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A perennial thistle with arching green leaves and edible flowers.

Artichoke

A perennial thistle with arching green leaves and edible flowers.

Illustrated is a spiny leaf of carduus arvensis or cirsium arvense. It is also known as Canada thistle.

Carduus Arvensis

Illustrated is a spiny leaf of carduus arvensis or cirsium arvense. It is also known as Canada thistle.

Cirsium muticum is a purple flowered thistle. It is found in low grounds from Newfoundland to West Virginia.

Cirsium Muticum

Cirsium muticum is a purple flowered thistle. It is found in low grounds from Newfoundland to West Virginia.

Also known as the thistle-finch, it is often kept as a pet and taught to do tricks.

Common Goldfinch of Europe

Also known as the thistle-finch, it is often kept as a pet and taught to do tricks.

"Star of the order of the Thistle." — Chambers' Encyclopedia, 1875

Order of the Thistle

"Star of the order of the Thistle." — Chambers' Encyclopedia, 1875

A high branched flower whoes petal consist of longspiny leaves. Usually bright yellow, orange or red.

Safflower

A high branched flower whoes petal consist of longspiny leaves. Usually bright yellow, orange or red.

Safflower (Carthamus tinctorius L.) is a highly branched, herbaceous, thistle-like annual, usually with many long sharp spines on the leaves. Plants are 30 to 150 cm tall with globular flower heads (capitula) and commonly, brilliant yellow, orange or red flowers which bloom in July. Each branch will usually have from one to five flower heads containing 15 to 20 seeds per head. Safflower has a strong taproot which enables it to thrive in dry climates, but the plant is very susceptible to frost injury from stem elongation to maturity.

Safflower

Safflower (Carthamus tinctorius L.) is a highly branched, herbaceous, thistle-like annual, usually with…

<i>Salsola kali</i>. This plant is also called a Russian Thistle, Prickly Glasswort, Tumbleweed, and Glasswort. It is a member of the amaranth family and is an annually growing herb. It has a bushy stem with many branches. It produces a small, white flower. It is native on sea beaches in Europe, western Asia, North and South America, and Australia.

Prickly Saltwort

Salsola kali. This plant is also called a Russian Thistle, Prickly Glasswort, Tumbleweed, and Glasswort.…

This silk fabric shows a pattern of rose, shamrock and thistle.

Silk

This silk fabric shows a pattern of rose, shamrock and thistle.

Cirsium arvense is a species of Cirsium, native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is Creeping Thistle. It is a tall herbaceous perennial plant, forming extensive clonal colonies from an underground root system that sends up numerous erect stems each spring, reaching 1&ndash;1.2 m tall (occasionally more); the stems often lie partly flat by summer but can stay erect if supported by other vegetation. The leaves are very spiny, lobed, up to 15&ndash;20 cm long and 2&ndash;3 cm broad (smaller on the upper part of the flower stem). The inflorescence is 10&ndash;22 mm diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The flowers are usually dioecious, but not invariably so, with some plants bearing hermaphrodite flowers. The seeds are 4&ndash;5 mm long, with a feathery pappus which assists in wind dispersal.

Canada Thistle

Cirsium arvense is a species of Cirsium, native throughout Europe and northern Asia, and widely introduced…

Also known as cirsium arvense, or Creeping Thistle. It is native throughout Europe and northern Asia. It is considered a weed and is edible.

Canada Thistle

Also known as cirsium arvense, or Creeping Thistle. It is native throughout Europe and northern Asia.…

"The Jewel or Badge, attached to the collar, or worn depending from a broad dark green ribbon which crosses the left shoulder, is formed of a figure of St. Andrew, of gold enamelled, his surcoat purpure, and his mantle vert, bearing before him his own cross saltire, the whole being irradiated with golden rays, and surrounded by an oval bearing the motto, 'nemo me impune lacessit.''"&mdash;Aveling, 1891

Insignia of the Order of the Thistle

"The Jewel or Badge, attached to the collar, or worn depending from a broad dark green ribbon which…

Pasture or bull thistle is the common name of cirsium lanceolatum. It is a stately biennial and very decorative.

Pasture or Bull Thistle

Pasture or bull thistle is the common name of cirsium lanceolatum. It is a stately biennial and very…

"A plant of the genus <i>Sonchus</i>, primarily <i>S. oleraceus</i>, a weed of waste places, probably native in Europe and central Asia, but now diffused nearly all over the world. It is a smooth herb with a milky juice, bearing runcinate-pinnatifid leaves and rather small yellow flower heads... 1. upper part of the stem with the heads; 2. one of the basal leaves; a, a flower; b, the achene with the pappus." &mdash;Whitney, 1889

Sow Thistle - Stem with Heads, Basal Leaves, Flower, Achene with Pappus

"A plant of the genus Sonchus, primarily S. oleraceus, a weed of waste places, probably native in Europe…