Geum geniculatum

• Overview
• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Threatened

Interesting Facts

Common Names

Description

Family Rosaceae

Trees , shrubs , or herbs, deciduous or evergreen . Stems erect , scandent , arching , prostrate , or creeping , armed or unarmed . Buds usually with several exposed scales , sometimes with only 2. Leaves alternate, rarely opposite, simple or compound ; stipules paired , free or adnate to petiole , rarely absent, persistent or deciduous; petiole usually 2-glandular apically; leaf blade often serrate at margin , rarely entire. Inflorescences various, from single flowers to umbellate , corymbose , racemose or cymose-paniculate. Flowers usually actinomorphic , bisexual , rarely unisexual and then plants dioecious. Hypanthium (formed from basal parts of sepals, petals, and stamens) free from or adnate to ovary, short or elongate . Sepals usually 5, rarely fewer or more, imbricate; epicalyx segments sometimes also present. Petals as many as sepals, inserted below margin of disk, free, imbricate, sometimes absent. Disk lining hypanthium, usually entire, rarely lobed . Stamens usually numerous , rarely few, always in a complete ring at margin of or above disk; filaments usually free, very rarely connate ; anthers small, didymous , rarely elongate, 2-locular. Carpels 1 to many, free, or ± connate and then adnate to inner surface of cupular receptacle; ovary inferior, semi-inferior, or superior; ovules usually 2 in each carpel, rarely 1 or several, anatropous , superposed . Styles as many as carpels, terminal , lateral , or basal, free or sometimes connate. Fruit a follicle, pome, achene, or drupe, rarely a capsule, naked or enclosed in persistent hypanthium and sometimes also by sepals. Seeds erect or pendulous, sometimes winged , usually exalbuminous , very rarely with thin endosperm; cotyledons mostly fleshy and convex abaxially, rarely folded or convolute.

Between 95 and 125 genera and 2825-3500 species: cosmopolitan , mostly in N temperate zone; 55 genera (two endemic) and 950 species (546 endemic) in China.

Many plants of this family are of economic importance and contribute to people s livelihoods. The Rosaceae contain a great number of fruit trees of temperate regions . The fruits contain vitamins, acids, and sugars and can be used both raw and for making preserves, jam, jelly, candy, various drinks, wine, vinegar, etc. The dried fruits of the genera

Amygdalus and Armeniaca are of high commercial value. Some plants in the genus Rosa containing essential oils or with a high vitamin content are used in industry . Rosaceae wood is used for making various articles, stems and roots are used for making tannin extract, and young leaves are used as a substitute for tea. Numerous species are used for medical purposes or are cultivated as ornamentals .

The Rosaceae are very well represented in China, with great economic and scientific importance. The Co-chairs of the Editorial Committee (Wu and Raven) here note that the patterns of relationship are complex and the group is taxonomically difficult. [1]

Genus Geum

Herbs perennial , rhizomatous , sometimes stoloniferous . Stipules adnate to and sheathing petiole ; radical leaves pinnate or pseudopinnate; terminal leaflet largest; lateral leaflets often in alternating larger and smaller pairs; cauline leaves few, often 3-foliolate or bractlike. Flowers solitary or in corymbs, bisexual . Hypanthium turbinate or hemispheric . Sepals 5, valvate , persistent ; epicalyx segments 5, small, alternate with sepals. Petals 5, yellow, white, or red, orbicular or obovate . Stamens numerous , crowded. Disk lining hypanthium, smooth or ribbed . Carpels numerous, borne on prominent , usually cylindric receptacle, free ; ovule ascending ; style filiform , jointed ; stigma slightly recurved or hooked , minute. Achenes sessile or stipitate , small, hooked at apex of beak . Seed erect ; testa membranous; cotyledons oblong . x = 7.

About 70 species: widespread in temperate zones of both hemispheres; three species in China.[2]

Physical Description

Biology

Reproduction

Duration: Perennial

Taxonomy

Notes

Name Status: Accepted Name .

Last scrutiny: 2009

Similar Species

Members of the genus Geum

ZipcodeZoo has pages for 59 species, subspecies, varieties, forms, and cultivars in this genus:

G. aleppicum (Yellow Avens) · G. aleppicum var. cuneatum (Yellow Avens) · G. aurantiacum (Avens) · G. calthifolium (Caltha-Leaf Avens) · G. canadense (White Avens) · G. canadense var. brevipes (White Avens) · G. canadense var. camporum (White Avens) · G. canadense var. grimesii (Grand Birch) · G. canadense var. texanum (Texan Avens) · G. chiloense (Avens) · G. chiloense 'Lady Stratheden' (Lady Stratheden Avens) · G. coccineum (Scarlet Avens) · G. coccineum 'Cooky' (Scarlet Avens) · G. geniculatum (Bent Avens) · G. glaciale (Glacier Avens) · G. laciniatum (Rough Avens) · G. laciniatum var. laciniatum (Rough Avens) · G. macranthum (Avens) · G. macrophyllum (Large Leaf Avens) · G. macrophyllum var. macrophyllum (Largeleaf Avens) · G. magellanicum (Hierba Del Clavo) · G. montanum (Alpine Avens) · G. peckii (Mountain Avens) · G. pentapetalum (Aleutian Avens) · G. pulchrum (Avens) · G. radiatum (Appalachian Avens) · G. rivale (Bog Avens) · G. rivale 'Album' (Bog Avens) · G. rivale 'Leonard's Double' (Bog Avens) · G. rivale 'Leonard's Variety' (Bog Avens) · G. rossii (Ross Avens) · G. rossii var. depressum (Ross' Avens) · G. rossii var. turbinatum (Ross Avens) · G. triflorum (Old Man's Whiskers) · G. triflorum f. ornatum (Old-Man´s-Whiskers) · G. triflorum var. campanulatum (Old Man's Whiskers) · G. triflorum var. canescens (Alpine Old Man's Whiskers) · G. triflorum var. ciliatum (Old Man's Whiskers) · G. urbanum (Avens) · G. urbanum 'Checkmate' (Bennet) · G. vernum (Spring Avens) · G. virginianum (Cream Avens) · G. x aurantiacum (Avens) · G. x heldreichii 'Georgenberg' (Georgenberg Chilean Avens) · G. x macranthum (Avens) · G. x pulchrum (Avens) · G. 'Blazing Sunset' (Avens) · G. 'Borisii' (Boris Avens) · G. 'Coppertone' (Avens) · G. 'Dolly North' (Avens) · G. 'Fireball' (Avens) · G. 'Georgenberg' (Avens) · G. 'Lady Stratheden' (Avens) · G. 'Lemon Drops' (Avens) · G. 'Mango Lassi' (Grecian Rose) · G. 'Mrs J. Bradshaw' (Avens) · G. 'Paso Doble' (Avens) · G. 'Prinses Juliana' (Avens) · G. 'Werner Arends' (Scarlet Avens)

More Info

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Further Reading

• 1997 IUCN red list of threatened plants Cambridge: IUCN, World Conservation Union, 1998 url p. 492.
• Britton, N. L. (ed.). North American flora. 22 1913 [New York]New York Botanical Garden. url p. 406.
• Bulletin of the Torrey Botanical Club. 6 1875-1879 New York: Torrey Botanical Club, 1870-1996 url p. 337, p. 488, p. 73.
• Chapman, A. W. Flora of the southern United States:containing abridged descriptions of the flowering plants and ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi, and Florida: arranged according to the natural system /By A. W. Chapman, the ferns by Prof. Daniel C. Eaton. 1860 N. Y.: Ivison, Phinney, 1860. url p. 123.
• Contributions from the New York Botanical Garden. New York: The Garden, 1899- url p. 488.
• Flora of the Southern United States: containing an abridged description of the flowering plants and ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi, and Florida: arranged according to the natural system. New York, Ivison, Blakeman, Taylor & Co., [c1883] url .
• Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahom by John Kunkel Small. New York, The author, 1913. url p. 522, p. 523, p. 523.
• Manual of the southeastern flora: being descriptions of the seed plants growing naturally in Florida, Alabama, Mississippi, eastern Louisiana, Tennessee, North Carolina, South Carolina and Georgia. 1933 New York: The author, 1933. url p. 617.
• Physiographical sketch of that portion of the Rocky Mountain Range: at the head waters of South Clear Creek and east of Middle Park: with an enumeration of the plants collected in this district in the summer months of 1861 /by C.C. Parry. 1862 New Haven: s.n., 1862? url p. 22.
• Scientific papers of Asa Gray / selected by Charles Sprague Sargent. Boston, Houghton, 1889. url p. 501, p. 58.
• Scientific papers of Asa Gray, selected by Charles Sprague Sargent. Boston, Houghton, Mifflin, 1889. url p. 58, p. 58, p. 63, p. 63.
• Smithsonian miscellaneous collections. 15 1878 Washington: Smithsonian Institution, 1862-1968. url p. 284.
• The Canadian naturalist and geologist. Montreal: B. Dawson, 1856-1868. url p. 436.
• The Gardeners' chronicle: a weekly illustrated journal of horticulture and allied subjects. London: [Gardeners Chronicle], 1874-1955. url p. 567.
• Torrey, J. & A. Gray A flora of North America: containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico, arranged according to the natural system /by John Torrey and Asa Gray. New York: Wiley & Putnam, 1838-[1843]. url p. 422.
• Transactions of the Canadian Institute. Toronto: Canadian Institute. url p. 203.
• Yü Te-tsun, Lu Ling-ti, Ku Tsue-chih, Li Chao-luan, Kuan Ke-chien & Chiang Wan-fu. 1974, 1985, 1986. Rosaceae. In: Yü Te-tsun, ed., Fl. Reipubl. Popularis Sin. 36: 1443; 37: 1516; 38: 1133.
• Yü Te-tsun, Lu Ling-ti, Ku Tsue-chih, Li Chao-luan, Kuan Ke-chien & Chiang Wan-fu. 1974, 1985, 1986. Rosaceae. In: Yü Te-tsun, ed., Fl. Reipubl. Popularis Sin. 36: 1443; 37: 1516; 38: 1133.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
• Global Biodiversity Information Facility. Accessed January 27, 2008. http://www.gbif.org Mediated distribution data from provider.
• IOPI Global Plant Checklist. Release date: August 1, 2007
• Nghia, N.H. 1998. Dalbergia entadoides. In: IUCN 2006. 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 20 October 2006.
• Nielsen IC & Rico ML, 1994 (from ILDIS).
• Pippen, Jeffrey S. Jeff's Nature Page. Accessed December 8, 2007.
• Podlech D, 1996 (from ILDIS).
• Polhill RM, 1993 (from ILDIS).
• Rhytismatales database 2006.
• Ruggiero M., Gordon D., Bailly N., Kirk P., Nicolson D. (2011). The Catalogue of Life Taxonomic Classification, Edition 2, Part A. In: Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D., eds). DVD; Species 2000: Reading, UK.
• Schrire BD, 1994-10 (from ILDIS).
• Sokoloff DD, 2001-03 (from ILDIS).
• Stirton CH, 2001-06 (from ILDIS).
• The Global Lepidoptera Names Index2, 12.2, 2005.
• The International Plant Names Index. Accessed Jan 19, 2007.
• The Virtual Field Herbarium.
• Thomson, Christian (from Diptera).
• USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 28, 2008)
• USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
• Vaz AMSF, 2001-05 (from ILDIS).
• World Conservation Monitoring Centre 1998. Adenanthera intermedia. In: IUCN 2006. 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 20 October 2006.
• van der Maesen LJG, 1993 (from ILDIS).
• van der Maesen, LJG, 2001-03 (from ILDIS).

Data Sources

Accessed through GBIF Data Portal January 30, 2008:

• USDA PLANTS, USDA PLANTS Database

Identifiers

• Biodiversity Heritage Library NamebankID: 2649877
• Catalogue of Life Accepted Name Code: Ros-53970
• GRIN Nomen Number: 400619
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 24651
• Natural Heritage Network Species Identifier: PDROS0S050
• U.S.D.A. Plant Symbol: GEGE
• Zipcode Zoo Species Identifier: 39333

Footnotes

1. Cuizhi Gu, Chaoluan Li, Lingdi Lu, Shunyuan Jiang, Crinan Alexander, Bruce Bartholomew, Anthony R. Brach, David E. Boufford, Hiroshi Ikeda, Hideaki Ohba, Kenneth R. Robertson & Steven A. Spongberg "Rosaceae". in Flora of China Vol. 9 Page 46. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. Li Chao-luang, Hiroshi Ikeda, Hideaki Ohba "Geum". in Flora of China Vol. 9 Page 286. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

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