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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.
Echeveria plants are evergreen.Flowers on short stalks (cymes) arise from compact rosettes of succulent fleshy, often brightly coloured leaves. [2] Species are polycarpic, meaning that they may flower and set seed many times over the course of their lifetimes.
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.
The plants contain berberine, a compound found in many Berberis and Mahonia species which causes vomiting, lowered blood pressure, reduced heart rate, lethargy, and other ill effects when consumed. [15] The genus name, Mahonia, derives from Bernard McMahon, one of the stewards of the plant collections from the Lewis and Clark Expedition.
In short, it is a web and computer program that takes satellite images, aerial photography, and GIS (Geographic Information System) data and superimposes all of this on a 3D globe.
The 115k members from the Stolen Dog Beds community on Reddit love sharing hilarious photos like this and have been doing so since November 8th, 2011.
Search and rescue workers dig through the rubble left behind by the Eaton Fire, in Altadena, Calif., Tuesday, Jan. 14, 2025. / Credit: Jae C. Hong / AP
Propagation is by division or by adventitious new plants developing on submerged flowering stems. The larger species make magnificent specimen plants for the larger aquarium, though they may form aerial leaves in good conditions. If the inflorescence forms submersed, small plantlets will form instead of flowers. If grown emersed and kept humid ...