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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.
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The seeds germinate in the first rains of late summer or autumn. The plants grow through the winter, and have a major flush of bloom in late spring. In dry summer climates, the plants die after maturing seeds. In sites having sufficient summer moisture, plants can continue growth and flowering; and may even behave as short-lived perennials.
Leonardo da Vinci drew O. umbellatum and included the plant in one of his depictions of Leda and the Swan (1508–1515), in which the flowers are held in Leda's left hand. [41] [42] In folklore, the biblical star of Bethlehem is said to have fallen to the earth and shattered into pieces which became the ubiquitous white flowers. [24]
Most are herbaceous perennial plants 0.25–1 metre (1–3 ft) tall, but some are woody shrubs 0.25–3.5 metres (1–11 ft) tall. They have compound , deeply lobed leaves and large, often fragrant flowers, in colors ranging from purple and pink to red, white or yellow, in late spring and early summer.
Snow-in-summer is a common name or term used for several different plants, namely those that have showy clusters of white-coloured flowers which bloom in summer or late spring: Cerastium tomentosum , a low-growing flowering plant of European origin
These fall flowers and plants will bring vibrant color to your beds and borders throughout the autumn months. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800 ...
The flowers are perched on a pedicel (i.e., flower stalk) raising them above the leaf whorl, and grow pinker as they age. [9] [10] The flowers' stigmas are slender, straight or mostly so, narrowing at the end. [6] The white petals are much longer than the green sepals. [6] The flowers have six stamens in two whorls of three, which persist after ...