Echinops sphaerocephalus

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Echinops sphaerocephalus
Kugeldistel 20050705 565.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cynareae
Genus: Echinops
Species: E. sphaerocephalus
Binomial name
Echinops sphaerocephalus
L.
Synonyms

Echinops sphaerocephalus, known by the common name Great globe thistle or Pale globe-thistle, is a species of globe thistle belonging to the family Asteraceae.

Etymology[edit]

The genus name derives from the Greek words "ekhinos" meaning "hedgehog" and "opisis" meaning "aspect", with reference to the appearance of the inflorescence, while the species name sphaerocephalus derives from the words "sphaera" meaning "round" and "kephalos" meaning head.

Description[edit]

flowers, with bee

This is a glandular, woolly perennial herbaceous plant which reaches on average 50–100 centimetres (20–39 in) of height, with a maximum of two metres.

Its erect, branching, gray, slightly wrinkled and hairy stems bear the occasional large, soft, sharply toothed, sharp-lobed pointed green leaves. They are sticky hairy above, and white woolly below.

Atop each stem is an almost perfectly spherical inflorescence up to 6 cm in diameter, packed with white or blue-gray disc florets. It flowers from June until September.[1]

The flowers are pollinated by insects (usually bees, wasps and butterflies) (entomogamy) and are hermaphrodite (self fertilization or autogamy). The fruits are hairy cylindrical achenes about 7 to 8 mm long. They ripe from September through October. The seed dispersal is granted by wind (anemochory).

Distribution[edit]

This species is native to Eurasia but it lives on other continents where it was introduced, including North America where it is a widespread weed. It is very common in the mountains of southern France and southern and central Europe.

Habitat[edit]

It grows in sunny, rocky or brushy places, with more or less mineral rich soils, at an altitude of 0–400 metres (0–1,312 ft) above sea level.

Subspecies[edit]

  • Echinops sphaerocephalus L. subsp. albidus (Boiss. et Spruner) Kozu.
  • Echinops sphaerocephalus L. subsp. sphaerocephalus

Gallery[edit]

References[edit]

  1. ^ Rose, Francis (1981). The Wild Flower Key. Frederick Warne & Co. pp. 386–387. ISBN 0-7232-2419-6. 

External links[edit]