Quantcast

Tumbleweed Reference Libraries

Page 1 of about 1 Articles
Sahara Mustard Brassica tournefortii
2009-04-28 15:40:33

Brassica tournefortii is a species of mustard plant that is more commonly known as Asian, African and Sahara mustard. It is very similar to other mustard species blooming annually with long stems reaching just over 3 feet in length, but the flowers are a duller yellow. Indigenous to North Africa and the Middle East, this species was transported accidentally to the United States by humans. It...

Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
Related