Flora of north america

Symphyotrichum novi-belgii is a North American species which has become naturalized in parts of Europe, thriving in ruderal and waste areas, and mainly spreading vegetatively ().According to Hoffmann (1996), S. novi-belgii is considered as one of the most frequently occurring aster species in central Europe. Moreover, it belongs to these few …

Flora of North America : Taxon Id: Name : Volume: 250067242: Packera debilis : FNA Vol. 20: eFlora Home | People Search | Help | ActKey | Hu Cards | Glossary |Senecio aronicoides is a species of flowering plant in the aster family known by the common name rayless ragwort.It is native to Oregon and northern and central California, where it can be found in the woodlands and forests of mountains and foothills, often in relatively dry habitat.It is a biennial or perennial herb growing up to about 90 centimeters …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 …Heads radiate; short outer pappi usually obvious, sometimes obscure; w North America (sect. Phyllotheca) ... rays (3.5-)5-11(-20) mm; prairies and below alpine zone in mountains, c, w North America > 16: 16 Plants (5-)16-40(-70) cm; distal leaves usually lanceolate or oblanceolate to oblong, rarely ovate (if lanceolate-triangular ...The botanical community already recognizes a different set of family relationships than presented in the Flora of North America North of Mexico. Keys. Three different keys are provided here to permit more effective identification throughout the annual phenological cycle in Populus: a key to flowering specimens that may also be used (but not ...The erect habit, bright green and usually glabrous foliage, and dark involucres of Mirabilis melanotricha are distinctive in combination. Once collected and pressed, M. melanotricha becomes yet another "difficult" Mirabilis. In 1911, P. C. Standley noted that this species (as Allionia melanotricha) was one of the most variable in the genus ...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 ...

Concise, easy to use, and beautifully bound and illustrated, Flora of North America is an indispensable working resource for botanists, conservationists, ecologists, agronomists, foresters, range and land managers, horticulturists,--anyone with a serious interest in the distribution, habitat, morphology, and survival of the wide-ranging plant ...Flora of North America North of Mexico: Volume 19: Magnoliophyta: Asteridae, Part 6: Asteraceae, Part 1 Edited by Flora of North America Editorial Committee Flora of North America. 600 maps, 130 line illustrations; A compelling resource for plant taxonomists, ecologists, wildlife specialists, land managers, horticulturalists and moreThe commercial use of Carya is substantial. The cultivated pecan, C . illinoinensis , is the most important nut tree native to North America, and the wood of the true hickories is unequaled for its use in tool handles because of the combined strength and shock resistance. Hickory nuts are also an important, high-quality food source for wildlife ... Flora of North America : Taxon Id: Name : Volume: 233501079: Quercus rubra : FNA Vol. 3: eFlora Home | People Search | Help | ActKey | Hu Cards | Glossary |A morphologically based phylogenetic analysis of North American asters was done by Jones and D. A. Young (1983). They identified a group similar to the current Symphyotrichum, but did not segregate it from Aster. G. L. Nesom (1994b, 1997) segregated Symphyotrichum from Aster in a strict sense on a morphologic basis. Emersed plants with erect to ascending petioles; leaf blades lanceolate to ovate. Sagittaria ambigua: 19 Emersed plants with recurved petioles; leaf blades linear to sagittate. Sagittaria cuneata: 20 Bracts distinct or connate much less than ¼ total length. > 21: 20 Bracts connate at least ¼ total length. > 23: 21PLANTS Database 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. Flora of North America Editorial Committee, (eds.). 1993. Flora of North America north of Mexico. 3+ vols.. Oxford University Press, New York and Oxford. District of Columbia, Oklahoma: Distribution: THNO: George, G.G. 1992. A synonymized checklist of the plants found growing in Rhode Island. Rhode Island Wild Plant Society.

Wild Fern Plants in Green Forest of Canada, Flora of North America, Northern Wilderness Wildlife. Beautiful Nature.. Photo about forest, cabin, ecotourism, ...Species 10 (3 in the flora): widespread in temperate and tropical regions, North America, Europe, and Asia. Morus nigra Linnaeus has been reported in floras by various authors (J. K. Small 1903, 1933; R. W. Long and O. Lakela 1971), apparently based on dark-fruited M . alba . Sambucus is a genus of flowering plants in the family Adoxaceae.The various species are commonly referred to as elder, elderflower or elderberry.The genus was formerly placed in the honeysuckle family, Caprifoliaceae, but was reclassified as Adoxaceae due to genetic and morphological comparisons to plants in the genus Adoxa.. Flowers of European …Flora of North America : Taxon Id: Name # Lower Taxa : Volume: 111791: Ephemerum: eFlora Home | People Search | Help | ActKey | Hu Cards | Glossary |North American botany by dedi-cating Volume 18 of Flora of North America to him. This vol-ume is scheduled to be one of the last to be published and will mark the completion of the series. Stan was the leader in developing a strategy for the Flora of North America project in the mid-1960s, continuing in a central role until the early 1970s.

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Species 52, including 1 hybrid (52 in the flora): North America, Mexico; introduced in the Old World. The identification of sunflower species has long been problematic. C. B. Heiser et al. (1969) felt that the greatest contribution of their sustained efforts to understand sunflower taxonomy was not providing an easy way to identify sunflowers ...Crataegus (/ k r ə ˈ t iː ɡ ə s /), commonly called hawthorn, quickthorn, thornapple, May-tree, whitethorn, Mayflower or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa and North America. The name "hawthorn" was originally …Bromus. Treatment appears in FNA Volume 24. Treatment on page 193. Plants perennial, annual, or biennial; usually cespitose, sometimes rhizomatous. Culms 5-190 cm. Sheaths closed to near the top, usually pubescent; auricles sometimes present; ligules membranous, to 6 mm, usually erose or lacerate; blades usually flat, rarely involute.Flora of North America Editorial Committee, (eds.). 1993. Flora of North America north of Mexico. 3+ vols.. Oxford University Press, New York and Oxford. District of Columbia, Oklahoma: Distribution: THNO: George, G.G. 1992. A synonymized checklist of the plants found growing in Rhode Island. Rhode Island Wild Plant Society.Orchidaceae are by far the largest and most diverse monocot family and rank among the largest families of flowering plants. An accurate account of the number of genera and species has eluded orchid scientists, and species counts published in the last 20 years range from 15,000 to 35,000. New species are continually being described.

Flora of North America North of Mexico Volume 28, Bryophyta, Part 2, has been sent to Oxford University Press for printing. This marks the 17th volume to be published in a 30-volume set for the Flora of North America series. The volume has 702 pages covering 48 families, 206 genera, and 698 species. With the publication of this volume, the ...Lactuca schimperi Jord. Lactuca sinuata Forssk. Lactuca virosa is a plant in the Lactuca (lettuce) genus, often ingested for its mild analgesic and sedative effects. [2] It is related to common lettuce ( L. sativa ), and is often called wild lettuce, bitter lettuce, laitue vireuse, opium lettuce, poisonous lettuce, tall lettuce, great lettuce ...Discussion. Species ca. 60 (20 in the flora). Cornus as treated here is a monophyletic genus (Z. E. Murrell 1993; Xiang Q. Y. et al. 2006) that has at various times been more narrowly circumscribed by other authors who have chosen to recognize morphological variation in this diverse group as worthy of generic segregation [for example, Arctocrania (Endlicher) Nakai, Benthamia Lindley (not A ...FLORA OF NORTH AMERICA FNA presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, …The first complete treatment of the sedges of North America in more than half a century, this volume tackles the notoriously difficult to identify Cyperaceae with illustrations of all species in the group, emphasizing its great ecological importance. With extensive information on the more than 460 species of Carex, this third volume out of five covering the monocots of North America also ...Flora of North America: Volume 1: Introduction by unknown from Flipkart.com. Only Genuine Products. 30 Day Replacement Guarantee. Free Shipping.• Flora of North America North of Mexico. 12+ vols. New York and Oxford, 1993+.• The PLANTS Database @ United States Department of Agriculture• NatureServe Explorer Archived 2010-01-10 at the Wayback MachineDescurainia incana. 8. Fruits not appressed to rachises; fruiting pedicels horizontal, divaricate, or ascending. > 9. 9. Leaf blades 2- or 3-pinnate; fruit septums appearing 2- or 3-veined. Descurainia sophia. 9. Leaf blades usually 1-pinnate (rarely 2-pinnate in D. sophioides); fruit septums not veined.Treatment appears in FNA Volume 2. Trees to 30m; trunk to 1.5m diam.; crown broadly conic. Bark brownish, scaly and fissured. Twigs yellow-brown, densely pubescent. Buds ovoid, 1.5-2.5mm. Leaves (5-)15-20 (-25)mm, mostly appearing 2-ranked, flattened; abaxial surface glaucous, with 2 broad, conspicuous stomatal bands, adaxial surface ...FLORA OF NORTH AMERICA FNA presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, …

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).

The North American flora has representatives of only two sections of subg. Haplostylae: sect. Longirostres Kunth and sect. Polycephalae C. B. Clarke. Sect. Longirostres, comprising both cespitose and clonal species, contains some of the largest, most robust species in the genus (e.g., Rhynchospora careyana, R. corniculata, R. inundata), with ...Plants in open, alpine and arctic habitats often have leaf blades orbiculate to orbiculate-ovate, 10-20 mm, apices obtuse, anthers ca. 1 mm, and styles 3-4.5 mm, and have been called Orthilia secunda subsp. obtusata. E.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 ...Rubus flagellaris is extremely polymorphic, ranging from plants with low-arching (and later creeping) stems and relatively few prickles to low, creeping plants with abundant prickles. Individual plants in some years will produce abundant, arching, poorly armed stems, and in others creeping, well-armed stems. Prickle shape also varies in these ...Genera 7, species 59 (2 genera, 17 species in the flora). The fruit in Juglandaceae superficially resembles a drupe, with a hard "stone" surrounded by a soft, often fleshy husk. The husk, however, is not part of the fruit wall (it develops from the involucre and calyx), and the fruit is actually a nut (T. S. Elias 1972; W. E. Manning 1978).Flora of North America (FNA) 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.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.Aug 16, 2023 · Volumes under Production. The following volumes are currently in preparation or production mode. Provisional publications that have been through the editorial process and await publication are available here . Click on a volume # for individual families, genera, contributors names and email addresses, and if the manuscript has been received.

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Discussion. Species ca. 25 (9 in the flora). Philadelphus has a relictual distribution in western and southeastern North America, Mexico, and Central America (from southwestern Canada south in the western cordillera to Panama); southern Europe (perhaps only by human introduction); the Caucasus; and eastern Asia. It is naturalized elsewhere, including most temperate areas of the western and ...Common names: Swamp laurel oak. Treatment appears in FNA Volume 3. Trees, tardily deciduous, to 40 m. Bark dark-brown to black, ridges flat, furrows deep. Twigs redbrown, (1-) 1.5-2.5 mm diam., glabrous. Terminal buds dark redbrown, ovoid to subconic, 2.5-6 mm, distinctly 5-angled in cross-section, glabrous or with tuft of reddish hairs at apex.eFlora Search Page. Flora of North America. Family List. Total: 294 records, 200 on this page.1:28. US startup NovoHydrogen Holdings LLC received a $20 million equity investment from Modern Energy Group LLC to develop green hydrogen production plants across North America as the US pushes ...Species 10-12, most intergrading and sometimes treated at subspecies rank (8 in the flora). The taxonomy of the genus is problematic. E. O. Beal (1956) departed dramatically from previous North American treatments in recognizing a single polymorphic species, Nuphar lutea (name of European origin), with several subspecies formerly treated as ...Divide the class into groups covering North American land biomes (tundra, taiga, temperate forest, chaparral, desert, grassland). Ask each team to produce a poster illustrating the …Discussion. Species 60(-2000) (15 in the flora). The type of the genus, Taraxacum officinale, is conserved.This name is linked to the (very general) description of Leontodon taraxacum Linnaeus. A. J. Richards (1985) typified T. officinale, via L. taraxacum, on a specimen that is apparently referable to T. campylodes Haglund, a microspecies of sect. Crocea restricted to Lapland, which thus ...Flora of North America North of Mexico. 19+ vols. New York and Oxford. Vol. 13. To cite a particular part of a volume provisionally published, cite as: Author, Date, Title (e.g. Genus name, Flora of North America North of Mexico, Provisional Publication), Publishing institution, Date of Publication, URL, Date actually viewed.Rubus strigosus: foliage showing the large leaf of a first-year shoot, and the smaller leaves of a second-year shoot. Rubus strigosus, the American red raspberry or American raspberry, is a species of Rubus native to much of North America.It was often treated as a variety or subspecies of the closely related Eurasian Rubus idaeus (red raspberry or … ….

Sanguinaria canadensis, bloodroot, is a perennial, herbaceous flowering plant native to eastern North America. It is the only species in the genus Sanguinaria, included in the poppy family Papaveraceae, and is most closely related to Eomecon of eastern Asia.. Sanguinaria canadensis is sometimes known as Canada puccoon, bloodwort, redroot, red puccoon, and black paste.This category includes the native flora of Mexico, in North America. Taxa of the lowest rank are always included. ... Pages in category "Flora of Mexico" The following 200 pages are in this category, out of approximately 1,476 total. This list may not reflect recent changes.Genera 23, species 1000-1100 (2 genera, 78 species in the flora). The Violaceae is predominantly tropical with worldwide distribution. Most genera are monotypic or oligotypic and are restricted to the New World or Old World tropics (H. E. Ballard et al. 1998; G. A. Wahlert et al. 2014).Aronia berries. Aronia is a genus of deciduous shrubs, the chokeberries, in the family Rosaceae native to eastern North America and most commonly found in wet woods and swamps. The genus Aronia is considered to have 3 species. The most common and widely used is Aronia melanocarpa (black chokeberry) which emerged from Eastern North …Flora of North America The Genera of North American Plants. By Thomas Nuttall. Introduction by ... tral North America. By Per Axel Rydberg. Vol. 1. Pp. 1-504. Vol. 2. Pp. 505-969. Facsimile of the ...Flora of North America : Taxon Id: Name # Lower Taxa : Volume: 114616: Haploesthes: eFlora Home | People Search | Help | ActKey | Hu Cards | Glossary |Species ca. 390 (173 in the flora): nearly worldwide, mostly in temperate regions. The North American and Central American species of Erigeron have been divided into sections (G. L. Nesom 1989c, 1990g, 1994b; Nesom and R. D. Noyes 1999), emphasizing variation in habit (especially taprooted versus rhizomatous and fibrous-rooted), vestiture ...Online floras and similar projects. Polygonatum odoratum. Photos by The Biodiversity of the Hengduan Mountains Project Flora of north america, Rubus strigosus: foliage showing the large leaf of a first-year shoot, and the smaller leaves of a second-year shoot. Rubus strigosus, the American red raspberry or American raspberry, is a species of Rubus native to much of North America.It was often treated as a variety or subspecies of the closely related Eurasian Rubus idaeus (red raspberry or …, Aronia berries. Aronia is a genus of deciduous shrubs, the chokeberries, in the family Rosaceae native to eastern North America and most commonly found in wet woods and swamps. The genus Aronia is considered to have 3 species. The most common and widely used is Aronia melanocarpa (black chokeberry) which emerged from Eastern North …, Plants 50-150 cm (rhizomes absent or poorly developed); leaves 8-15 × 0.15-0.5(-1) cm Helianthus angustifolius: 28 Plants 150-260 cm (rhizomes well developed); leaves 9-22 × 0.7-4 cm Helianthus simulans: 29 Leaves sessile or nearly so, margins often irregularly toothed or lobed; ray laminae 8-11 mm > 30: 29, Dec 15, 2020 · Etymology: For Olaus (Olof) Johannes Rudbeck, 1630–1702, and Olaus (Olof) Olai Rudbeck, 1660–1740, father and son, professors at Uppsala University, predecessors of Linnaeus. Treatment appears in FNA Volume 21. Treatment on page 44. Mentioned on page 43, 45. Annuals, perennials, subshrubs, or shrubs [perennials], mostly 10–80 (–200) cm ... , North American Wildland Plants - Stubbendieck et al. Range Plant Handbook - USDA Forest Service Weeds of the West - Tom D. Whitson Flora of the San Juans: A field guide to the mountain plants of southwestern Colorado, Susan Komarek, ... 1000 Weeds of North America, Old, 2013 Flora of the Wasatch, High Country Apps, 2015 Virginia Tech Tree …, Plants perennial; sometimes cespitose, sometimes rhizomatous, sometimes stoloniferous. Culms 8-180 (220) cm, ... So far as is known, all species that are native to North America, as well as many species native to northern Eurasia, are tetraploids with one additional haplome, the H genome from Hordeum sect. Critesion. ..., If you live in North Carolina and want to plant a vegetable garden, you may be wondering exactly what you can plant and when. This guide can help you determine your options based on the seasons and your USDA hardiness zone., Toggle navigation. Flora of North America. Revisions Since Print; Actions. View source; History; Page; Discussion; Tools, 6 พ.ย. 2560 ... Download this stock vector: North America flora and fauna map, flat elements. Animals, birds and sea life big set., This page was last edited on 28 July 2020, at 12:59. Content is available under unless otherwise noted.; Privacy policy; About FNA; Disclaimers; Report an issue, 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 )., Treatment appears in FNA Volume 19. Treatment on page 184. Mentioned on page 183. Annuals, 20-100 cm. Stems usually 1, erect, ± openly branched distally, loosely tomentose. Leaves ± loosely gray-tomentose; basal leaf blades linear-lanceolate, 3-10 cm, margins entire or with remote linear lobes, apices acute; cauline linear, usually not ..., Common names: American hazel or hazelnut noisetier d'Amérique. Treatment appears in FNA Volume 3. Shrubs, open, upright, rounded, to 3 (-5) m. Bark light gray, smooth. Branches ascending; twigs pubescent, covered with bristly glandular-hairs. Winter buds containing inflorescences broadly ovoid, 3-4 × 3-4 mm, apex obtuse to rounded., Revision of the North American species of the genus Juncus, with a description of new or imperfectly known species. Trans. Acad. Sci. St. Louis. 2(2, 3): 424--498. Hermann, F. J. 1975. Manual of the Rushes (Juncus spp.) of the Rocky Mountains and Colorado Basin. ... Flora of North America Association + Illustrator. Yevonn Wilson-Ramsey ..., A morphologically based phylogenetic analysis of North American asters was done by Jones and D. A. Young (1983). They identified a group similar to the current Symphyotrichum, but did not segregate it from Aster. G. L. Nesom (1994b, 1997) segregated Symphyotrichum from Aster in a strict sense on a morphologic basis. , Roots absent. Fronds submersed (except when flowering or fruiting), proximal part near surface, 1 or 2-20 or more, coherent, linear, ribbon, sabre or tongue-shaped, or ovate, flat, longer than 2 mm, margins entire; air spaces in tissue; pouch 1, terminal, at base from which daughter fronds (no flowers) originate, triangular, lower wall of pouch with tract of elongated cells forming ..., Aug 15, 2023 · 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. , 1. Annuals or biennials (perennials; taproots usually shallow) > 2. 1. Perennials (taproots and caudices becoming woody) > 11. 2. Stems branched (dichotomously, heads sessile in axils); phyllaries lanceolate (inner becoming indurate, often enclosing and partially fused to cypselae) Crepis zacintha., A thousand or so years later, nearly one third of the habitable world in the Americas had been discovered and populated by these first Americans. Previously, the flora and fauna of North America had an evolutionary and ecological history completely apart from the influence of humans. But that was all about to change., The Native Americans used this plant mainly for treating bladder and urinary tract infections. #23. Devil's Claw. Although the name would suggest a poisonous plant, the Native Americans used it to heal various conditions, from treating fever to soothing skin conditions, improving digestion, and treating arthritis., Iva frutescens. Sp. Pl. 2: 989. 1753. Treatment appears in FNA Volume 21. Treatment on page 26. Subshrubs or shrubs, 50-350 cm. Stems erect. Leaves: petioles 5-10+ mm; blades ovate or elliptic to lanceolate, 30-60 (-120+) × 5-30 (-40) mm, margins usually toothed, faces closely scabrellous, glanddotted. Heads in ± racemiform arrays., 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 floras published over the last three centuries., 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 …, Flora of North America North of Mexico. 19+ vols. New York and Oxford. Vol. 13. To cite a particular part of a volume provisionally published, cite as: Author, Date, Title (e.g. Genus name, Flora of North America North of Mexico, Provisional Publication), Publishing institution, Date of Publication, URL, Date actually viewed., The first complete treatment of the sedges of North America in more than half a century, this volume tackles the notoriously difficult to identify Cyperaceae with illustrations of all species in the group, emphasizing its great ecological importance. With extensive information on the more than 460 species of Carex, this third volume out of five covering the monocots of North America also ..., Halesia J. Ellis ex Linnaeus, Syst. Nat. ed. 10. 2: 1041, 1044, 1369. 1759. Silverbell, snowdrop tree [For Stephen Hales, 1677-1761, English botanist] Shrubs or trees: pith chambered [continuous]; winter buds with scales; fertile shoots of current growing season without fully developed leaves (rarely fully developed in H. diptera )., This category includes the native flora of Mexico, in North America. Taxa of the lowest rank are always included. ... Pages in category "Flora of Mexico" The following 200 pages are in this category, out of approximately 1,476 total. This list may not reflect recent changes., Toggle navigation. Flora of North America. Revisions Since Print; Actions. View source; History; Page; Discussion; Tools, The erect habit, bright green and usually glabrous foliage, and dark involucres of Mirabilis melanotricha are distinctive in combination. Once collected and pressed, M. melanotricha becomes yet another "difficult" Mirabilis. In 1911, P. C. Standley noted that this species (as Allionia melanotricha) was one of the most variable in the genus ..., 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., Solidago nemoralis is a species of flowering plant in the family Asteraceae.It is native to North America, where it is widely found in Canada (every province except Newfoundland and Labrador) and the United States (all states wholly or partially east of the Rocky Mountains). Its common names include gray goldenrod, gray-stem goldenrod, old-field …, Helianthus (/ ˌ h iː l i ˈ æ n θ ə s /) is a genus comprising about 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. Except for three South American species, the species of Helianthus are native to North America and Central America.The best-known species is the common sunflower …, 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 ...