Leucanthemum maximum

(Ramond) de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 46. 1838.

Common names: Shasta daisy
Basionym: Chrysanthemum maximum Ramond Bull. Sci. Soc. Philom. Paris 2: 140. 1800
Treatment appears in FNA Volume 19. Treatment on page 558. Mentioned on page 559.

Perennials, 20–60(–80+) cm. Stems simple or distally branched. Basal leaves: petioles 50–80(–200+) mm, expanding into obovate to spatulate blades 50–80(–120+) × 15–25(–35+) mm, margins not lobed, usually toothed, rarely entire. Cauline leaves petiolate or sessile; blades oblanceolate to lanceolate or linear, 50–120+ × 8–22+ mm, margins of mid-stem leaves usually entire proximally, regularly serrate distally. Involucres 18–28+ mm diam. Phyllaries (the larger) 2–3 mm wide. Ray florets 21–34+; laminae 20–30(–40+) mm. Ray cypselae 2–3(–4) mm, apices usually bare, rarely obscurely auriculate. 2n = 90, 108.

Phenology: Flowering spring–summer.
Habitat: Disturbed sites, meadows, seeps, clearings
Elevation: 0–1500+ m



Introduced; Ala., Calif., Wyo., w Europe (widely cultivated, sparingly adventive).


The name Shasta daisy of horticulture is associated also with Leucanthemum ×superbum (Bergmans ex J. Ingram) Bergmans ex D. H. Kent, which is generally thought to have been derived from hybrids between L. maximum and L. lacustre. Cultivars of “Shasta daisy” number in the dozens, including “single,” “double,” “quill,” and “shaggy” forms; they may be encountered as waifs or persisting from abandoned plantings.

Selected References


Lower Taxa

... more about "Leucanthemum maximum"
John L. Strother +
(Ramond) de Candolle +
Chrysanthemum maximum +
Shasta daisy +
Ala. +, Calif. +, Wyo. +, w Europe (widely cultivated +  and sparingly adventive). +
0–1500+ m +
Disturbed sites, meadows, seeps, clearings +
Flowering spring–summer. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Introduced +
Compositae +
Leucanthemum maximum +
Leucanthemum +
species +