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aurantiaca Agoseris aurantiaca var. purpurea Agoseris glauca var. dasycephala Agoseris glauca var. glauca Agrostemma githago var. githago A cont. Allenrolfea

Agoseris aurantiaca var. purpurea Agoseris glauca Agoseris glauca var. dasycephala Agoseris glauca var. glauca Agoseris grandiflora Agoseris grandiflora

Festuca edlundiae, Festuca filiformis, Festuca frederikseniae, Festuca glauca, Festuca groenlandica, Festuca heterophylla, Festuca hyperborea, Festuca

desvauxii Erioneuron avenaceum Erioneuron nealleyi Erioneuron pilosum Eustachys glauca Eustachys petraea F Fingerhuthia africana H Hilaria jamesii Hilaria mutica

Chenopodium sect. Blitum, Chenopodium sect. Degenia, Chenopodium sect. Glauca, Chenopodium sect. Pseudoblitum (Linnaeus) Hiitonen Suom. Kasvio, 307. 1933

genusAgoseris Show Lower Taxa Agoseris apargioides, Agoseris aurantiaca, Agoseris glauca, Agoseris grandiflora, Agoseris heterophylla, Agoseris hirsuta, Agoseris

Rosa californica, Rosa carolina, Rosa cinnamomea, Rosa foliolosa, Rosa glauca, Rosa gymnocarpa, Rosa nitida, Rosa nutkana, Rosa palustris, Rosa pinetorum

Show Lower Taxa Picea abies, Picea breweriana, Picea engelmannii, Picea glauca, Picea mariana, Picea pungens, Picea rubens, Picea sitchensis A. Dietrich

Fritillaria eastwoodiae, Fritillaria falcata, Fritillaria gentneri, Fritillaria glauca, Fritillaria liliacea, Fritillaria micrantha, Fritillaria ojaiensis, Fritillaria

Yucca elata, Yucca faxoniana, Yucca filamentosa, Yucca flaccida, Yucca glauca, Yucca gloriosa, Yucca harrimaniae, Yucca intermedia, Yucca madrensis, Yucca

biltmoreana, Smilax bona-nox, Smilax californica, Smilax ecirrata, Smilax glauca, Smilax havanensis, Smilax herbacea, Smilax hugeri, Smilax illinoensis,

Arctostaphylos gabilanensis, Arctostaphylos glandulosa, Arctostaphylos glauca, Arctostaphylos glutinosa, Arctostaphylos hispidula, Arctostaphylos hookeri

sectionPoa sect. Stenopoa speciesPoa glauca Show Lower Taxa Poa glauca subsp. glauca, Poa glauca subsp. rupicola, Poa glauca var. pekulnejensis Vahl Robert J

Lower Taxa Casuarina cunninghamiana, Casuarina equisetifolia, Casuarina glauca Linnaeus Amoen. Acad. 4: 143. 1759. Karen L. Wilson Common names: She-oak

Vernonia fasciculata, Vernonia flaccidifolia, Vernonia gigantea, Vernonia glauca, Vernonia larseniae, Vernonia lettermannii, Vernonia lindheimeri, Vernonia

fragilis, Muhlenbergia frondosa, Muhlenbergia glabrifloris, Muhlenbergia glauca, Muhlenbergia glomerata, Muhlenbergia jonesii, Muhlenbergia lindheimeri

speciesSalix glauca Show Lower Taxa Salix glauca var. acutifolia, Salix glauca var. cordifolia, Salix glauca var. stipulata, Salix glauca var. villosa

Cichorieae genusAgoseris speciesAgoseris glauca Show Lower Taxa Agoseris glauca var. dasycephala, Agoseris glauca var. glauca (Pursh) Rafinesque Herb. Raf., 39

Parnassia caroliniana, Parnassia cirrata, Parnassia fimbriata, Parnassia glauca, Parnassia grandifolia, Parnassia kotzebuei, Parnassia palustris, Parnassia

LAYOUT:treatment:TUOYAL familyCasuarinaceae genusCasuarina speciesCasuarina glauca Sieber ex Sprengel Syst. Veg. 3: 803. 1826. Karen L. Wilson Common names:

tribeAsteraceae tribe Astereae genusHerrickia Show Lower Taxa Herrickia glauca, Herrickia horrida, Herrickia kingii, Herrickia wasatchensis Wooton & Standley

Chamaetia sectionSalix sect. Glaucae Show Lower Taxa Salix brachycarpa, Salix glauca, Salix niphoclada (Fries) Andersson in A. P. de Candolle and A. L. P. P

genusChenopodium subgenusChenopodium subg. Blitum sectionChenopodium sect. Glauca Show Lower Taxa Chenopodium glaucum Ignatov in S. S. Kharkevich, Pl. Vasc

LAYOUT:treatment:TUOYAL familyCannaceae genusCanna Show Lower Taxa Canna flaccida, Canna glauca, Canna indica Linnaeus Sp. Pl. 1: 1. 1753; Gen. Pl. ed. 5; 1, 1754. W. John

genusChenopodium subgenusChenopodium subg. Blitum sectionChenopodium sect. Glauca speciesChenopodium glaucum Show Lower Taxa Chenopodium glaucum var. glaucum

Eustachys caribaea, Eustachys distichophylla, Eustachys floridana, Eustachys glauca, Eustachys neglecta, Eustachys petraea, Eustachys retusa Desv. Cynthia Aulbach

Pinaceae Pinaceae Pinaceae Larix occidentalis Pseudotsuga menziesii var. glauca Larix laricina Tsuga canadensis John Myers John Myers John Myers John Myers

subsp. andersonii, Crepis runcinata subsp. barberi, Crepis runcinata subsp. glauca, Crepis runcinata subsp. hallii, Crepis runcinata subsp. hispidulosa, Crepis

familyPlantaginaceae genusLagotis speciesLagotis glauca Show Lower Taxa Lagotis glauca subsp. glauca, Lagotis glauca subsp. lanceolata Gaertner Novi Comment. Acad

tribeAsteraceae tribe Cichorieae genusAgoseris speciesAgoseris glauca varietyAgoseris glauca var. glauca Gary I. Baird IllustratedEndemic Synonyms: Agoseris lacera Greene

Claytonia parviflora var. glauca Nuttall ex Torrey & A. Gray Fl. N. Amer. 1: 200. 1838 Synonyms: Montia perfoliata subsp. glauca (Nuttall ex Torrey & A.

canadensis var. glauca (Moench) Sudworth Picea glauca var. albertiana (S.Brown) Sargent Picea glauca var. densata Bailey Picea glauca var. porsildii Raup

genusPseudotsuga speciesPseudotsuga menziesii varietyPseudotsuga menziesii var. glauca (Mayr) Franco Bol. Soc. Brot. ser. 2, 24: 77. 1950. Barney Lipscomb Common

eisenhoweri B. Boivin Agoseris glauca subsp. aspera (Rydberg) Piper Agoseris glauca var. aspera (Rydberg) Cronquist Agoseris glauca var. pumila (Nuttall) Garrett

genusFragaria speciesFragaria virginiana Show Lower Taxa Fragaria virginiana subsp. glauca, Fragaria virginiana subsp. grayana, Fragaria virginiana subsp. platypetala

subfamilyEricaceae subfam. Arbutoideae genusArctostaphylos speciesArctostaphylos glauca Lindley Edwards’s Bot. Reg. 21: sub plate 1791. 1835 ,. V. Thomas Parker

Astereae genusHerrickia speciesHerrickia glauca Show Lower Taxa Herrickia glauca var. glauca, Herrickia glauca var. pulchra (Nuttall) Brouillet Sida 21:

range of var. glauca often have densely pubescent lemmas, the distinguishing characteristic of var. birtella. None. Vulpia octoflora var. glauca, Vulpia octoflora

californica, Noccaea fendleri subsp. fendleri, Noccaea fendleri subsp. glauca, Noccaea fendleri subsp. idahoensis, Noccaea fendleri subsp. siskiyouensis

genusPoa subgenusPoa subg. Poa sectionPoa sect. Stenopoa Show Lower Taxa Poa glauca, Poa interior, Poa nemoralis, Poa palustris Dumort. Robert J. Soreng Treatment

Show Lower Taxa Claytonia exigua subsp. exigua, Claytonia exigua subsp. glauca Douglas ex Torrey & A. Gray Fl. N. Amer. 1: 200. 1838. John M. Miller Common

speciesPseudotsuga menziesii Show Lower Taxa Pseudotsuga menziesii var. glauca, Pseudotsuga menziesii var. menziesii (Mirbel) Franco Bol. Soc. Brot. ser

yucca Endemic Synonyms: Yucca angustifolia Pursh Yucca glauca var. gurneyi McKelvey Yucca glauca var. stricta (J. Sims) Trelease Yucca stricta Treatment

genusEustachys speciesEustachys glauca Chapm. Cynthia Aulbach Common names: Saltmarsh fingergrass Endemic Synonyms: Chloris glauca Treatment appears in FNA Volume

Portulacaceae Portulacaceae Claytonia exigua subsp. exigua Claytonia exigua subsp. glauca Claytonia multiscapa Claytonia parviflora subsp. grandiflora Barbara Alongi

LAYOUT:treatment:TUOYAL familyPlantaginaceae genusLagotis Show Lower Taxa Lagotis glauca Gaertner Novi Comment. Acad. Sci. Imp. Petrop. 14(1): 533, plate 18, fig

subgenusFestuca subg. Festuca sectionFestuca sect. Festuca speciesFestuca glauca Vill. Stephen J. Darbyshire, Leon E. Pavlickf Common names: Blue fescue Gray

root IllustratedEndemic Synonyms: Dioscorea cliffortiana Lamarck Dioscorea glauca Muhlenberg ex Bartlett Dioscorea hexaphylla Rafinesque Dioscorea hirticaulis Bartlett

LAYOUT:treatment:TUOYAL familyCannaceae genusCanna speciesCanna glauca Linnaeus Sp. Pl. 1: 1. 1753. W. John Kress, Linda M. Prince Common names: Louisiana

Gordon C. Tucker Common names: Western bog laurel Endemic Basionym: Kalmia glauca var. microphylla Hooker Fl. Bor.-Amer. 2: 41. 1834 Synonyms: Kalmia polifolia

also in n Europe. Rosa glauca, included by A. Rehder (1940) in sect. Caninae, belongs in sect. Rosa (I. Klášterský 1968). Rosa glauca is an infrequent introduction

Heliantheae) subtribe Ecliptinae genusPascalia Show Lower Taxa Pascalia glauca Ortega Nov. Pl. Descr. Dec., 39, plate 4. 1797. John L. Strother Etymology:

purpurea and A. glauca or A. parviflora occur. One hybrid has been named (as a species): Agoseris aurantiaca var. purpurea × A. glauca var. dasycephala

Common names: Nealley's threeawn Synonyms: Aristida purpurea var. glauca Aristida glauca Treatment appears in FNA Volume 25. Treatment on page 333. Illustrator:

Tucker Common names: Bog swamp or pale laurel Endemic Synonyms: Kalmia glauca Aiton Treatment appears in FNA Volume 8. Treatment on page 485. Mentioned

speciesPoa glauca subspeciesPoa glauca subsp. glauca Robert J. Soreng Common names: Glaucous bluegrass Synonyms: Poa ×tormentuosa Poa glauca subsp. glaucantha

maturing, not dehiscing, about 0.1 mm in diameter. 2n = ca. 65, 70. Poa laxa × glauca is an eastern low arctic entity which has passed under the name P. flexuosa

genusPoa subgenusPoa subg. Poa sectionPoa sect. Stenopoa speciesPoa glauca subspeciesPoa glauca subsp. rupicola (Nash) W.A. Weber Robert J. Soreng Common names:

genusPoa subgenusPoa subg. Poa sectionPoa sect. Stenopoa speciesPoa glauca varietyPoa glauca var. pekulnejensis (Jurtzev & Tzvelev) Prob. Robert J. Soreng Common

tribe Poeae genusVulpia speciesVulpia octoflora varietyVulpia octoflora var. glauca (Nutt.) Fernald Robert I. Lonard Synonyms: Vulpia octoflora var. tenella

LAYOUT:treatment:TUOYAL familyLiliaceae genusFritillaria speciesFritillaria glauca Greene Erythea 1: 153. 1893. Bryan Ness Endemic Treatment appears in FNA

Endemic Basionym: Fragaria virginiana var. glauca S. Watson Botany (Fortieth Parallel), 85. 1871 Synonyms: F. glauca Fernald F. multicipita Rydberg F. terrae-novae

subsp. dracunculina (S. Watson) H. M. Hall & Clements Artemisia glauca Artemisia glauca var. megacephala B. Boivin Treatment appears in FNA Volume 19. Treatment

speciesSmilax glauca Walter Fl. Carol., 245. 1788. Walter C. Holmes Common names: Wild sarsaparilla sawbrier Endemic Synonyms: Smilax glauca var. leurophylla S

appears to be allied with A. glauca and has been treated as a variety of the latter. Ecologically, it approaches A. glauca var. dasycephala; the two are

native forage species in western North America; P. alpina, P. arctica, and P. glauca are common components of alpine and arctic vegetation. Species of Poa sect

names: Small reedgrass Endemic Synonyms: Calamagrostis coarctata Agrostis glauca Treatment appears in FNA Volume 24. Treatment on page 716. Illustrator:

Calla sagittifolia Michaux Fl. Bor.-Amer. 2: 187. 1803 Synonyms: Peltandra glauca (Elliott) Feay ex A. W. Wood Treatment appears in FNA Volume 22. Illustrator:

Sierra Nevada. This is A. glauca var. laciniata of recent authors. The inclusion of A. parviflora within an expanded A. glauca is based partly on the mistaken

australis Ashe Magnolia australis var. parva (Ashe) Ashe Magnolia glauca Magnolia glauca var. pumila Nuttall Magnolia virginiana subsp. australis (Sargent)

var. aestivalis (Michaux) Regel V. linsecomii Buckley V. linsecomii var. glauca Munson V. rufotomentosa Small V. sinuata (Pursh) G. Don V. smalliana L.

laevigatus Bridel Muscol. Recent., suppl. 4: 76. 1818 Synonyms: Grimmia glauca Cardot Grimmia leucophaea Greville Grimmia sarcocalyx Kindberg Treatment

genusChenopodium subgenusChenopodium subg. Blitum sectionChenopodium sect. Glauca speciesChenopodium glaucum varietyChenopodium glaucum var. glaucum Steven

californica Fernald P. juncoides var. decipiens (Barnéoud) Fernald P. juncoides var. glauca (Hornemann) Fernald P. juncoides var. laurentiana Fernald P. maritima subsp

angustifolia var. mollis Engelmann Yucca arkansana var. paniculata McKelvey Yucca glauca var. mollis Engelmann ex Branner & Coville Treatment appears in FNA Volume

Betula alnus var. rugosa Du Roi Diss. Observ. Bot., 31. 1771 Synonyms: Alnus glauca Michaux Alnus incana var. americana Regel Alnus rugosa var. americana (Regel)

intergrades with P. glauca, as noted above. LaRoi, G.H. and J.R. Dugle. 1968. A systematic and genecological study of Picea glauca and P. engelmannii,

erosion potential, usually in shortgrass prairies, also with Artemisia, Yucca glauca, Krascheninnikovia, sometimes in Sarcobatus flats Elevation: 1200–1800 m

Salix commutata var. rubicunda Jepson Salix glauca subsp. orestera (C. K. Schneider) Youngberg Salix glauca var. orestera (C. K. Schneider) Jepson Treatment

genusChenopodium subgenusChenopodium subg. Blitum sectionChenopodium sect. Glauca speciesChenopodium glaucum varietyChenopodium glaucum var. salinum (Standley)

arctica. Salix arctica × S. glauca varieties: Hybrids are characterized by combinations of characteristics of S. arctica and S. glauca (G. W. Argus 1965, 1973;

AL familyPlantaginaceae genusLagotis speciesLagotis glauca subspeciesLagotis glauca subsp. glauca Reidar Elven, David F. Murray Illustrated Treatment appears

blades lanceolate or oblong, glaucous abaxially [7a.5 Chenopodium sect. Glauca] Chenopodium glaucum 4 Leaf blades triangular or rhombic, rarely lanceolate

tribeAsteraceae tribe Astereae genusHerrickia speciesHerrickia glauca varietyHerrickia glauca var. glauca Luc Brouillet Endemic Synonyms: Aster glaucodes var. formosus

root along the entire cutting; non-riparian species (e.g., S. bebbiana, S. glauca, and S. scouleriana), usually described as rooting poorly, do not have preformed

LAYOUT:treatment:TUOYAL familyPlantaginaceae genusLagotis speciesLagotis glauca subspeciesLagotis glauca subsp. lanceolata (Hultén) D. F. Murray & Elven J. Bot. Res

speciesPascalia glauca Ortega Nov. Pl. Descr. Dec., 39, plate 4. 1797. John L. Strother IntroducedIllustrated Synonyms: Wedelia glauca (Ortega) Hoffmann

Salix desertorum Richardson Salix glauca subsp. acutifolia (Hooker) Hultén Salix glauca var. alicea C. R. Ball Salix glauca subsp. desertorum (Richardson)

African aspilias may belong within Wedelia. Wedelia glauca is treated herein as Pascalia glauca, W. trilobata as Sphagneticola trilobata. A report of

tribeAsteraceae tribe Astereae genusHerrickia speciesHerrickia glauca varietyHerrickia glauca var. pulchra (S. F. Blake) Brouillet Sida 21: 897. 2004. Luc

Cichorieae genusCrepis speciesCrepis runcinata subspeciesCrepis runcinata subsp. glauca (Nuttall) Babcock & Stebbins Publ. Carnegie Inst. Wash. 504: 98. 1938. David

genusVernonia speciesVernonia glauca (Linnaeus) Willdenow Sp. Pl. 3: 1633. 1803. John L. Strother Endemic Basionym: Serratula glauca Linnaeus Sp. Pl. 2: 818

subgenusSalix subg. Chamaetia sectionSalix sect. Glaucae speciesSalix glauca varietySalix glauca var. villosa Andersson Proc. Amer. Acad. Arts 4: 68. 1858. George

LAYOUT:treatment:TUOYAL familyCelastraceae genusParnassia speciesParnassia glauca Rafinesque Autik. Bot., 42. 1840. Peter W. Ball Endemic Treatment appears

subgenusSalix subg. Chamaetia sectionSalix sect. Glaucae speciesSalix glauca varietySalix glauca var. stipulata Floderus in C. A. M. Lindman, Sv. Fanerogamfl.

eastern phase of S. glauca (corresponding to S. glauca var. cordifolia). Böcher later recognized two taxa on Greenland, S. glauca subsp. callicarpaea (including

subsp. laciniata Kenton L. Chambers IllustratedEndemic Synonyms: Calaïs glauca var. procera A. Gray Microseris procera (A. Gray) A. Gray Scorzonella procera (A

Standley Common names: Carex glauque IntroducedIllustrated Synonyms: Carex glauca Scopoli Treatment appears in FNA Volume 23. Treatment on page 420. Illustrator:

Common names: Waxy coneflower Endemic Synonyms: Rudbeckia californica var. glauca S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 48. Mentioned

Betulaceae Casuarinaceae Betulaceae Betulaceae Casuarinaceae Betulaceae Casuarina glauca Corylus americana Casuarina equisetifolia subsp. equisetifolia Corylus cornuta

Chloridoideae tribePoaceae tribe Cynodonteae genusMuhlenbergia speciesMuhlenbergia glauca (Nees) B.D. Jacks. Paul M. Peterson Common names: Desert muhly Treatment

Noccaeeae genusNoccaea speciesNoccaea fendleri subspeciesNoccaea fendleri subsp. glauca (A. Nelson) Al-Shehbaz & M. Koch Syst. Bot. 29: 382. 2004. Ihsan A. Al-Shehbaz

sterile intermediates between T. ×glauca and T. angustifolia occasionally occur, however. In spite of its sterility, T. ×glauca is remarkably successful ecologically

Betulaceae Casuarinaceae Betulaceae Betulaceae Casuarinaceae Betulaceae Casuarina glauca Corylus americana Casuarina equisetifolia subsp. equisetifolia Corylus cornuta

fruticosa var. fraseri (Pursh) Hooker O. fruticosa subsp. glauca (Michaux) Straley O. fruticosa var. glauca (Michaux) H. Léveillé O. fruticosa var. incana (Nuttall)

coloradensis (Rydberg) Rydberg Anticlea elegans (Pursh) Rydberg Anticlea glauca (Nuttall) Kunth Anticlea gracilenta (Greene) R. R. Gates Anticlea longa (Greene)

margins. Material collected in Arizona by Bartram and identified as either B. glauca Lorentz or B. microstoma Mitten is B. brevifolia. The type of B. microstoma

Common names: Marsh stitchwort Introduced Synonyms: Alsine glauca (Withering) Britton Stellaria glauca Withering Treatment appears in FNA Volume 5. Treatment

Salix arizonica, S. barclayi, S. boothii, S. candida, S. chlorolepis, S. glauca var. villosa, and S. planifolia. Placement of specimens from Anticosti Island

Mert. & W.D.J. Koch, F. elegans Boiss., F. gautbieri (Hack.) K. Richt., F. glauca Vill., F. kasmiriana Stapf, F. mairei St.-Yves, F. muelleri Vickery, F.

Canadian Weeds. 73. Typha latifolia L., Typha angustifolia L. and Typha glauca Godr. Canad. J. Pl. Sci. 66: 361--379. Grace, J. B. 1988. The effect of

Pinaceae Pinaceae Pinaceae Larix occidentalis Pseudotsuga menziesii var. glauca Larix laricina Tsuga canadensis John Myers John Myers John Myers John Myers

glabrous S. glauca var. villosa. Thin-layer chromatography of leaf phenolics in S. raupii revealed a pattern similar to those of S. glauca vars. villosa

pantropical weeds Argemone mexicana and, probably, A. ochroleuca. Argemone glauca is endemic to Hawaii. Three suffrutescent, perennial species are known from

brachycarpa subsp. niphoclada (Rydberg) Argus Salix fullertonensis Salix glauca var. niphoclada (Rydberg) Wiggins Salix muriei Salix niphoclada var. fullertonensis (C

g., on disturbed sites in eastern Canada. Natural hybridization with P. glauca, though reported, remains unverified (A.G. Gordon 1976). Because Picea mariana

Tufted hairgrass Deschampsie cespiteuse Synonyms: Deschampsia caespitosa var. glauca Treatment appears in FNA Volume 24. Treatment on page 628. Illustrator:

Centaureinae. Gabrielian, E. and C. E. Jarvis. 1996. Amberboa moschata, A. glauca, and A. amberboi (Asteraceae: Cardueae). A note on their taxonomy and typification

vigor of its principal host, Picea mariana (black spruce). White spruce (P. glauca) and red spruce (P. rubens) are less commonly infected. Occasional to rare

arcuata Rydberg Stanleya canescens Rydberg Stanleya fruticosa Nuttall Stanleya glauca Rydberg Stanleya heterophylla Nuttall Stanleya pinnata subsp. inyoensis Munz

Account Exped. Pittsburgh 2: 17. 1823 (as Stanleyea) Synonyms: Stanleya glauca var. latifolia Cockerell Stanleya pinnatifida var. integrifolia (E. James)

Hypericum glaucum Michaux H. sessiliflorum Willdenow ex Sprengel Myriandra glauca (Michaux) Spach Treatment appears in FNA Volume 6. Treatment on page 84

latifolia to form the probably even more competitive T. ×glauca, T. angustifolia and T. ×glauca should perhaps be classified as noxious weeds in parts of

Typhaceae Typhaceae Typha latifolia Typha angustifolia Typha domingensis Typha ×glauca John Myers John Myers John Myers

collections are needed. Hybrids: Salix ballii forms natural hybrids with S. glauca var. cordifolia (S. ×ungavensis Lepage). This sterile hybrid with aborted

with abaxial nectaries suggests that this variety may be a hybrid with S. glauca or S. brachycarpa, although it could also be with S. eastwoodiae, as suggested

considered that these taxa are populations of hybrids between members of the Y. glauca alliance of the Great Plains and Y. elata of the American Southwest. Reveal

Betulaceae Casuarinaceae Betulaceae Betulaceae Casuarinaceae Betulaceae Casuarina glauca Corylus americana Casuarina equisetifolia subsp. equisetifolia Corylus cornuta

salsuginea (Pallas) N. Busch Hesperis salsuginea (Pallas) Kuntze Pilosella glauca (Nuttall) Rydberg Sisymbrium glaucum Nuttall Stenophragma salsugineum (Pallas)

brizoides Nees & Meyen Fimbristylis diphylla subsp. diffusa D. B. Ward Fimbristylis glauca Vahl Fimbristylis polymorpha Boeckeler Scirpus diphyllus Retzius Treatment

or distinguished at varietal rank (var. campestris Silba). The names C. glauca R. Brown ex R. T. Baker & H. G. Smith and C. hugelii (Carrière) Franco have

Portulacaceae Portulacaceae Claytonia exigua subsp. exigua Claytonia exigua subsp. glauca Claytonia multiscapa Claytonia parviflora subsp. grandiflora Barbara Alongi

Betulaceae Casuarinaceae Betulaceae Betulaceae Casuarinaceae Betulaceae Casuarina glauca Corylus americana Casuarina equisetifolia subsp. equisetifolia Corylus cornuta

populations between Fragaria chiloensis subsp. pacifica and F. virginiana subsp. glauca occur in coastal areas between Vancouver Island and Point Sur, California

Habitat: Dry mixed woods and forests, Picea mariana-lichen woods, Picea glauca-Abies balsamea forests, wet to dry prairies, grassy balds, loess bluffs

oblanceolate, or obovate, apex acute, acuminate, convex, or rounded. Salix glauca 9 Petioles 1.3-5 mm, often shorter than or barely exceeding subtended buds;

quite short, and often sympatric with P. glauca (see next). It is most reliably distinguished from P. glauca by lemmas that are glabrous between the marginal

grows in the Russian Far East. It is often confused in herbaria with P. glauca (p. 576), but differs in having predominantly intravaginal branching, an

Mexico and southeastern and central Arizona. Hybrids between Y. elata and Y. glauca, Y. constricta, and Y. baileyi are thought to occur in areas of sympatry

Alaska, Calif., Oreg., Wash. Picea sitchensis intergrades extensively with P. glauca in the river inlets of north coastal British Columbia and coastal Alaska

separation becomes arbitrary. Putative hybrids between var. aurantiaca and A. glauca, A. grandiflora, A. monticola, and A. parviflora have been collected. Corolla

abundant in coastal sites of southeastern Florida. Serenoa repens forma glauca Moldenke was described as differing from the typical form of the species

Tex., n Mexico. The illegitimate name Berberis trifoliolata Moricand var. glauca (I. M. Johnston) M. C. Johnston has been used for plants with very strongly

M. Webber (1953), who noted that Y. baileyi possibly hybridizes with Y. glauca and Y. angustissima. None. None. window.propertiesFromHigherTaxa=[{"rank":"genus"

bruggemannii sometimes superficially resembles Poa abbreviata or small Poa glauca in the field, because of its small, dense inflorescence. None. None. window

mm. Poa hartzii subsp. vrangelica can be difficult to distinguish from P. glauca, but it has a looser habit and thin glumes. It grows along the Sagavanirktok

are hypothesized to have resulted from a former introgression of subsp. glauca into Fragaria chiloensis on the Pacific coast have been grouped under subsp

arctic; it is rare in both regions. Many plants included here tend towards Poa glauca (p. 576, e.g., scabrous branches, and intermediate leaf and panicle forms)

forms natural hybrids with S. arctica, S. glauca var. cordifolia, and S. uva-ursi. Salix arctophila × S. glauca var. cordifolia: Plants with villous leaves

natural hybrids with S. brachycarpa var. brachycarpa, S. eastwoodiae, S. glauca var. villosa, and S. wolfii. There are numerous intermediate specimens of

links it to P. secunda (p. 586) and P. ammophila (see next), the other to P. glauca (p. 576). Morphologically, it is closest to P. secunda and P. ammophila

J. M. Webber (1953) believed Yucca intermedia to be a hybrid between Y. glauca and Y. angustissima or Y. baileyi. S. D. McKelvey (1938–1947) recognized

aurantiaca; most also appear to have characteristics of A. monticola or A. glauca var. dasycephala. The exact parentage remains unclear. Agoseris ×elata occurs

(Canadian Forestry Service 1983), which has characteristics of both Picea glauca and P. engelmannii. These trees can similarly be called interior subalpine

being replaced by T. angustifolia and T. angustifolia × T. latifolia (T. ×glauca) at least partly due to human disturbance of habitats. There is a specimen

at higher elevations and farther inland may reflect introgression with A. glauca. Some lower-elevation populations historically have been segregated as subsp

runcinata, differing mainly in the dentate leaf margins. It differs from subsp. glauca mainly in having stipitate-glandular phyllaries. None. None. window.pro

and the United States. It is sometimes difficult to distinguish from P. glauca (p. 576). None. None. window.propertiesFromHigherTaxa=[{"rank":"species"

does not occur in that state, and his count is based on plants of subsp. glauca. None. None. window.propertiesFromHigherTaxa=[{"rank":"species","name":"Noccaea

planifolium. Weissia andersoniana R. H. Zander is a new name for Weissia glauca E. B. Bartram, an illegitimate name that has been used for this taxon. None

different chloroplast genome types within its northern populations, one like P. glauca and one like P. secunda. Robust plants of subsp. hartzii resemble those

hybrids with S. arctica, S. argyrocarpa, S. athabascensis, S. chlorolepis, S. glauca var. cordifolia, S. pedicellaris, and S. pellita. Hybrids with S. candida

have a relationship with S. brachycarpa similar to that of S. raupii to S. glauca. Both may have originated through mutation or hybridization. Hybrids: Salix

United States, and is spreading in the west. It can be distinguished from P. glauca (p. 576) and P. interior (see next) by its consistently short ligules, high

tawny and persistent bracts, and villous ovaries suggest a link with S. glauca; leaves with coarse, ferruginous hairs and serrate margins suggest S. lucida

from the southwestern United States to central Mexico. It differs from M. glauca, with which it may be confused, in its longer lemma awns, shorter rhizomes

several other species, including P. arctica (p. 529), P. arida (p. 599), P. glauca (p. 576), and P. pratensis (p. 522). Plants from the Columbia River Gorge

may belong to this species; alternatively, it may be a hybrid between P. glauca (p. 576) and P. arctica (p. 576) or P. macrocalyx. None. None. window.p

Salix myricoides forms natural hybrids with S. bebbiana, S. discolor, and S. glauca var. cordifolia. Hybrids with S. eriocephala have been reported (M. L. Fernald

Islands in Hudson Bay. In the field, Salix argyrocarpa can be confused with S. glauca. They are not closely related but both have staminate flowers with both

diverse beneath Picea glauca--Abies balsamea--dominated canopies. Lichen woodlands are characterized by scattered individuals of Picea glauca or P. mariana and

S. humilis, S. pellita, S. pulchra, and S. scouleriana. Hybrids with S. glauca var. cordifolia have been reported (C. K. Schneider 1921) but no convincing

population centers through time. Spruces---including white spruce (Picea glauca), black spruce (P. mariana), and red spruce (P. rubens)--- were dominant

circumboreal (and subalpine) in distribution. The dominant trees, Picea glauca, Abies balsamea, Larix laricina, Picea mariana, Pinus banksiana, Betula