Common name: Shasta Daisy
Leucanthemum x superbum (Bergmans ex J.W.Ingram) D.H.Kent APNI*
Synonyms: Leucanthemum maximum x lacustre APNI*
Leucanthemum maximum sensu brown (1992) APNI*
Chrysanthemum x superbum Bergmans ex J.W.Ingram APNI*
Description: Perennial herb, ± glabrous; stems erect, 50–80 cm high, striate, usually unbranched above rhizome.
Leaves narrow-elliptic to lanceolate, c. 10 cm long, to 25 mm wide, apex ± acute, margins evenly singly toothed; becoming smaller, to ± entire near heads, sessile, stem-clasping.
Heads solitary, c. 5–8 cm diam.; involucral bracts 6–12 mm long, oblong, margins and apex brown, inner bracts with expanded apical flap. Ray florets 20–40; ligules white, 3-toothed. Disc florets numerous, yellow.
Achenes c. 3 mm long; disc achenes with 10 ± equal ribs, corona absent; ray achenes with lateral ribs ± thickened, corona irregular.
Distribution and occurrence: Grows as a garden escape, occasionally naturalized. Native of Pyrenees.
NSW subdivisions: *CT, *ST, *LHI
Text by E. A. Brown
Taxon concept: P.S. Green (1994)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.