Coreopsis lanceolata, commonly known as lanceleaf coreopsis,[2] lanceleaf tickseed,[3] lance-leaved coreopsis,[4] or sand coreopsis,[5] is a North American species of tickseed in the family Asteraceae.
| Coreopsis lanceolata | |
|---|---|
| |
| Coreopsis lanceolata 'Sterntaler' | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Coreopsis |
| Species: | C. lanceolata
|
| Binomial name | |
| Coreopsis lanceolata | |
| Synonyms[1] | |
| |
Description
editCoreopsis lanceolata is a perennial plant sometimes attaining a height of over 60 cm (2 ft). The plant produces yellow flower heads singly at the top of a naked flowering stalk, each head containing both ray florets and disc florets.[6] Each flower measures 5–8 cm (2–3 in) across. Basal leaves are typically narrow, lance-shaped, and 5–15 cm (2–6 in) long with smooth margins. They have thin petioles that are 3–10 cm (1–4 in) long. Leaves higher up the stem are sessile and may be unlobed or pinnately lobed.[2] The stem leaves are opposite and generally appear only on the lower half of the stem. After flowering, the ray florets are replaced by brown achenes that are 3 mm (0.1 in) long and 3 mm (0.1 in) across.[7]
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Lanceleaf coreopsis flowers -
Detail of flowers being pollinated -
Stem leaves are few and basally disposed -
Achenes
Etymology
editThe genus name Coreopsis means "bug-like"; it comes from the Greek words "koris", meaning "bug" and "opsis", meaning "like". The genus name, as well as the common name, tickseed, comes from the fact that the seeds are small and resemble ticks. The specific epithet lanceolata refers to the shape of the leaves.[2]
Distribution and habitat
editIt is native to the eastern and central parts of the United States and naturalized in Canada, the western United States, Mesoamerica, South America, South Africa and eastern Australia.[8][9][10][11][12][13] Under natural conditions, it is found in open woodlands, prairies, plains, glades, meadows, and savannas.[4]
As an invasive plant outside of USA
editIntroduced to Japan and China as an ornamental species and later used extensively in greenification projects, particularly along river banks and railways, Coreopsis lanceolata is now known to be outcompeting native plant life and has since 2006 been labeled an invasive species by the Invasive Alien Species Act. The cultivation, transplantation, sale, or purchase of Coreopsis lanceolata is now prohibited and the plant has become the subject of a nationwide destruction campaign, even earning a spot on the Ecological Society of Japan's 100 Worst Invasive Species list.[14][15][16][17] The species is also considered an invasive weed in Eastern Australia.[18]
Ecology
editFlowers bloom April to June.[4] Many insects are attracted to the plant's nectar and pollen, including bees, wasps, butterflies, moths, flies, and beetles.[7] Birds and small mammals eat the achenes.[19] The plant can spread to form colonies.[7]
Cultivation
editCoreopsis lanceolata is useful for pollinator restoration in large urban cities, providing a food source for animals that drink the nectar and/or eat the seed. The plant should not be over watered as it will flop over. It may be restricted by growing in containers or in lawns that tend to be mowed. It requires little maintenance, although deadheading is beneficial.
It prefers a sandy, well-drained soil.[2] Heavy, clay-based soil retains moisture in winter months, which can kill many species. However, because C. lanceolata is rhizomatous (having underground stems), it is well-adapted to withstand extremes in soil moisture (both wet and dry). Adding compost to heavy soil can improve drainage as can creating a mounded bed, allowing the planting area to shed rain faster than the ground around it. It thrives in full sun (4–6 hours of direct sunlight per day).
References
edit- ^ "Coreopsis lanceolata L." www.worldfloraonline.org.
- ^ a b c d "Coreopsis lanceolata - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2021-02-20.
- ^ NRCS. "Coreopsis lanceolata". PLANTS Database. United States Department of Agriculture (USDA).
- ^ a b c "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2021-02-20.
- ^ "NatureServe Explorer 2.0". explorer.natureserve.org.
- ^ Flora of North America, Coreopsis lanceolata Linnaeus, Sp. Pl. 2: 908. 1753.
- ^ a b c "Sand Coreopsis (Coreopsis lanceolata)". www.illinoiswildflowers.info.
- ^ Biota of North America Program 2014 county distribution map
- ^ 剑叶金鸡菊jian ye jin ji ju, Coreopsis lanceolata Linnaeus
- ^ Berendsohn, W.G. & A.E. Araniva de González. 1989. Listado básico de la Flora Salvadorensis: Dicotyledonae, Sympetalae (pro parte): Labiatae, Bignoniaceae, Acanthaceae, Pedaliaceae, Martyniaceae, Gesneriaceae, Compositae. Cuscatlania 1(3): 290–1–290–13
- ^ Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
- ^ Forzza, R. C. 2010. Lista de espécies Flora do Brasil. Jardim Botânico do Rio de Janeiro, Rio de Janeiro. Archived September 6, 2015, at the Wayback Machine
- ^ "Coreopsis - Mt. Cuba Center". Mt. Cuba Center: Coreopsis for the Mid-Atlantic Region. December 2015. Retrieved 2017-01-27.
- ^ Flora of China, 剑叶金鸡菊 jian ye jin ji ju, Coreopsis lanceolata Linnaeus
- ^ 多紀保彦 (2008-04-21). 日本の外来生物: 決定版. ja:平凡社. ISBN 978-4-582-54241-7.
- ^ 畠瀬頼子 (2009-02-28). オオキンケイギク(Coreopsis lanceolata L.)(緑化植物ど・こ・ま・で・き・わ・め・る). 日本緑化工学会誌. 34 (3).
- ^ 畠瀬頼子; 小栗ひとみ; 松江正彦 (2008). 木曽川中流域における植生変遷と特定外来生物オオキンケイギクの分布特性. ランドスケープ研究. 71 (5): 553–556.
- ^ Coreopsis lanceolate lucid central weeds
- ^ "Tickseed Coreopsis". Missouri Department of Conservation.
External links
edit
Media related to Coreopsis lanceolata at Wikimedia Commons- Bioimages, Vanderbilt University photos + drawings
- Jepson Manual Treatment: Coreopsis lanceolata
