1. Family: Poaceae Barnhart
    1. Puccinellia Parl.

      1. This genus is accepted, and its native range is Subarctic & Subantarctic to Temp. & Subalpine.

    [GB]

    nonem

    Habit
    Annual (9), or perennial (103). Rhizomes absent (107), or short (1), or elongated (1). Stolons absent (108), or present (5). Culms erect (56/82), or geniculately ascending (52/82), or decumbent (10/82), or prostrate (6/82); slender (4/4); 2-29.7-110 cm long; rooting from lower nodes (1/1). Culm-internodes terete (2/2). Lateral branches lacking (2/4), or ample (2/4). Leaf-sheaths open for most of their length (66/66). Ligule an eciliate membrane. Leaf-blades filiform (9), or linear (100); stiff (7), or firm (101), or flaccid (1).
    Inflorescences
    Inflorescence a panicle, or composed of racemes (1); subtended by an unspecialized leaf-sheath (107), or an inflated leaf-sheath (3); exserted (96), or embraced at base by subtending leaf (14), or enclosed (1). Panicle open (80), or contracted (36), or spiciform (2). Primary panicle branches not whorled (105), or whorled at lower nodes (1), or whorled at most nodes (3). Racemes single (1/1); unilateral (1/1). Spikelets appressed (1/1); solitary. Fertile spikelets sessile (6), or pedicelled. Pedicels linear (9/13), or oblong (4/13); tip rectangular (1/2), or widened (1/2).
    Spikelets
    Spikelets comprising 2-5-12 fertile florets; with diminished florets at the apex. Spikelets linear (6), or lanceolate (9), or elliptic (6), or oblong (94), or ovate (1), or rhomboid (1), or cuneate (1); laterally compressed; 1.66-5.795-17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes brief up to lowest fertile floret (108), or elongated between glumes (1); glabrous (108), or sparsely hairy (1). Floret callus glabrous (28/41), or sparsely hairy (3/41), or pubescent (11/41), or pilose (1/41).
    Fertile
    Spikelets comprising 2-5-12 fertile florets; with diminished florets at the apex. Spikelets linear (6), or lanceolate (9), or elliptic (6), or oblong (94), or ovate (1), or rhomboid (1), or cuneate (1); laterally compressed; 1.66-5.795-17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes brief up to lowest fertile floret (108), or elongated between glumes (1); glabrous (108), or sparsely hairy (1). Floret callus glabrous (28/41), or sparsely hairy (3/41), or pubescent (11/41), or pilose (1/41).
    Glume
    Glumes persistent; shorter than spikelet, or reaching apex of florets (1). Lower glume linear (7), or lanceolate (29), or elliptic (16), or oblong (15), or ovate (54), or orbicular (1), or obovate (1); 0.33-0.664-1 length of upper glume; membranous (107), or chartaceous (1), or herbaceous (1); without keels (106), or 1-keeled (3); 0 -veined (1/107), or 1 -veined (104/107), or 2 -veined (7/107), or 3 -veined (9/107). Lower glume lateral veins absent (100), or obscure (6), or distinct (8), or prominent (1). Lower glume surface smooth (108), or scabrous (1); glabrous (107), or puberulous (2). Lower glume apex entire (103), or erose (10); emarginate (1/99), or truncate (1/99), or obtuse (56/99), or acute (49/99), or acuminate (1/99). Upper glume linear (2), or lanceolate (25), or elliptic (31), or oblong (14), or ovate (43), or orbicular (1), or obovate (2); 0.5-0.7679-2 length of adjacent fertile lemma; membranous (106/108), or chartaceous (1/108), or herbaceous (1/108); with undifferentiated margins (100), or hyaline margins (9); without keels (105/108), or 1-keeled (3/108); 1 -veined (5/106), or 2 -veined (3/106), or 3 -veined (103/106), or 4 -veined (2/106), or 5 -veined (3/106). Upper glume surface smooth (108), or asperulous (1), or scabrous (1); glabrous (107), or puberulous (2). Upper glume apex entire (102), or erose (11); emarginate (1/99), or truncate (1/99), or obtuse (62/99), or acute (39/99), or acuminate (2/99).
    Florets
    Fertile lemma lanceolate (7), or elliptic (19), or oblong (70), or ovate (26), or orbicular (1), or obovate (16); membranous (105), or chartaceous (3), or cartilaginous (1); of similar consistency above (13), or much thinner above (96); of similar consistency on margins (95), or much thinner on margins (14); without keel (103), or keeled (7); 3 -veined (2), or 5 -veined (107), or 6-7 -veined (1). Lemma midvein extending to apex (13/18), or falling short of apex (5/18); without distinctive roughness (108), or scabrous (1); eciliate (107), or ciliolate (1), or ciliate (1), or pubescent (1). Lemma lateral veins obscure (70/76), or distinct (4/76), or prominent (2/76); stopping well short of apex (100/100). Lemma surface smooth, or scaberulous (1); glabrous (59), or puberulous (16), or pubescent (33), or pilose (8), or hirsute (1); hairy on back (40/58), or on veins (18/58), or between veins (1/58). Lemma margins eciliate (95), or ciliolate (10), or ciliate (3), or pubescent (1). Lemma apex entire (84), or erose (26); emarginate (4/105), or truncate (15/105), or obtuse (67/105), or acute (28/105), or acuminate (6/105), or apiculate (1/105); muticous (104), or mucronate (8), or awned (1). Palea 0.75-0.9949-1.1 length of lemma; 2 -veined (106/106). Palea keels smooth (65), or scaberulous (11), or scabrous (37), or spinulose (1); eciliate (71), or ciliolate (24), or ciliate (16). Palea apex dentate (2/2); muticous (107), or with excurrent keel veins (3). Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Lodicules 2 (1/1). Anthers 3 (108/108). Ovary glabrous (84/84).
    Fruits
    Caryopsis with adherent pericarp (89/89); lanceolate (1/15), or ellipsoid (6/15), or ovoid (7/15), or obovoid (1/15). Embryo 0.2-0.235-0.33 length of caryopsis. Hilum punctiform (88/88).
    Distribution
    Europe (18), or Africa (5), or Temperate Asia (72), or Tropical Asia (9), or Australasia (12), or North America (23), or South America (10), or Antarctica (3).
    [GB]

    nonem

    Habit
    Annual. Culms decumbent (1/1), or prostrate (1/1); 4-28.5-60 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane. Leaf-blades firm (1), or flaccid (1).
    Inflorescences
    Inflorescence a panicle; exserted, or embraced at base by subtending leaf (1). Panicle open (1), or contracted (1). Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
    Spikelets
    Spikelets comprising 2 fertile florets (1), or 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3-5.5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent (1/1).
    Fertile
    Spikelets comprising 2 fertile florets (1), or 3-5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3-5.5-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent (1/1).
    Glume
    Glumes persistent; shorter than spikelet. Lower glume ovate; 0.6-0.68-0.8 length of upper glume; membranous; without keels; 1 -veined, or 2-3 -veined (1). Lower glume lateral veins absent (1), or distinct (1). Lower glume apex obtuse (1), or acute (1). Upper glume ovate; 0.66-0.7175-0.8 length of adjacent fertile lemma; membranous; without keels; 3 -veined, or 4-5 -veined (1). Upper glume apex obtuse (1), or acute (1).
    Florets
    Fertile lemma elliptic (1), or ovate (1); membranous; much thinner above; of similar consistency on margins (1), or much thinner on margins (1); without keel (1), or keeled (1); 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface glabrous (1), or puberulous (1). Lemma apex entire (1), or erose (1); obtuse (1), or acute (1); muticous, or mucronate (1). Palea 1 length of lemma; 2 -veined. Palea keels smooth (1), or scaberulous (1); eciliate (1), or ciliolate (1). Apical sterile florets resembling fertile though underdeveloped.
    Flowers
    Anthers 3. Ovary glabrous.
    Fruits
    Caryopsis with adherent pericarp; ellipsoid (1/1). Embryo 0.6 length of caryopsis. Hilum punctiform.
    Distribution
    Europe (1), or Temperate Asia, or Australasia (1), or North America (1).

    Images

    Distribution

    Native to:

    Afghanistan, Alaska, Alberta, Aleutian Is., Algeria, Altay, Amur, Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Austria, Baleares, Baltic States, Belarus, Belgium, Bolivia, British Columbia, Bulgaria, Buryatiya, California, Canary Is., Cape Provinces, Central European Rus, Chatham Is., Chile Central, Chile North, Chile South, China North-Central, China South-Central, China Southeast, Chita, Colorado, Connecticut, Corse, Cyprus, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Ecuador, Falkland Is., Finland, France, Free State, Føroyar, Germany, Great Britain, Greece, Greenland, Hungary, Iceland, Idaho, Inner Mongolia, Iran, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kansas, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Krym, Kuril Is., Labrador, Lebanon-Syria, Macquarie Is., Magadan, Maine, Manchuria, Manitoba, Masachusettes, Minnesota, Mongolia, Montana, Morocco, Namibia, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Hampshire, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ontario, Oregon, Pakistan, Palestine, Peru, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Sakhalin, Sardegna, Saskatchewan, Sicilia, South Australia, South Dakota, South European Russi, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Tasmania, Tibet, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Uruguay, Utah, Uzbekistan, Vermont, Victoria, Washington, West Himalaya, West Siberia, Western Australia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Yukon

    Introduced into:

    Delaware, Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Missouri, New Jersey, Ohio, Pennsylvania, Virginia, West Virginia

    Puccinellia Parl. appears in other Kew resources:

    First published in Fl. Ital. 1: 366 (1850)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0