10 most difficult botany riddlesBotany quiz
Who was the first to create a zoo and botanical garden for scientific study?
Throughout his conquests of Asia, Alexander the Great collected many plant and animal specimens for Aristotle’s research. This allowed Aristotle to develop in Athens the first zoo and botanical garden in existence.
How deep is the root system of a giant sequoia?
4 meters (13 feet)
20 meters (60 feet)
40 meters (130 feet)
80 meters (260 feet)
The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil.
Who is the author of the "De Materia Medica", a 5-volume Greek encyclopedia about herbal medicine?
Hippocrates from Kos
Pedanius Dioscorides (40 – 90 AD) was a Greek physician, pharmacologist, botanist, and author of De Materia Medica - a 5-volume Greek encyclopedia about herbal medicine and related medicinal substances (a pharmacopeia), that was widely read for more than 1,500 years. He was employed as a physician in the Roman army.
What tree species has the widest trunk girth in the world?
The Tree of Tule is one of a number of old Montezuma cypress trees that grow in Santa Maria del Tule, Mexico. It is one of the oldest and largest in the world and has the widest girth. It has a height of forty meters, a volume of between 700 and 800m3, an estimated weight of 630 tons and a circumference of about forty meters.The trunk is so wide that thirty people with arms extended joining hands are needed to encircle it.
Which plant is known as food of the gods, gave people fire, black dung and is used to make "Lebanese Viagra"?
Ferula is a genus of about 170 species of flowering plants. Asafoetida, the dried latex from the rhizome of Ferula it is also known as food of the gods or devil's dung. The ferula also shows up in mythological contexts; Prometheus smuggled fire to humanity by hiding it in a ferula as well. In the Middle East, the common name "Lebanese Viagra" refers to the traditional use of the roots of this plant as an alleged aphrodisiac.
Where is saffron crocus most abundant in the wild?
The saffron crocus is a triploid that is incapable of independent sexual reproduction — all propagation is via manual "divide-and-set" of a starter clone. It may have emerged via plant breeding in late Bronze-Age Crete.
What's the main fly agaric toxin?
Amanita muscaria contains several biologically active agents, at least one of which, muscimol, is known to be psychoactive. Ibotenic acid, a neurotoxin, serves as a prodrug to muscimol, with approximately 10–20% converting to muscimol after ingestion. An active dose in adults is approximately 6 mg muscimol or 30 to 60 mg ibotenic acid; this is typically about the amount found in one cap of Amanita muscaria. Spring and summer mushrooms have been reported to contain up to 10 times more ibotenic acid and muscimol than autumn fruitings.
This is Schlumbergera, commonly called Christmas Cactus, because it flowers in winter. What is it called in southeast Brazil, where it occurs in the wild?
Flor de Natal (Christmas flower)
Flor de Dezembro (December flower)
Flor de Maio (May flower)
Flor de Papai Noel (Father Christmas Flower)
In Brazil, the genus is referred to as Flor de Maio (May flower), reflecting the period in which they flower in the Southern hemisphere.
Which plant was particularly valued in the production of the first paper?
The mulberry is a significant fiber crop in the history of paper. It was used for papermaking in China by around 100 AD. The paper recipe used by Cai Lun included plant bark fibres, rags and fishing nets. Early paper makers particularly valued Mulberry for producing high quality paper. Washi, a Japanese handcrafted paper, is made with the inner bark, which is pounded and mixed with water to produce a paste, which is dried into sheets.
Welwitschia is known as the plant with the longest living leaves. How many leaves does it produce in its centuries-spanning lifetime?
More than 100
More than 1000
Welwitschia is endemic to the Namib desert. The age of individual plants is difficult to assess, but many plants may be over 1000 (or even 2000) years old. Because Welwitschia only produces a single pair of foliage leaves, the plant was thought by some to be neotenic, consisting essentially of a "giant seedling." However, research showed that its anatomy is not consistent with the giant seedling idea. Instead, the plant is more accurately thought of as achieving its unusual morphology as a result of having "lost its head" (apical meristem) at an early stage.