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Taraxacum officinale, the dandelion or common dandelion, [6] is a herbaceous perennial flowering plant in the daisy family, Asteraceae. The common dandelion is well known for its yellow flower heads that turn into round balls of many silver-tufted fruits that disperse in the wind .
Dandelions are thought to have evolved about 30 million years ago in Eurasia. [35] Fossil seeds of Taraxacum tanaiticum have been recorded from the Pliocene of southern Belarus. [36] Dandelions have been used by humans for food and as an herb for much of recorded history.
Oxalate (systematic IUPAC name: ethanedioate) is an anion with the chemical formula C 2 O 2− 4. This dianion is colorless. It occurs naturally, including in some foods. It forms a variety of salts, for example sodium oxalate (Na 2 C 2 O 4), and several esters such as dimethyl oxalate ((CH 3) 2 C 2 O 4). It is a conjugate base of oxalic acid.
Oca is fairly high in oxalates, concentrated in the skin. [15] Significant variation in oxalate concentration exists among varieties, and this variation distinguishes two oca use-categories recognized by Andean farmers. [2] One use category, sour oca, contains cultivars with high oxalic acid levels. [2]
Halogeton glomeratus is considered a noxious weed in most regions of the United States; [2] a particular difficulty with H. glomeratus is that it is poisonous to sheep, and possibly to cattle, due to the high concentration of sodium oxalate in the dry plant. [3]
While fruit-eating tortoises tend to enjoy the taste, tomatoes are high in sugar and phosphorous, low in calcium and fiber – the polar opposite to what a turtle needs. 25. Parsnip
Oxalis pes-caprae, commonly known as African wood-sorrel, Bermuda buttercup, Bermuda sorrel, buttercup oxalis, Cape sorrel, English weed, goat's-foot, sourgrass, soursob or soursop; Afrikaans: suring; Arabic: hommayda (حميضة), [2] is a species of tristylous yellow-flowering plant in the wood sorrel family Oxalidaceae.
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