Tree of heaven

Originally imported from China to England in the mid-18th century, this fast growing, aggressive and invasive tree is now naturalized over much of southern Europe, Canada and North America. It grows in dense stands of slender saplings or as a single specimen to 40 ft(12 m) tall. When bruised or crushed the leaves and flowers of male trees have a strong, unpleasant odor. Female trees bear thousands of winged seedpods in large clusters and turn an attractive reddish brown color in late summer. The tropical looking foliage is shed in autumn and the tree is leafless over winter. Tree of heaven is short lived and the wood is brittle but sprouts grow vigorously from the roots and stump. Once established this species is very difficult to eradicate. Grows along roadsides and disturbed or abandoned areas.

Scientific name: Ailanthus altissima

Italian common name: Ailanto, Albero del paradiso

English common name: Tree of heaven

Caper

Treasured by humans for culinary seasonings and garnishes since ancient times, capers are the immature flower buds of a tough, drought tolerant shrub that is native to the Mediterranean region. This dense, scrambling or sprawling perennial bush may grow to as much as 5 ft (1.5 m) tall with an even greater spread. Solitary, 4-petaled white to pinkish flowers with long slender stamens open over a long period from spring into summer among thick rounded leaves. The stems may be spiny or unarmed. After harvest, the flower buds are preserved in granular salt or pickled in vinegar. Grows cascading or hanging from cracks and crevices in stone walls, boulders, and rock outcroppings with full sun exposure and in nutrient poor, fast draining soils of road embankments.

Scientific name: Capparis spinosa

Italian common name: Cappero comune

English common name: Caper

Wild teasel

From mid-summer and throughout winter this herbaceous native with erect, prickly and hollow stems to 6 ft (2 m) tall and large seed heads is a conspicuous plant in the Sicilian countryside. The dark pink flowers attract bees and the seed heads that follow are a food source for some birds. Once used as a natural comb for raising the nap on fabrics, especially wool, the mature seed heads are now a favorite decorative element in dried flower arrangements. Grows in sunny, uncultivated fields and woodland clearings, open borders of cultivated land and roadsides.

Scientific name: Dipsacus

Italian common name: Cardo dei lanaioli

English common name: Wild teasel

SAGRA Della SPIGA

Gangi, a hill town in the province of Palermo, is famous for its celebration of the summer wheat harvest. This 10-day festival that attracts spectators from all over Sicily and beyond includes:

- traditional folkloric dances, ('La Cordella' and others) performed by Gangi and Castellana Sicula dance groups

- special children's dance programs and music shows

-a procession to the Santuario dello Spirito Santo, celebration of mass, blessings and distribution of the special bread 'Pane di Burgisi'

-nightly concerts with traditional, popular and classical music programs and comedy plays

-agricultural meetings and tasting of local food products

-a final day parade with reenactment of ancient myths, musical and dance groups, examples of traditional rural culture and sleds pulled by oxen

Queen Anne's lace

With dainty circular clusters of tiny white flowers, Queen Anne's lace is one of the leading characters in Sicily's summer wildflower display. A single red flower sometimes seen at the center of the flat bloom head serves to attract pollinating insects. As the flower cluster matures and produces seeds, it rolls inward to form a rounded, tan-colored 'bird's nest' shape. This wild ancestor of the cultivated carrot, classed as a variable biennial, has slender, erect and hairy stems 1.5 to 3 ft (0.5 to 1 m) tall and a large taproot that smells like a carrot.

Scientific name: Daucus carota

Italian common name: Carota selvatica

English common name: Queen Anne's lace, Wild carrot

Red Valerian

Through spring into early summer, this showy native perennial displays dense clusters of small purple red to crimson or rarely white blooms along the upper stems. Much-branched and woody at the base, the plant grows 12 to 28 in (30 to 70 cm) tall. Red Valerian can be cultivated in the landscape, but it should be controlled to prevent spread into areas where it is not wanted. Grows on sunny roadsides, embankments and borders of fields and sometimes from old stone walls.

Scientific name: Centranthus ruber

Italian common name: Camarezza comune

English common name: Red Valerian