Leucanthemum x superbum

Common name: Shasta Daisy
Scientific name: Leucanthemum x superbum
Genus: Leucanthemum 濱菊屬
Family: Asteraceae or Compositae 菊科, aster , daisy, composite or sunflower family

Remarks*: It is a hybrid of L. lacustre and L. maximum 大濱菊、西洋濱菊、大白菊. It is first introduced to cultivation in 1901 and was first recorded from the wild in 1913.

Origin: cultivated hybrid

Date: 28th July

296 Similar to Leucanthemum vulgare 法國菊, 法蘭西菊, 濱菊, 春白菊, 牛眼菊, 瑪格麗特, but much larger and robust. It can reach up to 120cm.

308 Stem smooth with ridges. (vs Stem hairy with ridges in Leucanthemum vulgare 法國菊, 法蘭西菊, 濱菊, 春白菊, 牛眼菊, 瑪格麗特)

306 Stem leaves and stem. The base of the leaves clasping half the stem but with no auricles. (vs several auricles on the base of the stem leaves of Leucanthemum vulgare 法國菊, 法蘭西菊, 濱菊, 春白菊, 牛眼菊, 瑪格麗特)

305

304

307 Underside of the leaf. There are sharply-pointed teeth on the leaves. (vs roundly-toothed leaves (but it is variable) of Leucanthemum vulgare 法國菊, 法蘭西菊, 濱菊, 春白菊, 牛眼菊, 瑪格麗特)

297 Flower head solitary, 60-100mm across. (vs flower head 25-60mm in Leucanthemum vulgare 法國菊, 法蘭西菊, 濱菊, 春白菊, 牛眼菊, 瑪格麗特)

302

302_1 Green phyllaries with a mid-rib and brown edges.

300

309

309_1 Ray florets with white ligules are blooming, with 2-lobed stigma could be clearly seen. Peripheral disk florets are also blooming, with five yellow petals and anther tubes possibly open with pollens attached on the top of them.

310 Left: seed head after flowering.

311 Seed heads and flower heads.