| 词条 | Trifolium aureum |
| 释义 |
| image = Trifolium aureum W.jpg | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Rosids | ordo = Fabales | familia = Fabaceae | subfamilia = Faboideae | genus = Trifolium | species = T. aureum | binomial = Trifolium aureum | binomial_authority = Pollich[1] | synonyms =
| synonyms_ref = [2] }} Trifolium aureum, known by the various common names large hop trefoil, large trefoil,[3][4] large hop clover,[3] golden clover[5] or Hop clover, is a species of clover native to much of Eurasia. Large hop trefoil is a small erect herbaceous biennial plant growing to 10–30 cm tall. Like all clovers, it has leaves divided into three sessile leaflets, each leaflet 15–25 mm long and 6–9 mm broad. Its yellow flowers are arranged into small, elongated round inflorescences 12–20 mm diameter, located at the end of the stem. Each individual flower is decumbent. As they age, the flowers become brown and paper-like. The fruit is a pod usually containing two seeds. The closely related Trifolium campestre (hop trefoil) is a similar, but shorter, spreading, species with smaller leaves and flowers. The middle leaflet of its leaves also has a short rachis. Cultivation and usesThe plant is very common, and grows well on poor, undisturbed grounds. While it probably has good nutritive values, perennial species are favored as forage. DistributionTrifolium aureum is native throughout Europe (in Russia this includes non-European Ciscaucasia and western Siberia; in Spain only in the north-east; and in the European portion of the Ukraine this includes Crimea); western and northern Asia and the Middle East (in Armenia; Azerbaijan; Georgia; northern Iran; Lebanon; and Turkey); and Africa (limited to the Canary Islands).[3]Trifolium aureum is widely naturalized in North America:[3] it was first introduced to the U.S. (by way of Pennsylvania) in 1800,{{Citation needed|date=May 2012}} where it is now found in the western (as far north as Alaska) and eastern regions of the country, but not in the middle, or very much in the southern states.[5] It is also now found in Canada in all of its southerly provinces (with a possible exception being Manitoba).[5]{{Commons|Trifolium aureum}}References1. ^ Trifolium aureum was originally described and published in Historia Plantarum in Palatinatu Electoralis 2: 344–345. 1777. {{cite web |url=http://tropicos.org/Name/13004095 |title=Name - Trifolium aureum Pollich |work=Tropicos |publisher=Missouri Botanical Garden |location=Saint Louis, Missouri |accessdate=May 14, 2012}} {{cite book |author1=Blamey, M. |author2=Grey-Wilson, C. |lastauthoramp=yes | title=The Illustrated Flora of Britain and Northern Europe | publisher=Hodder & Stoughton | year=1989 | isbn=0-340-40170-2}}2. ^{{cite web |url=http://www.tropicos.org/Name/13004095?tab=synonyms |title=Name - Trifolium aureum Pollich synonyms |work=Tropicos |publisher=Missouri Botanical Garden |location=Saint Louis, Missouri |accessdate=May 14, 2012}} 3. ^1 2 3 {{GRIN | accessdate=May 14, 2012}} 4. ^{{cite web |title=BSBI List 2007 |publisher=Botanical Society of Britain and Ireland |url=http://www.bsbi.org.uk/BSBIList2007.xls |format=xls |archive-url=https://www.webcitation.org/6VqJ46atN?url=http://www.bsbi.org.uk/BSBIList2007.xls |archive-date=2015-01-25 |accessdate=2014-10-17 |deadurl=yes |df= }} 5. ^1 2 {{cite web |url=http://plants.usda.gov/java/profile?symbol=TRAU2 |title=Profile for Trifolium aureum (golden clover) |work=PLANTS Database |publisher=USDA, NRCS |accessdate=May 14, 2012}} External links
9 : Trifolium|Plants described in 1777|Flora of Europe|Flora of Western Asia|Flora of Armenia|Flora of Azerbaijan|Flora of the Canary Islands|Flora of Georgia (country)|Flora of the Alps |
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