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Ben Ferguson Hackberry Hackberry, Celtis occidentalis L. , or common hackberry is a very durable plant but is a threatened species in New Hampshire. Classification: Kingdom – Plantae (Plants) Subkingdom – Tracheobionta (Vascular plants) Super division – Spermatophyta (Seed plants) Division – Magnoliophyta (Flowering plants) Class – Magnoliopside (Dicotyledons) Subclass – Hamamelididae Order – Urticales Family – Ulmaceae (Elm family) Genus – Celtis L. (Hackberry) Species - Celtis occidentalis L. (Common Hackberry) Shape, Form, Type The hackberry tree is an ornamental tree fruit bearing tree and reaches from12 meters to 18 meters. The branches tend to droop which gives the tree a cylindrical shape. Figure 1 Bark The bark of the hackberry tree is grayish in color and are warty in appearance. Figure 2 Twig The twigs of the hackberry tree have a zigzag appearance to them. Figure 3 Leaf The leaves of the hackberry tree are alternate, simple, sharply toothed, and 7 to 12 cm long. They are dark green with pale green beneath. Figure 4 Bud Figure 5 The buds are small, triangular in shape and tan in color. Flower The flowers of the hackberry tree are small and greenishyellow. They emerge in April and May along with the leaves. Figure 6 Fruit Figure 7 The fruit of the hackberry tree are small greenish drupes that when mature change to dark red black. They mature in September and October. Habitat and Range Hackberry is native to the United States and occurs from Maine and also Quebec. West to N. Dakota, Wyoming and Colorado. South to Texas and Georgia. Figure 8 Uses Hackberry trees are used as ornamental trees in urban areas because it is very tolerant. It is also used as firewood and sometimes used for furniture. Hackberry trees are also used in erosion control. It’s deep root system helps prevent soil erosion and it also helps prevent wind erosion. References Images http://www.google.com/imgres?imgurl=http://www.tree-pictures.com/netleaf-hackberrytree.jpg&imgrefurl=http://www.treepictures.com/hackberry_tree_pics.html&usg=__Tx0_p44hVOJtAKMP3rOKvhS_jjM=&h =448&w=336&sz=73&hl=en&start=7&itbs=1&tbnid=HuTVakBWnuwUNM:&tbnh=127&t bnw=95&prev=/images%3Fq%3Dhackberry%2Btree%26hl%3Den%26gbv%3D2%26tb s%3Disch:1 Figure 1 Retrieved 6/22/10 http://www.discoverlife.org/IM/I_SB/0309/320/Celtis_occidentalis,Bark,I_SB30990.jpg Figure 2 Retrieved 6/22/10 http://www.cas .vanderbilt.edu/bioimages/c/wceoco2tw30984.JPG Figure 3 Retrieved 6/22/10 http://www.cas.vanderbilt.edu/bioimages/biohires/c/hceoco2lf35448.JPG Figure 4 Retrieved 6/22/10 http://www.uwgb.edu/biodiversity/herbarium/trees/celocc_bud01.jpg Figure 5 Retrieved 6/22/10 http://www.discoverlife.org/nh/tx/Plantae/Dicotyledoneae/Ulmaceae/Celtis/occidentalis/i mages/Closeflower.jpg Figure 6 Retrieved 6/22/10 http://www.cas.vanderbilt.edu/bioimages/biohires/c/hceoco2frdevel35446.JPG Figure 7 Retrieved 6/22/10 http://plants.usda.gov/java/profile?symbol=CEOC Figure 8 Retrieved 6/22/10 References Cont. Information http://plants.usda.gov/java/profile?symbol=CEOC Retrieved 6/22/10 http://plants.usda.gov/plantguide/pdf/pg_ceoc.pdf Retrieved 6/22/10 http://www.cnr.vt.edu/dendro/dendrology/syllabus/f actsheet.cfm?ID=26 Retrieved 6/22/10