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Rudbeckia hirta is an upright annual (sometimes biennial or perennial) growing 30–100 cm (12–39 in) tall by 30–45 cm (12–18 in) wide.It has alternate, mostly basal leaves 10–18 cm long, covered by coarse hair, with stout branching stems and daisy-like, composite flower heads appearing in late summer and early autumn.
Leucanthemum vulgare, commonly known as the ox-eye daisy, oxeye daisy, dog daisy, marguerite (French: Marguerite commune, "common marguerite") and other common names, [2] is a widespread flowering plant native to Europe and the temperate regions of Asia, and an introduced plant to North America, Australia and New Zealand.
Diagram of flower parts. In botany, floral morphology is the study of the diversity of forms and structures presented by the flower, which, by definition, is a branch of limited growth that bears the modified leaves responsible for reproduction and protection of the gametes, called floral pieces. [note 1]
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.
A floral diagram is a graphic representation of the structure of a flower. It shows the number of floral organs, their arrangement and fusion. Different parts of the flower are represented by their respective symbols. Floral diagrams are useful for flower identification or can help in understanding angiosperm evolution.
Echinacea / ˌ ɛ k ɪ ˈ n eɪ s i ə, ˌ ɛ k ɪ ˈ n eɪ ʃ i ə / [1] is a genus of herbaceous flowering plants in the daisy family. It has ten species, which are commonly called coneflowers . They are native only in eastern and central North America , where they grow in wet to dry prairies and open wooded areas.
Rhodanthe, also known as sunray [3] or pink paper daisy, is a genus of Australian plants in the tribe Gnaphalieae within the family Asteraceae. [4] [5] R. chlorocephala subsp. rosea. The name Rhodanthe is derived from Greek rhodon, rose and anthos, flower.
Schemes and floral diagrams of the different floret types of the Asteraceae: Leucanthemum vulgare: a = disc flower; b = ray flower. 1 – style with stigmas 2 – anthers 3 – corolla ; typically, in the ray flower, three petals are joined to form a strap (in other species, five petals can fuse to form a ligule) 4 – reduced calyx