It is one of the largest of some 40 species of Populus and is the tallest, fastest-growing hardwood in the western United States. Black Cottonwood (Populus Nigra) The black cottonwood is a tall tree that produces low-grade timber More commonly found in Europe and Asia, the black cottonwood also grows on the western coast of the US. endobj The bark of the tree is grayish brown which appears blackish, and so the name the black poplar tree. Named after 19th century American explorer John C. Fremont, it is similar to the Eastern Cottonwood, differing mainly in the leaves having fewer, larger serrations on the leaf edge and small … H ere's one way to determine whether the narrower leaf pictured on the preceding page is from a narrow leaf (angustifolia) or a black cottonwood. 3 0 obj Black cottonwood is a hardy, short lived tree that can grow up to 50 meters tall; however they usually only reach 25 meters. ©J.S. When the tree is young, the bark, branches, and twigs are smooth. These scentglands secrete a milky, foul-smelling fluid that repels predators whenthe beetle is disturbed, and can be retracted back into the larva-s bodywhen … 7–12 cm. <> <> The Cottonwood Leaf (Populus Deltoides) Peterson. ҈‣�l��* �Vܑ�9Z׃��I������K�Ū endstream 2020, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 25, 2020. Mature larvae are blackish with two white spots on each side. Length. 2 0 obj endobj 10 0 obj No warty glands at the base. and the success of natural cottonwood regeneration along riparian areas. Bud Size - Medium, 1/2 to 3/4 inch long. Normally, their trunks achieve up to 1.5 m in diameter, but some unusual individual trees in France have grown old enough to have much larger trunks – more than 3 meters DBH. The leaf veins and shoots are finely covered with soft hair. Common species. Colour. ���UxV&��o���x#��:_��\u�&�͚Ɱs����Y=��!7�"�#t���_я��{��#��I��͏uˤ��Q�nj[�cgc�� ����T�C��w�ա��y���R`JE"k��t`��ݮ�ƎՄSv8�2���%��A�2̨ҙ��� ������>[������l�'%�� Cottonwood trees grow throughout the south-west and into the Rocky Mountains. USDA NRCS National Plant Data Center (NPDC). It is a large tree, growing to a height of 30 to 50 m (98 to 164 ft) and a trunk diameter over 2 m (6.6 ft), which makes it the largest poplar species in the Americas. These tall straight trees are found all the way from Alaska, through British Columbia, to Oregon, and California. Technically, the cottonwood is considered a subspecies of balsam poplar, and like its relative, it prefers low lying moist habitats, often along river courses. endobj They have lustrous, bright green foliage in summer that changes to brilliant yellow in fall. 11 0 obj Last measured in April, 2008, this black cottonwood was found to be standing at 155 ft (47 m) tall, 29 ft (8.8 m) around, with 527 points. Description. Base usually rounded, sometimes wedge-shaped or slightly heart-shaped. A cottonwood in Willamette Mission State Park near Salem, Oregon, holds the national and world records. The Cottonwood Leaf Beetle is yellow and black. <> <> The yellow eggs are oval shaped. As the tree ages, the bark becomes deeply furrowed with cracks. Complicating this convention, however, is the poorly explored phenomenon that some microbes are endophytes in some plants but pathogens in others. <> Description. Leaf: juvenile, adult, late-season leaves may differ in size, shape, hairiness; generally glabrous; blade 3--11 cm, elliptic to deltate, veins pinnate or +- palmate, tip generally elongate. populus nigra, the black poplar, is a species of cottonwood poplar leaf - black cottonwood stock illustrations black cottonwood trees - black cottonwood stock pictures, royalty-free photos & images shown are newly emerged black cottonwood leaves near the south fork of the kings river in kings canyon national park, california. <> Citation for the whole project: Jepson Flora Project (eds.) <> The largest living tree in North Dakota is 110 feet tall with a canopy spread of 94 feet. ��@Yw>��}V~�>+�����8��IHc���4n˫���:c��ǡ�y�[ P��\�@�9Y9�05�WW9b\�h�47O��U�Rp�mr�տ�U�r��"��{ 16 0 obj It is the largest of the poplar species in the Rockies, often reaching heights of 40 m (130 ft). ����+�ŷ�H�*�f#�3�K�;��-Ȁ�C�0�����*w�kV�@�3q�}�����n�ΰT-���\3/���(����:,O�h��B��Ȼ@�ʵ��ԕ����eO�X�8i�o�����k߸�N��otf\��L'� ��bCq��9����B~I����r�r���f�@�!�zٯ=�A�$Cڷ~�����ɽ��Cـ]�� ��z�����ø�4$*|�L�6C ��M5U <> endobj Personally, I find that certain kinds of trees have a special kind of majesty. Second, the angustifolia leaf is the same shade of green on both sides. endobj Black cottonwood is a medium- to large-sized (exceptionally over 60 m tall), deciduous broad-leaved tree, at maturity with a narrow, sometimes columnar crown, with a few thick ascending branches and dark gray, irregularly shaped furrows. trichocarpa) is a native tree that grows in northern, southern and central California.It is fast growing and moderately long-lived. • Often occurs with black cottonwood (Populus trichocarpa) and yellow willow. Black cottonwood is a medium- to large-sized (exceptionally over 60 m tall), deciduous broad-leaved tree, at maturity with a narrow, sometimes columnar crown, with a few thick ascending branches and dark gray, irregularly shaped The black poplar is a medium- to large-sized deciduous tree, reaching 20–30 m, and rarely 40 m tall. The bark is rough and dark-colored, thus “black cottonwood”. Studying leaf shape and the arrangement of leaves on a stem is the most common way of identifying a … endobj The dangling leaves clatter in the wind. Black Cottonwood Leaf. First, the leafstalk, also called the petiole (Latin for "leafstalk"), of an angustifolia leaf is less than one-third the length of the midrib. Cottonwood, several fast-growing trees of North America, members of the genus Populus, in the family Salicaceae, with triangular, toothed leaves and cottony seeds. It has a broad, open crown and stout, widely spread branches. https://www.fs.fed.us/database/feis/plants/tree/popbalt/all.html The side edges of the wings are orange. Adult cottonwood leaf beetles, Chrysomela scripta Fabricius (Coleoptera:Chrysomelidae), are approximately 1/4" long with a black head and thorax.The thorax has reddish margins. June 5, 2003. The Fremont Cottonwood, also known as the Western Cottonwood or the Rio Grande Cottonwood, Populus fremontii, occurs in California east to Utah and Arizona and south into northwest Mexico. Home / Open Edition Prints / Black Cottonwood Leaf. <> x��W�n�8}7��X���wE�&�Y��nk`�}�ʮk4������ɢl�P�ئ.�9s�̐$�����o�$��$W�kd=���)+�I���H�t��eo�W�ɗW� y���,\-���߀�fJ�ŗ�H�@GsެdF���t��Ǐ&�u����t�)��˨J�ot&��(�IQ�l���o�d�ė���d�K��3%�o��}:y�� � �56�Sf���S2;eDD�h&D��I$���pƑ|��&��0��;�u �~��" �����)��l��@����hL��q��~�"A,KeL9�qfu�Tʺ��9�����W�;��t��GZ�T-��� n���2YU��T��W���08� Each yellow elytron (wing covering) has two thick black stripes on it with black dot above and below. 17 0 obj Eastern cottonwood (P. deltoides), nearly 30 metres (100 feet) tall, has thick glossy leaves.A hybrid between this and Eurasian black poplar (P. nigra) is P. canadensis. Refe… endobj 8 0 obj About Black Cottonwood (Populus trichocarpa) 16 Nurseries Carry This Plant Add to My Plant List; Black Cottonwood (Populus balsamifera ssp. Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA. %���� Lower surface mostly hairless. Art has carefully chosen a select group of images for his Open Edition Fine Art Collection. Inflorescence: catkin pendent, 3--8 cm; bract cut into narrow segments; flowers sessile; nectary a cup- or saucer-like disk. endobj %PDF-1.5 7 0 obj Broadly ovate, tip long drawn-out. Distinctive glands are endobj long; look for … <> Cottonwood (Poplar) The cottonwood—also known as the poplar—is a tall tree with a spreading crown, named for its cotton-like seeds. (Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence). I have very strong memories of cottonwood trees because I have come across them a lot in my explorations of Utah and the Rockies. The leaf blades are oval to heart-shaped, with a point on the end; the petioles are 1-2 in. Young larvae are at first black, but become lightbrown with four prominent white scent glands along the sides. The sides of the thorax are also orange, each with a single black dot in the center. stream More photos of Populus trichocarpa in CalPhotos. The leaves may be triangular or ovate in shape, with a fine serration on the borders. I should certainly note that these effects are better documented and empirically experienced in other members of the Willow family Salicaceae, like Black Poplar (Populus balsamifera), which also goes by the name of Black Cottonwood. 6 0 obj United States, CA, Berkeley, Regional Parks Botanic Garden at Tilden. endobj 14 0 obj stream March 22, 2009 Apex of leaf has a curving point, hence the name whiplash. trichocarpa, the black cottonwood western balsam-poplar or California poplar, is a deciduous broadleaf tree species native to western North America. Very shiny. Sherwood, Oregon, USA. Cottonwood is a well-known, common tree along rivers and streams throughout the West.Cultivation of hybrid poplars (Populus trichocarpa x. P. deltoides) can produce very high yields of fiber or fuel in 2-to-8-year rotations. The elytra (wing covers) are yellow withbroken black stripes. Populus balsamifera ssp. The white poplar (P. alba)—also known as silver poplar for its leaves, which have white felted undersides, and as maple leaf poplar for the leaves’ lobed margins—is widely spreading or columnar in form, reaching 30 metres (100 feet) in height. 1 0 obj Leaf Type and Shape - Simple leaves, triangular-cordate, <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Cottonwoods (Populus deltoids) are massive shade trees that grow naturally throughout the United States. The Fremont cottonwood is a tree that grows in riparian areas near streams, rivers, and wetlands in the American Southwest. Indeed, Cottonwood is a sign of relieving water nearby, water to come, or a way of moving water out of the body. Description. Description. Many … 13 0 obj It grows in an upright form to a height of 100 feet, with active growth during the spring and summer. English: Populus trichocarpa male catkin and leaf buds. Here are some fun facts about these magnificent trees. endobj It is used for timber, and is notable as a model organism in plant biology. Duplicates counted once; synonyms included. Description. Form. Bud Color - Chestnut-brown, sticky, conical. Citation for this treatment: John O. Sawyer, Jr. 2012, Populus trichocarpa, in Jepson Flora Project (eds.) McSush/Wikimedia Commons/CC BY 3.0. endobj ��X���!m�/�����5���n�T.��Ӯd���0�^XŤe�}��A�>�*;L��",> �x�@ΕG Adult beetles are 6mm long and light yellow with black stripes on their wing covers. <>>> 12 0 obj Upper surface dark green. Read on for more cottonwood tree facts. endobj Black cottonwood is a Pacific Northwest native deciduous tree which can eventually grow to a height of 150’ with a width of 40’. • Summer Key – Long pointed leaf, same color on both sides, fine-toothed margin. <> Leaves and Buds Bud Arrangement - Alternate. This tree is native to Europe. Leaves: The leaves of a black cottonwood tree grow alternately in a pale green shade, with a leaf size of 2-2.5 inches in length and width. endobj It is normally fairly short-lived, but some trees may live up to 400 years. Autumn color, Icicle Creek, Washington, USA. x��}WK��/����1��b�����`FIrL�1 ��(�����T�b�(*FD��}�K��=3���n�U�5��tW=�k�gW���AB���O��>���ލ�Y�2�(>��YW�p�p����������ׯ}}}߾}��v�Y����knb�����wѭpqtT��3�Ͽp挩ӂ�F|;9�?��}��a��ʨ?~~�g�����WP���p�C� (����r;y��ׯ�����+�[Y�Aq����G �Ύ&>��Z����o''A+��ݻwE~+���\�V�8)bϞk��"O�v���MW�9��vR �\S3�EG/�3�Q�2�s��=X�����H��c�*���=���)�Z!��1�. The limbs bear alternate leaves which are simple, broadly ovate and 3”-5” long. Black Cottonwoods are one of the most massive broad-leafed trees on the continent. The diverse poplar family includes the quaking aspen, which boasts the widest range of any North American tree, and the Plains cottonwood, which was the only tree many early settlers met as they forged westward through America's prairies. Faunal Associations: Swamp Cottonwood is a host tree to many of the same insects that feed on other Populus spp. You can recognize them at a distance by their broad, white trunks. They have clusters of erect branches which often appear as a single column, and look absolutely beautiful. endobj <> Two well-known poplar species of Eurasia are the white and black poplars. Leaves of mature trees can display a light rust color on the side facing the ground. The tree, a member of the Salicaceae (willow family) can reach to 100 feet tall, and achieve a 6 foot trunk diameter. endobj Common in the region from 2,000 to 6,000 ft (below 6,500). Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=39463, accessed on December 25, 2020. <> 9 0 obj 15 0 obj 5 0 obj They are printed on EPSON Premium Photo Luster or Metallic Luster paper using archival EPSON Ultrachrome inks. It is considered the largest of the 3 balsam poplars native to Canada, and the largest broad-leaf tree native to British Columbia. Black cottonwood is a large deciduous tree belonging to the willow family (Salicaceae). These species include the larvae of Plectrodera scalator (Cottonwood Borer) and other wood-boring beetles, Chrysomela scripta (Cottonwood Leaf Beetle), various aphids, and the caterpillars of many moths (see Insect Table and Moth Table). <> Blue line denotes eFlora flowering time (fruiting time in some monocot genera). The base of the leaves can be either wedge or heart shaped. The conventional definition of endophytes is that they do not cause disease, whereas pathogens do. <> They are about 12mm long. 4 0 obj State Park near Salem, Oregon, and rarely 40 m tall larvae are at first black, but lightbrown... On the side facing the ground ft ( below 6,500 ) taxon in CA have come across them a in. An upright form to a height of 100 feet, with active growth the. Of Populus and is notable as a single column, and California (. Or ovate in shape, with active growth during the spring and summer leaf the... To heart-shaped, with a single black dot above and below throughout the United.... 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Cottonwoods are one of the thorax are also orange, each with a single black dot in the western States... For his Open Edition Fine art Collection, is the same shade of green on both sides Cottonwoods ( deltoids! Broadly ovate and 3 ” -5 ” long black cottonwood leaf description with black cottonwood Populus! Long pointed leaf, same color on the end ; the petioles are 1-2 in lustrous, green...