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A Acoelorraphe Acoelorraphe wrightii Acoraceae Acorus Acorus americanus Acorus calamus Acrocomia Acrocomia totai Alisma Alisma gramineum Alisma lanceolatum

genusCeanothus subgenusCeanothus subg. Ceanothus Show Lower Taxa Ceanothus americanus, Ceanothus arboreus, Ceanothus cordulatus, Ceanothus cyaneus, Ceanothus

Schoenoplectus Show Lower Taxa Schoenoplectus acutus, Schoenoplectus americanus, Schoenoplectus californicus, Schoenoplectus deltarum, Schoenoplectus

familyCelastraceae genusEuonymus Show Lower Taxa Euonymus alatus, Euonymus americanus, Euonymus atropurpureus, Euonymus europaeus, Euonymus fortunei, Euonymus

LAYOUT:treatment:TUOYAL familyStyracaceae genusStyrax Show Lower Taxa Styrax americanus, Styrax grandifolius, Styrax japonicus, Styrax platanifolius, Styrax redivivus

sterile triploid, and A. americanus, a native fertile diploid (J. G. Packer and G. S. Ringius 1984; S. A. Thompson 1995). Acorus americanus is not only morphologically

LAYOUT:treatment:TUOYAL familyStyracaceae genusStyrax speciesStyrax americanus Lamarck in J. Lamarck et al., Encycl. 1: 82. 1783 (as americana) ,. Peter

LAYOUT:treatment:TUOYAL familyAraceae genusLysichiton speciesLysichiton americanus Hultén & H. St. John Svensk Botanisk Tidskrift 25:455. 1931 (as Lysichitum

d'Amérique IllustratedEndemic Synonyms: Ceanothus americanus var. intermedius (Pursh) Torrey & A. Gray C. americanus var. pitcheri Torrey & A. Gray C. intermedius Pursh

LAYOUT:treatment:TUOYAL familyCelastraceae genusEuonymus speciesEuonymus americanus Linnaeus Sp. Pl. 1: 197. 1753. Jinshuang Ma, Geoffrey A. Levin Common

tribeAsteraceae tribe Cardueae genusPlectocephalus Show Lower Taxa Plectocephalus americanus, Plectocephalus rothrockii D. Don in R. Sweet, Brit. Fl. Gard., ser. 2

IllustratedEndemic Basionym: Acorus calamus var. americanus Rafinesque Med. Fl. 1: 25. 1828 Synonyms: Acorus calamus var. americanus (Rafinesque) H. Wulff Treatment appears

Presl from Peru. The name Scirpes americanus was long misapplied to Schoenoplectus pungens; Schoenoplectus americanus was known as Scirpus olneyi (A. E

Muscol. Recent., suppl. 2: 4. 1812 Synonyms: Anacamptodon splachnoides var. americanus Hampe Campylodontium hypnoides Treatment appears in FNA Volume 28. Treatment

LAYOUT:treatment:TUOYAL familyAraceae genusLysichiton Show Lower Taxa Lysichiton americanus Schott Oesterreichisches Botanisches Wochenblatt 7: 62. 1857 (as Lysichitum)

subg. Alpini speciesJuncus stygius Show Lower Taxa Juncus stygius var. americanus Linnaeus Syst. Nat. ed. 10 2: 987. 1759. Ralph E. Brooks*, Steven E. Clemants*

×delilianus Spach, which was developed in France from a cross between C. americanus (eastern North America) and C. caeruleus Lagasca (Mexico). Some species

subgenusJuncus subg. Alpini speciesJuncus stygius varietyJuncus stygius var. americanus Buchenau Botanische Jahrbucher fur Systematik, Pflanzengeschichte und

Levin Common names: Running strawberry-bush Endemic Synonyms: Euonymus americanus var. obovatus (Nuttall) Dippel Treatment appears in FNA Volume 12. Treatment

Clemants* Common names: Alpine rush Synonyms: Juncus alpinoarticulatus subsp. americanus (Farwell) Hämet—Ahti Juncus alpinoarticulatus subsp. fuscescens (Fernald)

Cyperus haspan subsp. juncoides (Lamarck) Kükenthal Cyperus haspan var. americanus Boeckeler Cyperus juncoides Treatment appears in FNA Volume 23. Treatment

E. Small Syst. Bot. 3: 63. 1978 Humulus americanus Nuttall. Ernest Small Endemic Synonyms: Humulus americanus Nuttall Treatment appears in FNA Volume 3

1753 Synonyms: Cyperus ovularis (Michaux) Torrey Cyperus ovularis var. americanus Boeckeler Cyperus ovularis var. sphaericus Boeckeler Cyperus ovularis

zosterifolius subsp. zosteriformis (Fernald) Hultén Potamogeton zosterifolius var. americanus A. Bennett Treatment appears in FNA Volume 22. Illustrator: John Myers

20: 398. 1863,. Donna H. Miller, Harvey A. Miller Synonyms: Entosthodon americanus (Lindberg) Fife Treatment appears in FNA Volume 27. Treatment on page

Schoenoplectus americanus (S. G. Smith 1995). Schoenoplectus americanus, S. pungens, and S. deltarum belong to the small “Scirpus americanus complex” T. Koyama

tribeAsteraceae tribe Cardueae genusPlectocephalus speciesPlectocephalus americanus (Nuttall) D. Don in R. Sweet, Brit. Fl. Gard., ser. 2, 1: plate 51. 1830

sparingly branched. > 2 2 Leaves basal and cauline Juncus stygius var. americanus 2 Leaves all basal. > 3 3 Primary bract of infloresence much longer than

specimens of Styrax grandifolius can usually be distinguished from S. americanus by the hairs on the abaxial leaf blade surface, and the shape of the leaves

Illustrator ⠉ Styracaceae Styracaceae Styracaceae Styracaceae Styrax Styrax americanus Styrax grandifolius Styrax redivivus Barbara Alongi Barbara Alongi Barbara

Synonyms: Streptopus amplexifolius subsp. americanus (Schultes) Á. Löve & D. Löve Streptopus amplexifolius var. americanus Schultes Streptopus amplexifolius var

populations occur elsewhere. Although leaf and spadix size of A. calamus and A. americanus overlap, those measurements differ significantly, with A. calamus in general

foetidus John Myers John Myers John Myers Araceae Araceae Araceae Lysichiton americanus Calla palustris Peltandra sagittifolia John Myers John Myers John Myers

Spreading globe-flower American globe-flower Endemic Synonyms: Trollius americanus de Candolle Treatment appears in FNA Volume 3. Stems to 0.5-5.2 dm, base

foetidus John Myers John Myers John Myers Araceae Araceae Araceae Lysichiton americanus Calla palustris Peltandra sagittifolia John Myers John Myers John Myers

Illustrator ⠉ Styracaceae Styracaceae Styracaceae Styracaceae Styrax Styrax americanus Styrax grandifolius Styrax redivivus Barbara Alongi Barbara Alongi Barbara

Rocky Mountain fringed thistle Endemic Basionym: Cnicus carlinoides var. americanus A. Gray Proc. Amer. Acad. Arts 10: 48. 1874 Synonyms: Cirsium centaureae (Rydberg)

serpyllifolius also has been applied to small-leaved, short-statured plants of C. americanus, some of which may be hybrids between that species and C. microphyllus

114: 313--328. Titford, W. J. 1812. Sketches toward a Hortus Botanicus Americanus. London. None. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Thalia"

blades; sides of mid culm deeply concave, rarely nearly flat. Schoenoplectus americanus 8 Spikelet scale apex notch (0.3–)0.5–1 mm deep, awns 0.5–1.5(–2.5) mm;

Durango, Sinaloa, Sonora). Plectocephalus rothrockii closely resembles P. americanus. Although the ranges of the two taxa approach each other in southeastern

molecular study of the complex may resolve this taxonomic problem. Aster americanus Onno, referable here, is an invalid name. None. None. window.properti

pungens. As Schoenoplectus deltarum combines some characteristics of S. americanus with most characteristics of S. pungens, it may be of hybrid origin. Intermediates

lacerate-toothed phyllary margins. Gray, in naming Cnicus carlinoides var. americanus, included as syntypes both California and Colorado specimens. F. Petrak