Ambrosia eriocentra is a North American species of ragweed known by the common names woolly bursage and woollyfruit burr ragweed.[4]
Woolly bursage
Woolly bursage on a portion of periodically exposed, dry river bed (Red Rock Canyon in the Spring Mountains of southern Nevada, elevation about 1300 m).
It grows in the Mojave's plains and mountain ridges up to 1,700 metres (5,600 ft) in elevation.[1][5]
Descriptionedit
Ambrosia eriocentra is a rounded shrub reaching over 1.5 metres (4.9 ft) in height. The stems are brownish gray in color, with young twigs coated in light woolly fibers and older branches bare. Leaves are lance-shaped and up to 9 centimeters long, not counting the winged petioles. The leaves have rolled lobed or toothed edges.[1]
^In: Journal of the Arnold Arboretum 45(4): 423. 1964. "Name - Ambrosia eriocentra (A.Gray) W.W.Payne". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved March 25, 2010. Basionym: Franseria eriocentra A.Gray; Published in The Proceedings of the American Academy of Arts and Sciences 7(2): 355. 1868.
^The Plant List Ambrosia eriocentra (A.Gray) W.W.Payne
^ abCalflora taxon report, University of California, Ambrosia eriocentra (A. Gray) Payne woolly bur sage, wooly bursage
^Biota of North America Program 2013 county distribution map
^Flora of North America, Vol. 21 Page 13 Ambrosia eriocentra (A. Gray) W. W. Payne, J. Arnold Arbor. 45: 423. 1964.
^Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 423-424
External linksedit
Wikimedia Commons has media related to Ambrosia eriocentra.
Wikispecies has information related to Ambrosia eriocentra.
Jepson Manual eFlora (TJM2) treatment of Ambrosia eriocentra
UC Photos gallery: Ambrosia eriocentra
January 01, 1970
ambrosia, eriocentra, north, american, species, ragweed, known, common, names, woolly, bursage, woollyfruit, burr, ragweed, woolly, bursage, woolly, bursage, portion, periodically, exposed, river, rock, canyon, spring, mountains, southern, nevada, elevation, a. Ambrosia eriocentra is a North American species of ragweed known by the common names woolly bursage and woollyfruit burr ragweed 4 Woolly bursage Woolly bursage on a portion of periodically exposed dry river bed Red Rock Canyon in the Spring Mountains of southern Nevada elevation about 1300 m Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Asterids Order Asterales Family Asteraceae Genus Ambrosia Species A eriocentra Binomial name Ambrosia eriocentra A Gray W W Payne 1 2 Synonyms 3 Franseria eriocentra A Gray Gaertneria eriocentra A Gray Kuntze Contents 1 Distribution 2 Description 3 References 4 External linksDistribution editThe plant is native to the Mojave Desert in the southwestern United States within southern California southern Nevada northwestern Arizona and southwestern Utah 4 It grows in the Mojave s plains and mountain ridges up to 1 700 metres 5 600 ft in elevation 1 5 Description editAmbrosia eriocentra is a rounded shrub reaching over 1 5 metres 4 9 ft in height The stems are brownish gray in color with young twigs coated in light woolly fibers and older branches bare Leaves are lance shaped and up to 9 centimeters long not counting the winged petioles The leaves have rolled lobed or toothed edges 1 As in other ragweeds the inflorescence has a few staminate male flower heads next to several single flowered pistillate heads The bloom period is April to June 1 The fruit is a green burr with long silky white hairs and several hair tufted sharp spines The burr is around a centimeter long 1 6 7 References edit a b c d e Jepson eFlora Ambrosia eriocentra In Journal of the Arnold Arboretum 45 4 423 1964 Name Ambrosia eriocentra A Gray W W Payne Tropicos Saint Louis Missouri Missouri Botanical Garden Retrieved March 25 2010 Basionym Franseria eriocentra A Gray Published in The Proceedings of the American Academy of Arts and Sciences 7 2 355 1868 The Plant List Ambrosia eriocentra A Gray W W Payne a b Calflora taxon report University of California Ambrosia eriocentra A Gray Payne woolly bur sage wooly bursage Biota of North America Program 2013 county distribution map Flora of North America Vol 21 Page 13 Ambrosia eriocentra A Gray W W Payne J Arnold Arbor 45 423 1964 Payne Willard William 1964 Journal of the Arnold Arboretum 45 4 423 424External links edit nbsp Wikimedia Commons has media related to Ambrosia eriocentra nbsp Wikispecies has information related to Ambrosia eriocentra Calflora Database Ambrosia eriocentra Woolly bur sage Wooly bursage Jepson Manual eFlora TJM2 treatment of Ambrosia eriocentra UC Photos gallery Ambrosia eriocentra Retrieved from https en wikipedia org w index php title Ambrosia eriocentra amp oldid 1094743183, wikipedia, wiki, book, books, library,
