Trifolium angustifolium

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Faboideae
Tribus: Trifolieae
Genus: Trifolium
Subgenus: T. subg. Trifolium
Sectio: T. sect. Trifolium

Species: Trifolium angustifolium
Name

Trifolium angustifolium L., Sp. Pl. 2: 769 (1753).
Synonyms

Homotypic
Triphylloides angustifolia (L.) Moench, Methodus: 510 (1794).

Homonyms

Trifolium angustifolium (Litv.) Iljin = Trifolium lupinaster L.

Distribution
Native distribution areas:

Continental: Europe
Regional: Northern Europe
Great Britain (introduced).
Regional: Middle Europe
Czechoslovakia (Czech Republic; casual).
Regional: Southwestern Europe
Baleares, Corse, France, Portugal, Sardegna, Spain.
Regional: Southeastern Europe
Albania, Bulgaria, Greece, Italy, Kriti, Romania, Sicilia (Malta, Sicily), Turkey-in-Europe, Yugoslavia (Serbia & Kosovo, Bosnia & Hercegovina, Montenegro, Slovenia, Croatia, Macedonia).
Regional: Eastern Europe
Belarus, Baltic States (Estonia) (introduced), Krym, Ukraine (introduced).
Continental: Africa
Regional: Northern Africa
Algeria, Egypt, Libya, Morocco, Tunisia.
Regional: Macaronesia
Azores (Faial, Pico, Santa Maria, Sao Jorge, Sao Miguel, Terceira), Canary Islands (Gran Canaria, Gomera, Hierro, La Palma, Tenerife, Fuerteventura, Lanzarote), Madeira (Desertas, Madeira, Porto Santo), Selvagens.
Regional: Southern Africa
Cape Provinces, Lesotho (introduced).
Continental: Asia-Temperate
Regional: Middle Asia
Turkmenistan (introduced).
Regional: Caucasus
North Caucasus, Transcaucasus (Armenia, Azerbaijan, Gruziya)
Regional: Western Asia
Cyprus, East Aegean Islands, Iran, Iraq, Lebanon-Syria (Lebanon, Syria), Palestine (Israel), Turkey.
Regional: Eastern Asia
Japan, Nansei-shoto (introduced).
Continental: Australasia
Regional: Australia
New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia (introduced).
Regional: New Zealand
New Zealand North, New Zealand South (introduced).
Continental: Northern America
Regional: Northwestern U.S.A.
Oregon (introduced).
Regional: Southwestern U.S.A.
California (introduced).
Regional: Southeastern U.S.A.
Alabama, South Carolina (introduced).
Continental: Southern America
Regional: Southern South America
Chile Central, Uruguay (introduced).

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References
Primary references

Linnaeus, C. 1753. Species Plantarum. Tomus II: 769. Reference page.

Additional references

Authier, P. & Covillot, J. 2011. Catalogue actualisé des plantes de l'île de Rhodes (Grèce). Saussurea 41: 131–170. Full issue PDF; 19 MB Reference page.
Boulos, L. 1999. Flora of Egypt. Volume 1 (Azollaceae – Oxalidaceae). Cairo: Al Hadara Publishing, xv + 419 pp., ISBN 977-5429-14-5. Reference page.
Zohary, M. & Heller, D. 1984. The genus Trifolium. Jerusalem: The Israel Academy of Sciences and Humanities. ISBN 965-208-056-X Reference page.

Links

Govaerts, R. et al. 2021. Trifolium angustifolium in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 Jun 15. Reference page.
International Plant Names Index. 2021. Trifolium angustifolium. Published online. Accessed: Jun 15 2021.
Tropicos.org 2021. Trifolium angustifolium. Missouri Botanical Garden. Published on the internet. Accessed: 2021 Jun 15.
Hassler, M. 2021. Trifolium angustifolium. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2021 Jun 15. Reference page.
Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Trifolium angustifolium. Accessed: 15 Jun 2021.
USDA, ARS, Germplasm Resources Information Network. Trifolium angustifolium in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 28-Oct-07.

Vernacular names
Deutsch: Schmalblättriger Klee
English: narrow clover, narrowleaf crimson clover
français: Trèfle à feuilles étroites
italiano: Trifolglio a foglie strette
日本語: トガリバツメクサ
русский: Клевер узколистный
Türkçe: Dar yapraklı üçgül

Trifolium angustifolium is a species of clover known by the common names narrowleaf crimson clover,[1] narrow clover[2] and narrow-leaved clover.

Distribution

It is native to Europe, Asia, and North Africa. Trifolium angustifolium occurs in many types of habitat, including disturbed areas.

It can be found elsewhere as an introduced species, including an invasive species in parts of North America, such as California.
Description

Trifolium angustifolium is an annual herb growing erect in form. The leaves are divided into narrow leaflets which are linear to lance-shaped and measure up to 4.5 centimeters long. The leaves have stipules tipped with bristles. The herbage is hairy in texture.

The inflorescence is a cylindrical spike of flowers measuring 1 to 5 centimeters long. Each flower has a calyx of sepals with long, hairy, needle-like lobes that harden into bristles as the plant dries. Within each calyx is a pink corolla about a centimeter long.
Trifolium angustifolium, Hearst San Simeon State Park
References

USDA, NRCS (n.d.). "Trifolium angustifolium". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 December 2015.
BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.