Kids Encyclopedia

Snapdragon

Snapdragon — Antirrhinum is a genus of plants more commonly known as snapdragons from the flowers’ fancied resemblance to the face of a dragon that opens and closes its mouth when properly squeezed (thus the ‘snap’). The antirrhinums used to be treated as the family Scrophulariaceae, but studies of DNA sequences have led to the inclusion of Antirrhinum in a …

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Senna

Senna — Senna (from Arabic sanâ), the sennas, is a large genus of around 250 species of flowering plants in the family Fabaceae, subfamily Caesalpinioideae. This diverse genus is native throughout the tropics, with a small number of species reaching into temperate regions. Almost all species were at one time or another placed in Cassia, a close relative which until …

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Sassafras

Sassafras — Sassafras is a genus of four species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia. Sassafras trees grow from 15–35 m (50–120 feet ) tall and 70–150 cm (2.5–6 feet) in diameter, with many slender branches, and smooth, orange-brown bark. The branching is sympodial. The bark of the mature trunk is …

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Sagebrush

Sagebrush — Sagebrush (Artemisia tridentata, Big Sagebrush, Common Sagebrush, Blue Sagebrush, or Black Sagebrush) is a shrub or small tree from the family Asteraceae. Some botanists treat it in the segregate genus Seriphidium, as S. tridentatum (Nutt.) W. A. Weber, but this is not widely followed. The name “sagebrush” is also used for several related members of the genus Artemisia, …

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Shamrock

Shamrock — The shamrock, a symbol of Ireland and a registered trademark of the Republic of Ireland, is a three-leafed old white clover, sometimes (rarely nowadays) Trifolium repens (white clover, known in Irish as seamair bhán) but more usually today Trifolium dubium (lesser clover, Irish: seamair bhuí). The diminutive version of the Irish word for “clover” (“seamair”) is “seamaróg”, which …

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Shallot

Shallot — The term Shallot is used to describe two different Allium species of plant. The French grey shallot or griselle, which has been considered to be the “true shallot” by many, is Allium oschaninii, a species that grows wild from Central to Southwest Asia. Other varieties of shallot are Allium cepa var. aggregatum (multiplier onions), also known as A. …

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Saint-John’s-Wort

Saint-John’s-Wort — St John’s wort used alone refers to the species Hypericum perforatum, also known as Tipton’s Weed or Klamath weed, but, with qualifiers, is used to refer to any species of the genus Hypericum. Therefore, H. perforatum is sometimes called Common St John’s wort to differentiate it. The species of Hypericum have been placed by some in the family …

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