Teasel

TeaselTeasel — Dipsacus is a genus of flowering plant in the family Dipsacaceae. The members of this genus are known as teasel or teazel or teazle. The genus includes about 15 species of tall herbaceous biennial plants (rarely short-lived perennial plants) growing to 1-2.5 m tall, native to Europe, Asia and northern Africa.

The genus name is derived from the word for thirst and refers to the cup-like formation made where sessile leaves merge at the stem. Rain water can collect in this receptacle; this may perform the function of preventing sap-sucking insects such as aphids from climbing the stem. The leaves are lanceolate, 20-40 cm long and 3-6 cm broad, with a row of small spines on the underside of the midrib.

Teasels are easily identified with their prickly stem and leaves, and the inflorescence of purple, dark pink or lavender flowers that form a head on the end of the stem’s. The inflorescence is ovoid, 4-10 cm long and 3-5 cm broad, with a basal whorl of spiny bracts. The first flowers begin opening in a belt around the middle of the spherical or oval flower head, and then open sequentially toward the top and bottom, forming two narrow belts as the flowering progresses. The dried head persists afterwards, with the small (4-6 mm) seeds maturing in mid autumn.

The seeds are an important winter food resource for some birds, notably the European Goldfinch; teasels are often grown in gardens and encouraged on nature reserves to attract them.

Winter Daffodil, Amaryllis Family, Sternbergia Lutea, Lily-of-the-field, Asia, Family Amaryllidaceae


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