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Rudbeckia (/ r ʌ d ˈ b ɛ k i ə /) [4] is a plant genus in the Asteraceae or composite family. [ 5 ] [ 6 ] Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans .
Rudbeckia triloba, [2] the browneyed or brown-eyed susan, thin-leaved coneflower or three-leaved coneflower, [3] is a species of flowering plant in the family Asteraceae with numerous, yellow, daisy-like flowers. It is native to the central and eastern United States and is often seen in old fields or along roads. It is also cultivated as an ...
Rudbeckia laciniata, the cutleaf coneflower, [1] is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread in both Canada and the United States. [ 2 ]
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.
Rudbeckia occidentalis is a species of flowering plant in the family Asteraceae known by the common name western coneflower. [1] It is native to the northwestern United States from Washington to northern California and east to Wyoming and Montana , where it grows in moist habitat types, such as meadows.
Uroleucon rudbeckiae form colonies on many plant species within the genus Rudbeckia. Species such as: Rudbeckia amplexicaulis, Rudbeckia hirta and Rudbeckia laciniata all serve as food plants and habitat for the insect.
Rudbeckia auriculata is conspicuous in the wild due to its extreme height (occasionally over 3 m (9.8 ft)) as long as the morphological differences with Rudbeckia laciniata L. such as its dissected leaves are noted. [7] R. auriculata is a long-lived perennial.
Rudbeckia grandiflora, commonly called rough coneflower, [1] is a species of flowering plant in the family Asteraceae. Description. Growing wild in Arkansas.