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Sorbus americana, also known as Rowan, American Mountain Ash, or Pyrus americana, is a small tree of the eastern United States. Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ...
Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta—liverworts Anthocerotophyta—hornworts Bryophyta—mosses Vascular plants (tracheophytes) †Rhyniophyta—rhyniophytes †Zosterophyllophyta—zosterophylls Lycopodiophyta—clubmosses †Trimerophytophyta—trimerophytes Pteridophyta—ferns and horsetails Seed plants (spermatophytes) †Pteridospermatophyta—seed ferns Pinophyta—conifers Cycadophyta—cycads Ginkgophyta—ginkgo Gnetophyta—gnetae Magnoliophyta—flowering plants...
Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. ...
Magnoliopsida is the botanical name for a class: this name is formed by replacing the termination -aceae in the name Magnoliaceae by the termination -opsida (Art 16 of the ICBN). ...
Families Barbeyaceae Cannabaceae (hemp family) Dirachmaceae Elaeagnaceae Moraceae (mulberry family) Rosaceae (rose family) Rhamnaceae (buckthorn family) Ulmaceae (elm family) Urticaceae (nettle family) For the Philippine municipality, see Rosales, Pangasinan. ...
Subfamilies Rosoideae Spiraeoideae Maloideae Amygdaloideae or Prunoideae The Rosaceae or rose family is a large family of plants, with about 3,000-4,000 species in 100-120 genera. ...
Genera Amelanchier - serviceberry, juneberry Aronia - chokeberry Chaenomeles - Japanese quince Cotoneaster - cotoneaster Crataegus - hawthorn Cydonia - quince Eriobotrya - loquat Eriolobus (Malus pro parte) Heteromeles - Toyon Malus - apple, crabapple Mespilus - medlar Osteomeles Photinia Pyracantha - firethorn Pyrus - pear Rhaphiolepis - Indian hawthorn Sorbus - rowan, whitebeam, service tree Stranvaesia - (Photinia pro parte) The Maloideae, or the...
Subgenera Sorbus Aria Micromeles Cormus Torminaria Chamaemespilus The genus Sorbus is a genus of about 100-200 species of trees and shrubs in the subfamily Maloideae of the Rose family Rosaceae. ...
Subgenera Sorbus Aria Micromeles Cormus Torminaria Chamaemespilus The genus Sorbus is a genus of about 100-200 species of trees and shrubs in the subfamily Maloideae of the Rose family Rosaceae. ...
In biology, binomial nomenclature is the formal system of naming species. ...
The coniferous Coast Redwood, the tallest tree species on earth. ...
Description Usually a shrub in the United States, it attains its largest shape as a small tree on the northern shores of Lake Huron and Lake Superior.[1] Ipperwash Beach, Lake Huron. ...
Lake Superior, bounded by Ontario, Canada and Minnesota, USA, to the north and Wisconsin and Michigan, USA, to the south, is the largest of North Americas Great Lakes. ...
The general appearance greatly resembles the European Sorbus aucuparia, but in form they differ considerably nor does americana ever become so handsome a tree; the Mountain Ash which is usually planted ornamentally is the European species. The fruit of americana has blossoms and fruit smaller than Sorbus sambucifolia, a tree of more northern range.[1] Binomial name Sorbus aucuparia L. Sorbus aucuparia, also known as Rowan or Mountain Ash, is a small to medium tree, growing up to 20m but often smaller especially in exposed locations. ...
- Bark: Light gray, smooth, surface scaly. Branchlets downy at first, later become smooth, brown tinged with red, lenticular, finally they become darker and the papery outer layer becomes easily separable.
- Wood: Pale brown; light, soft, close-grained but weak. Sp. gr., 0.5451; weight of cu. ft., 33.97 lbs.
- Winter buds: Dark red, acute, one-fourth to three-quarters of an inch long. Inner scales are very tomentose and enlarge with the growing shoot.
- Leaves: Alternate, compound, unequaly pinnate, six to ten inches long, with slender, grooved, dark green or red petiole. Leaflets thirteeen to seventeen, lanceolate or long oval, two to three inches long, one-half to two-thirds broad, unequally wedge-shaped or rounded at base, serrate, acuminate, sessile, the terminal one sometimes borne on a stalk half an inch long, feather-veined, midrib prominent beneath, grooved above. They come out of the bud downy, conduplicate; when full grown are smooth, dark yellow green above and paler beneath. In autumn they turn a clear yellow. Stipules leaf-like, caducous.
- Flowers: May, June, after the leaves are full grown. Perfect, white, one-eighth of an inch across, borne in flat compound cymes three or four inches across. Bracts and bractlets acute, minute, caducous.
- Calyx: Urn-shaped, hairy, five-lobed; lobes, short, acute, imbricate in bud.
- Corolla: Petals five, creamy white, orbicular, contracted into short claws, inserted on calyx, imbricate in bud.
- Stamens: Twenty to thirty, inserted on calyx tube; filaments thread-like; anthers introrse, two-celled; cells opening longitudinally.
- Pistil: Two to three carpels inserted in the bottom of the calyx tube and united into an inferior ovary. Styles two to three; stigmas capitate; ovules two in each cell.
- Fruit: Berry-like pome, globular, one-quarter of an inch across, bright red, borne in cymous clusters. Ripens in October and remains on the tree all winter. Flesh thin and sour, charged with malic acid; seeds light brown, oblong, compressed; cotyledons fleshy.[1]
Distribution Loves the north and climbs the high mountain ranges of Virginia and North Carolina, but does not cross the Rockies. This article contains a trivia section. ...
Official language(s) English Capital Raleigh Largest city Charlotte Area Ranked 28th - Total 53,865 sq mi (139,509 km²) - Width 150 miles (240 km) - Length 560[1] miles (901 km) - % water 9. ...
Ecological aspects The berries look as if they might be good to eat, but it is evident that the birds do not find them so. They are sour, bitter, and of a disagreeable flavor, and go untouched by birds until no other fruit is within reach.[1]
Cultivation Prefers a rich moist soil and the borders of swamps, but will flourish on rocky hillsides.
References - ^ a b c d Keeler, Harriet L. (1900). Our Native Trees and How to Identify Them. New York: Charles Scriber's Sons, 136-140.
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