Register
Login

Email Password

Ad placement

Thristle Flower

Thristle flower in bloom.

Download Free Stock Photo of Thristle Flower

Download options:

Full size image
4320 x 2432 - 0.97mb
Medium - Social media size
970 x 546 - 0.08mb
Small - Blog size
640 x 360 - 0.04mb
Send to PIXLR to edit
Image will load in PIXLR

Login to Download

Need to Register?

Photographer:

Categories:

Flowers and Plants

Keywords: (click to search)

Show all keywords

Thristle Flower Thristle Flower

Sponsored images from iStock View footage results

Click to save 15% sitewide with code FREERANGE15

Botany plants antique engraving illustration: Onopordum acanthium (cotton thistle, Scotch thistle)

Thistle. Onopordum acanthium. Scottish Thistle isolated on white, vector illustration. Template for invitation, poster, flyer, banner, etc.

Prickly Scotch (or Scottish) thistle (Onopordum acanthium) is also known as cotton thistle. The photograph shows how it looks in its second year, which is when it grows to measure about 7 feet (over 2 metres) in height. The length of the thorns / prickles can be gauged by the adult fingers that rest against them. Scotch thistle is a biennial. At first a spiny rosette shows itself while a deep tap root is developing under the soil. In the second year, the large central stem grows and classic and impressive purple thistle flowers grow from June to July. It has been suggested that gardeners might plant this thistle deliberately just for this impressive display, together with its overall attractive pale grey-green colour. The ground in which this thistle flourishes was cleared of brambles just a year ago, with a view to turning the land into allotments for local gardeners. In the meantime, wildflower seeds have developed, and now the area grows foxgloves, opium poppies, scarlet pimpernel, red dead-nettle, Rumex, purple vetch, stinging nettles, larkspur and groundsel, to name but a few, in addition to the Scotch thistle.

Very stout gray- or white-felted, tall biennial, to 3m; stem branched above, often yellowish, spiny-winged to the top. Leaves in a basal rosette in the first year, oval to lanceolate, with a spiny, undulate margin. Flower heads thistle-like, purple or white, 30-50mm, usually solitary; flower bracts numerous, spreading, ending in a yellowish spine.

Borriquero thistle flower (Onopordum acanthium)

thorny flower of the Onopordum acanthium close-up

Very stout gray- or white-felted, tall biennial, to 3m; stem branched above, often yellowish, spiny-winged to the top. Leaves in a basal rosette in the first year, oval to lanceolate, with a spiny, undulate margin. Flower heads thistle-like, purple or white, 30-50mm, usually solitary; flower bracts numerous, spreading, ending in a yellowish spine.

Comments:

View all 0 comments

Popular Categories

Image Usage Information

Follow Us

Search Partner

Copyright © 2021
Freerange Stock, LLC

web analytics