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EFSA and JECFA reviewed a feeding study in rats and both authorities recognized that the no adverse effect level for spilanthol was 572 mg/kg b.w./day, yielding a safe dose of spilanthol of 1.9 mg/kg b.w./day, or 133.5 mg/70-kg-male/day, 111 mg/58-kg-female/day, or 38 mg/20-kg-child/day.
The flowers are yellow, with reddish-spots on their faces, differentiating the plant from the similar Impatiens capensis, which has orange flowers. They are tube or funnel shaped and 3–4 cm (1–1.5 in) long, with nectar stored at a narrow spur at the back of the flower. [6] The flowers cluster in small quantities among the upper leaves. [5]
Zanthoxylum americanum, the common prickly-ash, common pricklyash, common prickly ash or northern prickly-ash (also sometimes called toothache tree, yellow wood, or suterberry), is an aromatic shrub or small tree native to central and eastern portions of the United States and Canada.
Zanthoxylum piperitum is harvested in Japan and Korea to produce sanshō (山椒) or chopi (초피), which has numbing properties similar to those of Chinese Sichuan peppercorns. [16] In Korean cuisine, chopi is often used to accompany fish soups such as chueo-tang , whereas the plant's seeds are separated and used to make oil, and the oil is ...
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 ...
The flowers are produced in pendulous racemes 20–40 cm (8–16 in) long, each flower 4–7 cm (1 + 5 ⁄ 8 – 2 + 3 ⁄ 4 in) diameter with five yellow petals of equal size and shape. The fruit is a legume , 30–60 cm (12–24 in) long and 1.5–2.5 cm ( 9 ⁄ 16 –1 in) broad, with a pungent odor and containing several seeds.
Tansy: corymb of flower heads with recognisable Fibonacci spirals entered by ants Tansy is a flowering herbaceous plant with finely divided compound leaves and yellow, button-like flowers. It has a stout, somewhat reddish, erect stem, usually smooth, 50–150 cm (20–59 in) tall, and branching near the top.
Aconitum anthora, variously known as anthora, yellow monkshood, or healing wolfsbane, is a yellow flowering plant species of the genus Aconitum in the family Ranunculaceae. Its native range is widespread, but mainly in European mountains, such as the Alps and the Carpathians , and the northern parts of Asia.