North america flora

Collection of online floras, including the Flora of China, Flora of North America, Flora of Missouri, Flora of Pakistan, and Trees and Shrubs of the Andes of Ecuador.

North america flora. 三白草属 san bai cao shu. Saururopsis Turczaninow. Herbs erect or ascending, rhizomatous. Stems longitudinally ridged and sulcate. Leaves entire; stipules membranous; petioles shorter than leaf blades. Inflorescence a raceme, opposite leaves or terminal. Flowers white when mature, small. Stamens usually 6, sometimes 8, rarely 3, longer than ...

Flora 32: 497–500. Semple, J.C. & Cook, R.E. (2006) Solidago gigantea Aiton. In: eFlora of North America. Flora of North America Editorial Committee. Available from: www.eFloras.org (accessed 25 March 2020). Thiers, B. (2020 [continuously updated]) Index Herbariorum: A global directory of public herbaria and associated staff.

The Missouri Botanical Garden Press plays a key role in the Garden's mission to discover and share knowledge about plants and their environment and provides an important outlet for the dissemination of botanical research. The Press publishes two peer-reviewed journals in addition to book-length titles and monographs.The Arctic wolf is a North American subspecies of the gray wolf, the world's largest canid. Adult male Arctic wolves measure between 25 and 31 inches (64 cm–79 cm) tall at the shoulder and can attain weights of up to 175 pounds (79 kg); females tend to be smaller and lighter. Arctic wolves usually live in groups of seven to 10 individuals but ...23 de jul. de 2019 ... 3 June 2019. Flora of North America North of Mexico. Volume 17, Magnoliophyta Tetrachondraceae to Orobanchaceae. (ISBN-13: 978-0-19-086851-2, ...Desert - Flora, Fauna, Ecosystems: In most cases floristic links among desert regions are indicated by the presence of related species; it is unusual for identical species to be found in more than one region, except where they have been introduced by humans. (One notable exception is the prickly saltwort [Salsola kali], which occurs in deserts in Central Asia, North Africa, California, and ...Category:Flora of North America. Category. : Flora of North America. This category is located at Category:Flora of Northern America. Note: This category should be empty. See the instructions for more information. There are no pages or files in this category. This list may not reflect recent changes ( learn more ).The 129 ornithophilous plant species in western North America have floristic affinities with one or the other of four geofloras: the Arcto-Tertiary flora ...

Evolutionary origins of the eastern North American–Mesoamerican floristic disjunction: Current ... and evolutionary responses to climate change. Studies on plant genera disjunct across the northern hemisphere, particularly between eastern North America ... and the evolution and fossil record of the Mexican flora more ...As our American membership grew and acknowledging that plants don’t recognize political boundaries, we changed our name to the North American Native Plant Society in 1999. In 1985 we founded North America’s foremost native plant magazine: Wildflower. The original magazine ceased publication in 2005, but it’s name lives on under the ...Jul 28, 2020 · Climate and Physiography. Soils. History of the Vegetation: Cretaceous (Maastrichtian)-Tertiary. Paleoclimates, Paleovegetation, and Paleofloras during the Late Quaternary. Vegetation. Phytogeograhy. Taxonomic Botany and Floristics. Weeds. Ethnobotany and Economic Botany. If you’re an avid traveler or a digital nomad looking for a unique and affordable way to explore North America, long-term stay RV parks are the perfect solution. Located in the heart of Arizona, Paradise RV Park is one of the most popular d...Welcome. Flora of North America (FNA) presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico. The Flora will appear in 30 volumes and will be ...三白草属 san bai cao shu. Saururopsis Turczaninow. Herbs erect or ascending, rhizomatous. Stems longitudinally ridged and sulcate. Leaves entire; stipules membranous; petioles shorter than leaf blades. Inflorescence a raceme, opposite leaves or terminal. Flowers white when mature, small. Stamens usually 6, sometimes 8, rarely 3, longer than ...

From the publisher: “North American Wildlife is a valuable reference guide to the most common and conspicuous wild plants and animals in North America. Birds and butterflies, ferns and frogs, mushrooms and mantra rays, seashells and salamanders-this 576 page book includes more than 2,000 plants and animals of all types.Pleistocene Holocene The study of the North American flora, vegetation, and fauna - its history and assembly - begins in the late Cretaceous with the major events staged later …Flora and fauna. North American flora and fauna species were distributed quite differently during the Wisconsin era, due to altered temperatures, surface water distribution, and in some cases coverage of earth surface by glaciers. A number of scientific studies have been conducted to determine species distribution, particularly during the Late ...The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series.The Cretaceous is named after creta, the Latin word for the white limestone known as chalk.The chalk of northern France and the white cliffs of south …The four centers of highest diversity include western North America, subarctic regions, Himalaya, and high Andes. The infrageneric classification of Draba is problematic, and preliminary molecular studies (M. Koch and I. A. Al-Shehbaz 2002) do not support the circumscriptions of most of the 17 sections recognized by O. E. Schulz (1927, 1936).

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Feral pig. A feral pig is a domestic pig which has gone feral, meaning it lives in the wild. The term feral pig has also been applied to wild boars, which can interbreed with domestic pigs. [1] They are found mostly in the Americas and Australia. Razorback and wild hog are Americanisms applied to feral pigs or boar–pig hybrids .Large predators are at home in the temperate rainforests of North America, from wolves to bears to mountain lions. This mountain lion cub will one day grow to be upward of 6 feet long and weigh ...Where previously it had predicted full-year sales in the region to be basically flat, it now expects them to be down slightly. Under Armour delivered some bad news this morning. Beyond a 3.2% drop in its quarterly North American sales, the ...Avianca, the Bogota-based Star Alliance carrier, will introduce "branded fares" on its flights to the U.S and Canada. North America is about to get one more airline that sells basic economy tickets to destinations abroad. On Wednesday, Marc...

Species ca. 140 (33 in the flora): North America, Mexico, Europe, Asia, n Africa; introduced widely worldwide. Most species of Rosa occur in the cooler parts of the northern hemisphere. Only three or four species extend south of the Tropic of Cancer in the Old World, none in the New World.The Biota of North America Program. North American Vascular Flora. Taxonomic Data Center. Query Page North American Plant Atlas Species ca. 140 (33 in the flora): North America, Mexico, Europe, Asia, n Africa; introduced widely worldwide. Most species of Rosa occur in the cooler parts of the northern hemisphere. Only three or four species extend south of the Tropic of Cancer in the Old World, none in the New World. 15 de abr. de 2020 ... Abstract North America is a large continent with extensive climatic, geological, soil, and biological diversity. As biota faces threat from ...Flora of North America Editorial Committee: Email: Creation date: 27/09/16 00:00: Description: FNA presents in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico. Publisher nameCompiled by Tammy Charron Flora of North America Managing Editor, Missouri Botanical Garden. The legume volume of Flora of North America North of Mexico ...Bouteloua gracilis, the blue grama, is a long-lived, warm-season perennial grass, native to North America.. It is most commonly found from Alberta, Canada, east to Manitoba and south across the Rocky Mountains, Great Plains, and U.S. Midwest states, onto the northern Mexican Plateau in Mexico.. Blue grama accounts for most of the net primary productivity …Flora of North America also synthesizes the important regional floristic work and results of exploration of little-known areas currently underway in North America. A …Crataegus douglasii is a compact erect bushy shrub growing to 8–9 metres (26–30 feet) tall with a trunk of up to 10 centimetres (4 inches) thick. [3] It is covered in fan-shaped green leaves about 2.5–5 cm (1–2 in) long [3] with teeth along the distal margin. Thorns along the branches are 1–2.5 cm long. [3]Nov 4, 1993 · To be published in 14 volumes over the next 12 years, this long-awaited synoptic compendium represents the first and only comprehensive taxonomic guide to the extraordinary diversity of plant life blanketing our continent north of Mexico--including Greenland and the St. Pierre and Miquelon islands. The collaborative effort of more than 30 major ...

The pathogen responsible for the disease is Ceratocystis ulmi , a fungus native to Europe that was first discovered in North America in Colorado in the 1930s. Since the rapid spread of the disease in the 1960s, much research has been devoted to development of disease-resistant elms (R. J. Stipes and R. J. Campana 1981).

Ambrosia artemisiifolia is an annual plant that emerges in late spring. It propagates mainly by rhizomes, [clarification needed] but also by seed. [4] It is much-branched, and grows up to 70 centimetres (2.3 ft) in height. [9] The pinnately divided soft and hairy leaves are 3–12 centimetres (1.2–4.7 in) long. [9]The Flora of North America presents for the first time, in one comprehensive source, information on the names, taxonomic relationships, continent-wide distributions and morphological characteristics of all of the more than 20,000 species of plants native to or naturalized in North America north of Mexico. The volumes include scientific and ... Mentioned on page 12, 13, 19, 25, 33, 40. Herbs, perennial or annual; caudex woody or herbaceous, shoot buds arising from roots. Stems prostrate to erect, glabrous or glandular-pubescent in inflorescence. Leaves cauline, usually whorled proximally, alternate distally; petiole absent; blade sometimes ± fleshy, not leathery, margins entire.Products for 1st responders and roadside assistance vehicles. more. HELLA PRODUCT OVERVIEW 2020-2021. Third Edition. Discover the latest HELLA products. more. LIQUID CRYSTAL HD. Integration of a Liquid Crystal Display (LCD) in an LED headlamp opens up new paths for automotive lighting technology. Play video.Tagetes zypaquirensis. Bonpl. 1808. Tagetes zypaquirensis is a Latin American species of marigold in the family Asteraceae. It has been found in Central America, Colombia, and Ecuador. [1] [2] Tagetes zypaquirensis is an annual herb up to 100 cm (40 inches) tall. Leaves are pinnately compound with toothed leaflets.The Chihuahuan Desert (Spanish: Desierto de Chihuahua, Desierto Chihuahuense) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States.It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lower Pecos Valley in New Mexico, and a portion of southeastern Arizona, as well as the …Flora of North America North of Mexico Volume 10: Magnoliophyta: Proteaceae to Elaeagnaceae includes treatments prepared by 24 authors covering 454 species in 66 genera classified in 12 families. Onagraceae, the largest family in the volume, with 277 species in 17 genera, is especially richly represented in North America.Aug 8, 2023 · Flora of North America represents the first and only comprehensive taxonomic guide to the extraordinary diversity of plant life in North America north of Mexico. The collaborative effort of more than 30 major U.S. and Canadian botanical institutions, this series revises and synthesizes literally thousands of floristic monographs and regional ... A raccoon is a highly adapted omnivore native to North America. It weighs from 4 to 23 pounds (1.8 to 10 kg), and its length is 23.6 to 37 inches (60 to 95 cm). A raccoon’s common fur color is gray and brown, but others are red, black, golden, white or albino. It lives in forests, marshes, prairies and urban areas.University of North Carolina at Chapel Hill Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina at Chapel Hill. The Flora covers the biogeographic region of the moist, relictual, unglaciated southeastern North America: south of the glacial boundary and east of the “dry line” to the west that marks a marked ...

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Flora MacDonald Homesite. The exact location of the home in which Scottish Jacobite heroine and American Loyalist Flora MacDonald lived during her stay in North Carolina has, for decades, been the subject of much debate. With her husband Allan, MacDonald emigrated to North Carolina in 1774 and settled on a plantation purchased …The lake must have a surface area of at least 0.04 km 2 (4 ha). This was the original size cutoff instituted by the United States Environmental Protection Agency (EPA) in their 2007 National Lakes ...Passiflora, known also as the passion flowers or passion vines, is a genus of about 550 species of flowering plants, the type genus of the family Passifloraceae.. They are mostly tendril-bearing vines, with some being shrubs or trees.They can be woody or herbaceous.Passion flowers produce regular and usually showy flowers with a distinctive …Oct 29, 2009 · The story of North American exploration spans an entire millennium and involves a wide array of European powers and uniquely American characters. It began with the Vikings’ brief stint in ... This category includes the native flora of the Northeastern United States, in North America. Taxa of the lowest rank are always included. Higher taxa are included only if endemic. For the purposes of this category, the "Northeastern United States" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions.Flora 32: 497–500. Semple, J.C. & Cook, R.E. (2006) Solidago gigantea Aiton. In: eFlora of North America. Flora of North America Editorial Committee. Available from: www.eFloras.org (accessed 25 March 2020). Thiers, B. (2020 [continuously updated]) Index Herbariorum: A global directory of public herbaria and associated staff.The Chihuahuan Desert (Spanish: Desierto de Chihuahua, Desierto Chihuahuense) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States.It occupies much of far West …Pterospora andromedea. Nutt. 1818. Pterospora, commonly known as pinedrops, [1] woodland pinedrops, [2] Albany beechdrops, or giant bird's nest is a North American genus in the subfamily Monotropoideae of the heath family, and includes only the species Pterospora andromedea. [3] [4] It grows as a mycoheterotroph (relying on fungi rather …Flora of North America General Admission Ages 13 and up Today's Hours 9 a.m.–5 p.m. Last entry at 4:30 p.m. Spirits in the Garden Friday, October 27 6:00 PM - 8:30 PM Fall/Winter Class Registration Tuesday, August 1 - Wednesday, February 28 12:00 AM - 12:00 AM Fest-of-Ale 6:00 PM - 9:00 PM Ghouls in the Garden Flora of North America Quick LinksA raccoon is a highly adapted omnivore native to North America. It weighs from 4 to 23 pounds (1.8 to 10 kg), and its length is 23.6 to 37 inches (60 to 95 cm). A raccoon’s common fur color is gray and brown, but others are red, black, golden, white or albino. It lives in forests, marshes, prairies and urban areas. ….

North America flora and fauna map, flat elements. Animals, birds. Illustration about bear, constructor, lynx, flat, isolated, earth, jaguar, andean, fauna, ...Species ca. 400 (90 in the flora): North America, Mexico, West Indies, Central America, South America (Colombia only), Eurasia, n Africa. Quercus is without doubt one of the most important woody genera of the Northern Hemisphere. Historically, oaks have been an important source of fuel, fodder, and building materials throughout their range.Abstract North America is a large continent with extensive climatic, geological, soil, and biological diversity. As biota faces threat from habitat destruction …Feb 20, 2003 · Hardcover. Published: 20 February 2003. 640 Pages | frontispiece & 520 maps & line illus. 8-1/2 x 11 inches. ISBN: 9780195152074. Library Recommendation Form. Bookseller Code (04) The region includes Canada, the Caribbean, Central America, Greenland, Mexico, and the United States . North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of the Earth 's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia ...Flora of North America North of Mexico Volume 11: Magnoliophyta: Fabaceae, Parts 1 and 2 includes treatments prepared by 70 authors covering 1,345 species in 153 genera. . The Fabaceae, or bean family, is the third largest plant family in the worHardcover. Published: 20 February 2003. 640 Pages | frontispiece & 520 maps & line illus. 8-1/2 x 11 inches. ISBN: 9780195152074. Library Recommendation Form. Bookseller Code (04)Seed 1. x = 8. Species 200+ (44 in the flora): North America, Mexico, Central America, South America, Eurasia, Africa, Australia; most abundant in north-temperate regions. Prunus is important economically; it includes almonds, apricots, cherries, nectarines, peaches, and plums. Most commercial species are of Old World origin; Native Americans ...Toggle navigation. Flora of North America. Revisions Since Print; Actions. View source; History; Page; Discussion; Tools North america flora, Add To Cart. NOVON 07 (4), A Journal for Botanical Nomenclature. Our Price: $20.00. Add To Cart. View More Products. The Missouri Botanical Garden Press plays a key role in the Garden's mission to discover and share knowledge about plants and their environment and provides an important outlet for the dissemination of botanical research., Seed 1. x = 8. Species 200+ (44 in the flora): North America, Mexico, Central America, South America, Eurasia, Africa, Australia; most abundant in north-temperate regions. Prunus is important economically; it includes almonds, apricots, cherries, nectarines, peaches, and plums. Most commercial species are of Old World origin; Native Americans ..., Gondwana (/ ɡ ɒ n d ˈ w ɑː n ə /) was a large landmass, sometimes referred to as a supercontinent.It was formed by the accretion of several cratons (a large stable block of the Earth's crust), beginning c. with the East African Orogeny, the collision of India and Madagascar with East Africa, and was completed c. with the overlapping Brasiliano and …, Jul 28, 2020 · Climate and Physiography. Soils. History of the Vegetation: Cretaceous (Maastrichtian)-Tertiary. Paleoclimates, Paleovegetation, and Paleofloras during the Late Quaternary. Vegetation. Phytogeograhy. Taxonomic Botany and Floristics. Weeds. Ethnobotany and Economic Botany. , Native to north-central Argentina, mistol (Ziziphus mistol) is a spiny, fruit-bearing tree that has small flowers and reddish-brown, drupe-like fruits. ... Native to South America, maitén (Maytenus boaria) is an evergreen tree that belongs to the Celastraceae family, and its name is of Mapuche origin. The tree is widely distributed throughout ..., Apr 3, 2014 · B. frondosa is an annual herb that flowers in August and September in its native North America (Flora of North America, 2014) and in Europe (Brändel, 2004). In New Zealand it flowers in November to May (Webb et al., 1988).The achenes (seeds) are in two forms, the central ones being brown and elongated, the peripheral ones black and thicker ... , Nov 4, 1993 · To be published in 14 volumes over the next 12 years, this long-awaited synoptic compendium represents the first and only comprehensive taxonomic guide to the extraordinary diversity of plant life blanketing our continent north of Mexico--including Greenland and the St. Pierre and Miquelon islands. The collaborative effort of more than 30 major ... , Medical flora: or, Manual of the medical botany of the United States of North America ... Binomial names often reflect contemporary networks of science and ..., 1a. Cucumis melo subsp. melo. Ovary and young fruit pilose or lanate, with spreading hairs; fruit in cultivated forms fragrant and sweet. Farmlands, roadsides. Anhui, Jiangsu, Shandong, Xinjiang; also cultivated throughout China [native to Old World tropics and subtropics; introduced in New World tropics; widely cultivated in tropical and ..., The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series.The Cretaceous is named after creta, the Latin word for the white limestone known as chalk.The chalk of northern France and the white cliffs of south …, Plant List of Attributes, Names, Taxonomy, and Symbols. The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories. , The flora of North America is remarkably rich and interesting, in part because of the continent's geological history and in part because of its diverse topography and range of climates. The area north of Mexico alone has about 18,600 species of vascular plants. Thirty-eight percent of the genera native to this area are found only in North ..., North America has no capital city because it is a continent, not a country. However, the countries that make up North America have their own capital cities. The capital city of the United States of America is Washington, D.C., which is loca..., Diatoms of North America is a collaborative work in progress, growing and changing as science advances. Taxon Contributors. ... This project depends on many people to document the diverse diatom flora of streams, rivers, wetlands, lakes, springs, soils, estuaries and coastal zones. Become a contributor ., Viburnum acerifolium, the mapleleaf viburnum, maple-leaved arrowwood or dockmackie, is a species of Viburnum, native to eastern North America from southwestern Quebec and Ontario south to northern Florida and eastern Texas. It …, Eyre, F. H., ed. 1980. Forest cover types of the United States and Canada. Washington, DC: Society of American Foresters. 148 p. [905] 21. Flora of North America Association. 2000. Flora of North America north of Mexico. Volume 2: Pteridophytes and gymnosperms, [Online]. Flora of North America Association (Producer)., That the two most widespread North American vascular plant species, Taraxacum officinale and Capsella bursa-pastoris happen to be exotic, might concern some natural historians, weed specialists, plant ecologist, or others who believe that our native flora needs protection against all exotic invaders. Many thousands of scholarly papers have been …, Flora of North America Volume 7 will be the eighth of 19 volumes on dicotyledons to be published in the Flora of North America North of Mexico series. It treats 923 species classified among 125 genera in 11 families; the larger families covered in Volume 7 include Brassicaceae (Mustard family), Cleomaceae (Spiderflower family), and Salicaceae (Willow family)., Flora of North America North of Mexico Guide for Contributors—March 2004 I. INTRODUCTION AND COVERAGE The Flora of North America North of Mexico, to be published in 30 volumes, is a synoptic floristic account of the plants of Greenland, St. Pierre and Miquelon, Canada, and the continental United States of America (including the Florida Keys ... , The idea that humans wiped out North America's giant mammals, or megafauna, is known as the "overkill hypothesis." First proposed by geoscientist Paul Martin more than 40 years ago, it was inspired in part by advances in radiocarbon dating, which seemed to indicate an overlap between the arrival of the first humans in North America …, Chaparral in the Santa Ynez Mountains, near Santa Barbara, California. Chaparral (/ ˌ ʃ æ p ə ˈ r æ l, ˌ tʃ æ p-/ SHAP-ə-RAL, CHAP-) is a shrubland plant community found primarily in California, in southern Oregon and in the northern portion of the Baja California Peninsula in Mexico.It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) …, The story of North American exploration spans an entire millennium and involves a wide array of European powers and uniquely American characters. It began with the Vikings’ brief stint in ..., Medical flora: or, Manual of the medical botany of the United States of North America ... Binomial names often reflect contemporary networks of science and ..., Flora of North America: Volume 1: Introduction. To be published in 14 volumes over the next 12 years, this long-awaited synoptic compendium represents the first and only comprehensive taxonomic guide to the extraordinary diversity of plant life blanketing our continent north of Mexico--including Greenland and the St. Pierre and Miquelonislands. , Species ca. 2000 (139 in the flora): North America, Mexico, West Indies, Bermuda, Central America, South America, Eurasia, Africa, Atlantic Islands, Indian Ocean Islands, Pacific Islands, Australia. Euphorbia is one of the two or three most species-rich angiosperm genera worldwide. Members of the genus occur in almost all habitat types, and ... , Species ca. 60 (20 in the flora): North America, Mexico, Central America, n, w South America, Eurasia, Africa; predominately northern boreal and temperate regions, also high elevations in subtropical and tropical regions. Cornus as treated here is a monophyletic genus (Z. E. Murrell 1993; Xiang Q. Y. et al. 2006) that has at various times been ..., Osmundastrum is genus of leptosporangiate ferns in the family Osmundaceae with one living species, Osmundastrum cinnamomeum, the cinnamon fern.It is native to the Americas and eastern Asia, growing in swamps, bogs and moist woodlands.. In North America it occurs from southern Labrador west to Ontario, and south through the …, Origin and history of cultivation Flowers on a cultivated blueberry bush Fresh blueberries. The genus Vaccinium has a mostly circumpolar distribution, with species mainly present in North America, Europe, and Asia. Many commercially available species with English common names including "blueberry" are from North America, particularly Atlantic …, Welcome. Flora of North America (FNA) presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico. The Flora will appear in 30 volumes and will be ..., Species ca. 140 (33 in the flora): North America, Mexico, Europe, Asia, n Africa; introduced widely worldwide. Most species of Rosa occur in the cooler parts of the northern hemisphere. Only three or four species extend south of the Tropic of Cancer in the Old World, none in the New World. , North America - Wildlife, Flora, Fauna: The coming of Europeans and their activities over a period of some five centuries have vastly transformed the plant and animal life of North …, Isotria verticillata, commonly known as the large whorled pogonia and purple fiveleaf orchid, is an orchid species native to eastern North America. Distribution [ edit ] The orchid's native range is across the Eastern United States in the Appalachian Mountains , the central and eastern Great Lakes region , and elsewhere from Maine south to Florida , …, All Floras Advanced Search Login | eFloras Home | Help: Flora of North America Family List: Online Volumes. Volume 1: Introduction: Volume 2: Pteridophytes and Gymnosperms 31 families: Volume ... Flora of North …