Leucanthemum is a genus of flowering plants in the aster family, Asteraceae. Species range naturally from Europe through the Caucasus, Turkey, Iran, Central Asia, and Siberia to the Russian Far East. Some species are known on other continents as introduced species, and some are cultivated as ornamental plants. The name Leucanthemum derives from the Greek words λευκός – leukos ("white") and ἄνθεμον – anthemon ("flower"). Common names for Leucanthemum species usually include the name daisy (e.g. ox-eye daisy, Shasta daisy), but "daisy" can also refer to numerous other genera in the Asteraceae family.
Description Leucanthemum species are perennial plants growing from red-tipped rhizomes. The plant produces one erect stem usually reaching 40 to 130 centimeters tall, but known to exceed 2 meters at times. It is branching or unbranched and hairy to hairless. Some species have mainly basal leaves, and some have leaves along the stem, as well. Some leaves are borne on petioles, and others are sessile, attached to the stem at their bases. They vary in shape, and some are lobed or toothed.
The flower head is solitary, paired, or in a group of three on the stem. The base of the head is layered with up to 60 or more rough-edged phyllaries. The Leucanthemum head has about 13 to 34 ray florets of various widths, occasionally more, and rarely none. The ray florets are always white but fade pink with age. The head has over 100 yellow disc florets at the center. The fruit is a ribbed, hairless cypsela.Leucanthemum. Flora of North America.
Ecology Leucanthemum species are used as food plants by the larvae of some Lepidoptera species, including the bucculatricid leaf-miners Bucculatrix argentisignella, B. leucanthemella, and B. nigricomella, which feed exclusively on Leucanthemum vulgare.
Species About 50 species are accepted, along with several interspecies hybrids.
Leucanthemum adustum Gremli Leucanthemum ageratifolium Leucanthemum aligulatum Vogt Leucanthemum × aramisii Leucanthemum × athosii Leucanthemum atratum (Jacq.) DC. Leucanthemum burnatii Briq. & Cavill. Leucanthemum cacuminis Leucanthemum cantabricum Leucanthemum catalaunicum Vogt Leucanthemum chloroticum Leucanthemum coronopifolium Vill. Leucanthemum corsicum (Sieber ex Less.) DC. Leucanthemum × corunnense Leucanthemum crassifolium Leucanthemum cuneifolium Legrand ex H.J.Coste Leucanthemum delarbrei Timb.-Lagr. Leucanthemum eliasii Leucanthemum esterellense Leucanthemum favargeri Leucanthemum gallaecicum Leucanthemum gaudinii Dalla Torre Leucanthemum glaucophyllum (Briq. & Cavill.) Jahand. Leucanthemum gracilicaule (Dufour) Pau Leucanthemum graminifolium (L.) Lam. Leucanthemum halleri Ducommun Leucanthemum heterophyllum (Willd.) DC. Leucanthemum illyricum (Horvatić) Vogt & Greuter Leucanthemum ircutianum DC. Leucanthemum laciniatum Leucanthemum lacustre (Brot.) Samp. Leucanthemum legraeanum Leucanthemum ligusticum Leucanthemum lithopolitanicum (E.Mayer) Polatschek Leucanthemum maestracense Vogt & F.H.Hellw. Leucanthemum × marchii Leucanthemum maximum (Ramond) DC. – max chrysanthemum Leucanthemum meridionale Legrand Leucanthemum monspeliense (L.) H.J.Coste Leucanthemum montserratianum Vogt Leucanthemum pachyphyllum Leucanthemum pallens DC. Leucanthemum × pawlowskii Leucanthemum platylepis Borbás Leucanthemum pluriflorum Leucanthemum × porthosii Leucanthemum pseudosylvaticum Leucanthemum pyrenaicum Leucanthemum rohlenae (Horvatić) Vogt & Greuter Leucanthemum rotundifolium DC. Leucanthemum subglaucum De Laramb. Leucanthemum sylvaticum (Brot.) Nyman Leucanthemum tridactylites (A.Kern. & Huter) Bazzich. Leucanthemum valentinum Leucanthemum virgatum (Desr.) Clos Leucanthemum visianii (Gjurašin) Vogt & Greuter Leucanthemum vulgare (Vaill.) Lam. – ox-eye daisy
Artificial hybrids Leucanthemum × superbum (Bergmans ex J.W.Ingram) D.H.Kent – artificial hybrid, L. lacustre × L. maximum × L. vulgare – Shasta daisy
Formerly placed here Mauranthemum paludosum (as Leucanthemum paludosum (Poir.) Bonnet & Barratte)
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References
External links
GRIN Species Records of Leucanthemum