbers orcid.org/0000-0003-1260-9641 ranged from 2n = 4 to 61.
    [Show full text]
  • Cyperaceae of Puerto Rico. Arturo Gonzalez-Mas Louisiana State University and Agricultural & Mechanical College
    Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1964 Cyperaceae of Puerto Rico. Arturo Gonzalez-mas Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Gonzalez-mas, Arturo, "Cyperaceae of Puerto Rico." (1964). LSU Historical Dissertations and Theses. 912. https://digitalcommons.lsu.edu/gradschool_disstheses/912 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. This dissertation has been 64—8802 microfilmed exactly as received GONZALEZ—MAS, Arturo, 1923- CYPERACEAE OF PUERTO RICO. Louisiana State University, Ph.D., 1964 B o ta n y University Microfilms, Inc., Ann Arbor, Michigan CYPERACEAE OF PUERTO RICO A Dissertation I' Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Botany and Plant Pathology by Arturo Gonzalez-Mas B.S., University of Puerto Rico, 1945 M.S., North Carolina State College, 1952 January, 1964 PLEASE NOTE: Not original copy. Small and unreadable print on some maps. Filmed as received. UNIVERSITY MICROFILMS, INC. ACKNOWLEDGMENT The author wishes to express his sincere gratitude to Dr. Clair A. Brown for his interest, guidance, and encouragement during the course of this investigation and for his helpful criticism in the preparation of the manuscript and illustrations.
    [Show full text]
  • A List of Grasses and Grasslike Plants of the Oak Openings, Lucas County
    A LIST OF THE GRASSES AND GRASSLIKE PLANTS OF THE OAK OPENINGS, LUCAS COUNTY, OHIO1 NATHAN WILLIAM EASTERLY Department of Biology, Bowling Green State University, Bowling Green, Ohio 4-3403 ABSTRACT This report is the second of a series of articles to be prepared as a second "Flora of the Oak Openings." The study represents a comprehensive survey of members of the Cyperaceae, Gramineae, Juncaceae, Sparganiaceae, and Xyridaceae in the Oak Openings region. Of the 202 species listed in this study, 34 species reported by Moseley in 1928 were not found during the present investigation. Fifty-seven species found by the present investi- gator were not observed or reported by Moseley. Many of these species or varieties are rare and do not represent a stable part of the flora. Changes in species present or in fre- quency of occurrence of species collected by both Moseley and Easterly may be explained mainly by the alteration of habitats as the Oak Openings region becomes increasingly urbanized or suburbanized. Some species have increased in frequency on the floodplain of Swan Creek, in wet ditches and on the banks of the Norfolk and Western Railroad right-of-way, along newly constructed roadsides, or on dry sandy sites. INTRODUCTION The grass family ranks third among the large plant families of the world. The family ranks number one as far as total numbers of plants that cover fields, mead- ows, or roadsides are concerned. No other family is used as extensively to pro- vide food or shelter or to create a beautiful landscape. The sedge family does not fare as well in terms of commercial importance, but the sedges do make avail- able forage and food for wild fowl and they do contribute plant cover in wet areas where other plants would not be as well adapted.
    [Show full text]
  • Site Synopsis
    SITE SYNOPSIS SITE NAME: LOUGH FAD BOG NHA SITE CODE: 001159 Lough Fad Bog NHA is a relatively large and primarily upland blanket bog, situated approximately 7 km from Pettigo, north of the Donegal to Pettigo road. It lies at altitudes between 130 m and 280 m on acidic gneiss bedrock. The site is situated in the townlands of Meensheefin, Belalt North, Lough Fad and Lough Ultan. Plantation forestry largely surrounds the site on its western, eastern and northern sides, while to the south it is bounded by the road between Donegal and Pettigo. The site contains upland and lowland blanket bog developed as relatively shallow peat. The bog lies on a series of gently sloping plateaux, separated by rocky knolls and east-west trending ridges, situated on a catchment divide (watershed) between the Waterfoot and Ballintra Rivers. A number of lakes occur in the northern part of the site, including Lough Nageage, Lough Natragh, Lough Nacraghan, Lough Fad, Lough Atarriff and Lough Nabrackmore. The vegetation of the site is characterised by blanket bog species. The most dominant include Ling Heather (Calluna vulgaris), Purple Moor-grass (Molinia caerulea), Common Cottongrass (Eriophorum angustifolium), the locally occurring species Oblong-leaved Sundew (Drosera intermedia), Bog-myrtle (Myrica gale), Cross- leaved Heath (Erica tetralix), White Beak-sedge (Rhynchospora alba), Bog Asphodel (Narthecium ossifragum), Deergrass (Scirpus cespitosus), Carnation Sedge (Carex panicea) and lichens (Cladonia portentosa and C. uncialis). Bog moss lawns and hummocks are locally frequent, consisting of Sphagnum capillifolium, S. subnitens, S. imbricatum, S. auriculatum, S. papillosum and S. compactum. Large cushions of Racomitrium lanuginosum and Leucobryum glaucum also occur.
    [Show full text]
  • NJ Native Plants - USDA
    NJ Native Plants - USDA Scientific Name Common Name N/I Family Category National Wetland Indicator Status Thermopsis villosa Aaron's rod N Fabaceae Dicot Rubus depavitus Aberdeen dewberry N Rosaceae Dicot Artemisia absinthium absinthium I Asteraceae Dicot Aplectrum hyemale Adam and Eve N Orchidaceae Monocot FAC-, FACW Yucca filamentosa Adam's needle N Agavaceae Monocot Gentianella quinquefolia agueweed N Gentianaceae Dicot FAC, FACW- Rhamnus alnifolia alderleaf buckthorn N Rhamnaceae Dicot FACU, OBL Medicago sativa alfalfa I Fabaceae Dicot Ranunculus cymbalaria alkali buttercup N Ranunculaceae Dicot OBL Rubus allegheniensis Allegheny blackberry N Rosaceae Dicot UPL, FACW Hieracium paniculatum Allegheny hawkweed N Asteraceae Dicot Mimulus ringens Allegheny monkeyflower N Scrophulariaceae Dicot OBL Ranunculus allegheniensis Allegheny Mountain buttercup N Ranunculaceae Dicot FACU, FAC Prunus alleghaniensis Allegheny plum N Rosaceae Dicot UPL, NI Amelanchier laevis Allegheny serviceberry N Rosaceae Dicot Hylotelephium telephioides Allegheny stonecrop N Crassulaceae Dicot Adlumia fungosa allegheny vine N Fumariaceae Dicot Centaurea transalpina alpine knapweed N Asteraceae Dicot Potamogeton alpinus alpine pondweed N Potamogetonaceae Monocot OBL Viola labradorica alpine violet N Violaceae Dicot FAC Trifolium hybridum alsike clover I Fabaceae Dicot FACU-, FAC Cornus alternifolia alternateleaf dogwood N Cornaceae Dicot Strophostyles helvola amberique-bean N Fabaceae Dicot Puccinellia americana American alkaligrass N Poaceae Monocot Heuchera americana
    [Show full text]
  • Species from Central Florida, with Supplemental Notes and a Key to Rhynchospora Series Plumosae
    NUMBER3 BRIDGES AND ORZELL: NEW SPECIES OF RHYNCHOSPORA 19 RliYNCHOSPORA MEGAPLUMOSA ( CYPERACEAE), A NEW SPECIES FROM CENTRAL FLORIDA, WITH SUPPLEMENTAL NOTES AND A KEY TO RHYNCHOSPORA SERIES PLUMOSAE Edwin L. Bridges1 and Steve L. OrzelF 1Botanical and Ecological Consultant, 7752 Holly Tree Place, NW, Bremerton, Washington 98312 2Avon Park Air Force Range, 29 South Blvd. Avon Park Air Force Range, Florida 33825 Abstract: Rhynchospora megaplumosa is described as a new species of Rhynchospora, endemic to central Florida, in the section Rhynchospora series Plumosae. It is re­ stricted to sandy openings in scrubby flatwoods in two localized areas of central Florida, in Polk and Manatee counties, where it flowers profusely in areas following burning. Rhynchospora megaplumosa is most closely related to R. pineticola and R. plumosa, but is distinguished by several characters, most conspicuously by its longer (5-7 mm) perianth bristles and golden-brown, narrowly lanceolate, longer spikelets. A key is provided to distinguish it from other species in the series. The habitat and associated species of R. megaplumosa, are also discussed. Keywords: Rhynchospora, Cyperaceae, Florida, scrubby flatwoods. In October of 1990, we collected an un­ the original collection a large uniform pop­ usual species of Rhynchospora in Lake Ar­ ulation of this same entity was discovered. buckle State Forest (now known as Lake Detailed field notes were made on this pop­ Wales Ridge State Forest, Arbuckle Tract) ulation, and a search was made for other on the eastern edge of the Lake Wales Ridge species of Rhynchospora and for possible in­ in Polk County, Florida. This plant clearly termediate or intergrading specimens at the belonged to Rhynchospora series Plumosae site.
    [Show full text]
  • HITE BEAK-RUSH . Open Sphagnum Bogs. Infrequent. Bergen Swamp
    86 ROCHESTER ACADEMY OF SCIENCE 8. RHYNCHOSPORA Vahl Beak-rush a. Plant tufted; culms stout, 1-8 dm. high, leaves setaceous to linear, 0.5-2.5 mm. wide; inflorescence of turbinate fascicles, at first milky-white, whitish-brown when mature . .. .. .. .................................... 1. R. alba. a. Plant fo rming tussocks; culms capillary, 0.5-4.5 dm. high, leaves setaceous or nar­ rowly linear; inflorescence of small fascicles with 1-10 spikelets, brown. b. Bristles retrorsey barbed ... .... .. 2. R. capillacea. b. Bristles smooth, not barbed .......... 3. R. capillacea forma leviseta. 1. Rhynchospora alba (L) Vahl \"HITE BEAK-RUSH . R. a.lba. Vahl of Proc. Roch. Acad. Sci. 3: 117. 1896. Open sphagnum bogs. Infrequent. Bergen Swamp, Kennedy's bog at Mendon Ponds Park, IVlud Pond in Wayne Co ., and Junius Ponds in Seneca Co. are stations where this species occurs more or less abundantly. 2. Rhynchospora capillacea Torr. CAPILLARY BEAK-RUSH. Marly bogs. Infrequent. Open marl bog in Bergen Swamp, marl bog at Junius Ponds in Seneca Co., marl bog north of Quaker Pond in Mendon Ponds Park, Cedar Swamp in town of Henrietta and a marl bog on the Victor Road near Victor in Ontario Co. are stations where this species has been found in limited quantities, usually with Scleria verticillata. 3. Rhynchospora capillacea Torr. forma leviseta (E. J. Hill) Fern. Marly bogs. Rare. The open marl bog in Bergen Swamp is the only known station for this form in the area. 9. CLADIUM P. Br. Twig-rush 1. Cladium mariscoides (Muhl.) Torr. C. ma.yiscoides Torr. of Proc. Roch.
    [Show full text]
  • Estimates of Waste Rice, Natural Seeds, and Wetland Birds in Gulf Coast Prairie Ricelands
    Template B v3.0 (beta): Created by J. Nail 06/2015 Estimates of waste rice, natural seeds, and wetland birds in Gulf Coast Prairie ricelands during fall–winter By TITLE PAGE Joseph R. Marty A Dissertation Submitted to the Faculty of Mississippi State University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Forest Resources in the College of Forest Resources Mississippi State, Mississippi May 2017 Estimates of waste rice, natural seeds, and wetland birds in Gulf Coast Prairie ricelands during fall–winter By APPROVAL PAGE Joseph R. Marty Approved: ____________________________________ J. Brian Davis (Major Professor) ____________________________________ Richard M. Kaminski (Committee Member) ____________________________________ Michael G. Brasher (Committee Member) ____________________________________ Scott A. Rush (Committee Member) ____________________________________ Andrew J. Kouba (Department Head) ____________________________________ Kevin M. Hunt (Graduate Coordinator) ____________________________________ George M. Hopper Dean College of Forest Resources Name: Joseph R. Marty ABSTRACT Date of Degree: May 5, 2017 Institution: Mississippi State University Major Field: Forest Resources Major Professor: J. Brian Davis Title of Study: Estimates of waste rice, natural seeds, and wetland birds in Gulf Coast Prairie ricelands during fall–winter Pages in Study:202 Candidate for Degree of Doctor of Philosophy Hundreds of wetland bird species use ricelands annually in the Gulf Coast Prairie region of Louisiana and Texas. Much of the original ecosystem was transformed for rice and other crops, cattle ranching, flood control, and other human uses. Flooded production and idled ricelands provide critical foraging habitat for breeding, migrating, and wintering wetland birds. Ricelands in coastal Louisiana and Texas provide approximately 42% of the estimated habitat carrying capacity for wintering waterfowl in this region.
    [Show full text]
  • Red List of Vascular Plants of the Czech Republic: 3Rd Edition
    Preslia 84: 631–645, 2012 631 Red List of vascular plants of the Czech Republic: 3rd edition Červený seznam cévnatých rostlin České republiky: třetí vydání Dedicated to the centenary of the Czech Botanical Society (1912–2012) VítGrulich Department of Botany and Zoology, Masaryk University, Kotlářská 2, CZ-611 37 Brno, Czech Republic, e-mail: [email protected] Grulich V. (2012): Red List of vascular plants of the Czech Republic: 3rd edition. – Preslia 84: 631–645. The knowledge of the flora of the Czech Republic has substantially improved since the second ver- sion of the national Red List was published, mainly due to large-scale field recording during the last decade and the resulting large national databases. In this paper, an updated Red List is presented and compared with the previous editions of 1979 and 2000. The complete updated Red List consists of 1720 taxa (listed in Electronic Appendix 1), accounting for more then a half (59.2%) of the native flora of the Czech Republic. Of the Red-Listed taxa, 156 (9.1% of the total number on the list) are in the A categories, which include taxa that have vanished from the flora or are not known to occur at present, 471 (27.4%) are classified as critically threatened, 357 (20.8%) as threatened and 356 (20.7%) as endangered. From 1979 to 2000 to 2012, there has been an increase in the total number of taxa included in the Red List (from 1190 to 1627 to 1720) and in most categories, mainly for the following reasons: (i) The continuing human pressure on many natural and semi-natural habitats is reflected in the increased vulnerability or level of threat to many vascular plants; some vulnerable species therefore became endangered, those endangered critically threatened, while species until recently not classified may be included in the Red List as vulnerable or even endangered.
    [Show full text]
  • Rhynchospora Alba White Beaksedge
    Rhynchospora alba white beaksedge Family Cyperaceae Origin Native WIS Code OBL CoC 8 DESCRIPTION This dense clumping sedge has slender, erect, unbranched stems (10 to 80 cm tall). Leaves are as long or shorter than the flowering stem, and they are narrow, alternate, erect to bending, hairless and flat at the base to three- sided toward the tip. Sheaths are closed. © Rob Routledge FLOWERS AND FRUITS June through August. At the tip of the flowering stem, spikelets are in one to three tuft-like clusters (1 to 2.5 cm across) with one or two smaller clusters also on the upper stem. Clusters are stalked and have leaf-like bracts, as long or slightly longer that the cluster. Spikelets (3.5 to 5.5 mm long) are narrow, elliptic, with pointed tip and two or three flowers. Scales at the base of the flowers are lance- shaped, pointed, overlapping and white then turning brown with age. Fruits are seed containing achenes (1.5 to 2 mm long), with a flat oval body, widest in the middle, and narrow triangular base. Surrounding the achene are nine to 12 barbed bristles as long as or slightly longer than the achene. HABITAT Prefers acid soils in mountain bogs, fens, swamps, and beaver ponds. © Arthur Haines © Anna Sheppard Rhynchospora alba, flowers and bristles on achene SIMILAR SPECIES Eriophorum virginicum, tawny cottongrass, looks similar in flower, but has much longer leaf-like bracts, and very long thread-like bristles giving the flower heads a cotton-ball, fluffy appearance. See Eriophorum © Rob Routledge Mittelhauser Glen © virginicum page for more details.
    [Show full text]