Pappus (botany)


This article is about a flower structure. For the mathematician, see Pappus of Alexandria.



Pappus of Cirsium arvense


Further information: Asteraceae § Floral heads

The pappus is the modified calyx, the part of an individual floret, that surrounds the base of the corolla tube in flower heads of the plant family Asteraceae. The term is sometimes used in other plant families such as Asclepiadaceae (milkweeds), whose seeds have a similar structure attached, although it is not related to the calyx of the flower.


The Asteraceae pappus may be composed of bristles (sometimes feathery), awns, scales, or may be absent. In some species, the pappus is too small to see without magnification. In species such as Dandelion or Eupatorium, feathery bristles of the pappus function as a "parachute" which enables the seed to be carried by the wind.[1] The name derives from the Ancient Greek word pappos, Latin pappus, meaning "old man", so used for a plant (assumed to be an Erigeron species) having bristles and also for the woolly, hairy seed of certain plants.



References




  1. ^ "Composite flowers". 




External links


  • Asteraceae morphology

  • Composite flowers




The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP
-

Popular posts from this blog

How to make file upload 'Required' in Contact Form 7?

How to make file upload 'Required' in Contact Form 7? I have a Contact Form 7 form on my Wordpress website and I have specified that the file upload is mandatory by putting a * , however the users are able to submit the form without file upload. * Relevant Contact Form 7 form is given below: <div class="filelink">[file* AddanImage filetypes:gif|png|jpg|jpeg]</div> How do I write the Contact Form 7 code or add a validation perhaps so that the users are not able to submit the form without uploading an image? Any hints/help/guidance is highly appreciated. Have you check doc - contactform7.com/file-uploading-and-attachment – Mukesh Panchal Jun 30 at 8:38 @MukeshPanchal I have and the code complies with the documentation – Hamza Ahmad Jul 1 at 10:44
Read more

Rothschild family

Image
"House of Rothschild" redirects here. For the film, see The House of Rothschild. For other uses, see Rothschild (disambiguation). Rothschild Jewish noble banking family Coat of arms granted to the Barons Rothschild in 1822 by Emperor Francis I of Austria Ethnicity Jewish Current region Western Europe (mainly United Kingdom, France, and Germany) [1] Etymology Rothschild (German): "red shield" Place of origin Frankfurter Judengasse, Frankfurt, Holy Roman Empire Founded 1760s (1577  ( 1577 ) ) Founder Mayer Amschel Rothschild (1744–1812) (Elchanan Rothschild, b. 1577) Titles List Freiherr von Rothschild (1822) Baronet, of Tring Park (1847) Baron Rothschild (1885) Traditions Judaism, Goût Rothschild Motto Concordia, Integritas, Industria (English: Harmony, Integrity, Industry ) Estate(s) List British properties Château de Ferrières Palais Rothschild Cadet branches List Austrian branch English branch French branch Neapolitan branch A Rothschild house, Wadd
Read more

amazon EC2 - How to make wp-config.php to writable?

Image
amazon EC2 - How to make wp-config.php to writable? I'm using Amazon EC2 with Bitnami wordpress. I recently tried to use plugins, they install and activate well, but there are still errors. Those errors look like permission errors. Also, perhaps, how to make the whole wordpress directory writable? I'm only accessing through SSH. Some of the errors: "A definition of a siteurl or homeurl was detected in your wp-config.php, but the file is not writable. Set your wp-config.php to writable and reload this page." From W3 total Cache: Please add the error messages you get back. – Damien Feb 8 '17 at 12:42 one is: " A definition of a siteurl or homeurl was detected in your wp-config.php, but the file is not writable. Set your wp-config.php to writable and reload this page."
Read more