The Oregon Ash (Fraxinus latifolia), is a member of the ash genus Fraxinus, native to western regions of its namesake, the state of Oregon in the United States of America. Scientific classification or biological classification is how biologists group and categorize extinct and living 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 Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. ... Orders See text. ... Families See text The Order Lamiales is a taxon in the asterid group of dicotyledonous flowering plants. ... Genera Abeliophyllum- Chionanthus- Fringetree Comoranthus- Dimetra- Fontanesia- Forestieria- Swamp-privet Forsythia- Forsythia Fraxinus- Ash Haenianthus- Hesperelaea- Jasminum- Jasmine Ligustrum- Privet Menodora- Myxopyrum- Nestegis- Noronhia- Notelaea- Nyctanthes- Olea- Olive Osmanthus- Osmanthus Phillyrea- Mock-privet Picconia- Priogymnanthus- Schrebera- Syringa- Lilac Oleaceae, the olive family, is a plant family containing 24 extant genera... Species See text European Ash in flower Narrow-leafed Ash (Fraxinus angustifolia) shoot with leaves Closeup of European Ash seeds 19th century illustration of Manna Ash (Fraxinus ornus) An ash can be any of four different tree genera from four very distinct families (see end of page for disambiguation), but... In biology, binomial nomenclature is the formal method of naming species. ... George Bentham George Bentham (September 22, 1800 – September 10, 1884) was an English botanist, perhaps the greatest systematic botanist of the 19th century. ... Species See text European Ash in flower Narrow-leafed Ash (Fraxinus angustifolia) shoot with leaves Closeup of European Ash seeds 19th century illustration of Manna Ash (Fraxinus ornus) An ash can be any of four different tree genera from four very distinct families (see end of page for disambiguation), but... Official language(s) None Capital Salem Largest city Portland Area  Ranked 9th  - Total 98,466 sq mi (255,026 km²)  - Width 260 miles (420 km)  - Length 360 miles (580 km)  - % water 2. ...

The Oregon Ash can grow to 25 meters in height, with a trunk diameter of 30-80cm. The leaves are pinnate, 12-33 cm long, with 5-9 leaflets, each leaflet ovate, 6-12 cm long and 3-4 cm broad, and often show signs of disease and brown rot, even on otherwise healthy plants. The fruit is a samara, 3-5 cm long including the wing. The leaves of a Beech tree A leaf with laminar structure and pinnate venation In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... Fruit stall in Barcelona, Spain. ... Maple samara or key A samara is a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. ...

The Oregon Ash can be found on the west side of the Cascade Range from southwestern British Columbia to central California. The tree prefers damp, loose soils, and grows from sea level to 900 meters in elevation, up to 1700 m in the south of the range in California. In central southern California, it intergrades with the Velvet Ash F. velutina of southern California east into Arizona. Mount Adams in Washington The Cascade Range is a mountainous region famous for its chain of tall volcanoes called the High Cascades that run north-south along the west coast of North America from British Columbia through Washington and Oregon to the Shasta Cascade area of northern California. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English de facto (none stated in law) Flower Pacific dogwood Tree Western Redcedar Bird Stellers Jay Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seat  - Senate seats 36 6 Area... This article is becoming very long. ... Official language(s) English Capital Phoenix Largest city Phoenix Area  Ranked 6th  - Total 113,998 sq mi (295,254 km²)  - Width 310 miles (500 km)  - Length 400 miles (645 km)  - % water 0. ...

References

• Jepson Flora Project: Fraxinus latifolia
• Plants of British Columbia: Fraxinus latifolia