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Common names include toothache plant, Szechuan buttons, [2] paracress, jambu, [3] buzz buttons, [4] tingflowers and electric daisy. [5] Its native distribution is unclear, but it is likely derived from a Brazilian Acmella species. [6] A small, erect plant, it grows quickly and bears gold and red inflorescences. It is frost-sensitive but ...
The large, showy, golden yellow, trumpet-shaped flowers are in clusters at the ends of branches. The corolla of the flower is bell- to funnel-shaped, five-lobed (weakly two-lipped), often reddish-veined in the throat and is 3.5 to 8.5 cm long. Flowering takes place from spring to fall, but more profusely from spring to summer.
The plant contains chemicals that are toxic to animals including humans, but it has also been used as a medicine. All parts of the plant contain protoanemonin, which can cause severe skin and gastrointestinal irritation, bitter taste and burning in the mouth and throat, mouth ulcers, nausea, vomiting, diarrhea, and hematemesis. [47] Anthurium spp.
Melilotus officinalis can be an annual or biennial plant, and is 120–180 centimetres (4–6 ft) high at maturity. [3] Leaves alternate on the stem and possess three leaflets. Yellow flowers bloom in spring and summer and produce fruit in pods typically containing one seed. Seeds can be viable for up to 30 years.
Hypericum perforatum, commonly known as St John's wort (sometimes perforate St John's wort or common St John's wort), is a flowering plant in the family Hypericaceae.It is a perennial plant that grows up to 1 metre (3 ft 3 in) tall, with many yellow flowers that have clearly visible black glands around their edges, long stamens (male reproductive organs), and three pistils (female reproductive ...
It also contains the alkaloid gloriocine. Within a few hours of the ingestion of a toxic amount of plant material, a victim may experience nausea, vomiting, numbness, tingling around the mouth, burning in the throat, abdominal pain, and bloody diarrhea, which leads to dehydration.
Centaurea solstitialis, the yellow star-thistle, is a species of thorny plant in the genus Centaurea, which is part of the family Asteraceae. A winter annual , it is native to the Mediterranean Basin region and invasive in many other places.
In spring, the plant produces large flowers with 5-fold symmetry. The yellow petals are long and strap-like, and dangle over the umbrella-like style of the flower, which is held upside down at the end of a 50 cm, 20" long scape. The stigma of the flower are found at the tips of the 'spokes' of this umbrella. Pollinating insects generally enter ...