Daisies of Delaware County

In a previous post Anatomy of a Flower, I explained what the basic structure of a flower is. In this post, I introduce a variation on this basic plan, the daisy. The typical shape of a daisy is that of a wheel, where the spokes are represented by the petals. The structural distinctiveness of the daisy is in the hub of the wheel, which actually consists of many minute flowers all crowded together into one place. This flowering structure is the defining characteristic of a very large family of plant species traditionally called the Compositae, which includes many plants important to the gardens and landscapes of Delaware County.

Leucanthemum is a group of species (a genus) which is blooming right now in Delaware County. Above is pictured the Oxeye Daisy (Leucanthemum vulgare) a native of Eurasian grasslands which has escaped from North American gardens to become naturalized in fields and along roadsides.  It has a typical wild daisy form. Below top is pictured a modern garden version of Leucanthemum, the variety ‘Ice Star’, where it is evident that the plant breeders have highly modified the original daisy form.

Another closely related group of species of great importance to fall gardens in Delaware County is the genus Chrysanthemum. Most familiar are the pots of mums available for sale in the fall at the local greenhouse or supermarket. But there are also several varieties which are very happy planted as perennials in the garden. Pictured below middle is an heirloom variety of Chrysanthemum just beginning to bloom now here in Delaware County.  Pictured below bottom is Chrysanthemum ‘Clara Curtis’ which usually doesn’t bloom here till late in September. Both of these varieties show the typical daisy shape.

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