12
Jul
2010
Polemonium caeruleum
Flowers | Magnoliopsida

Scientific Name - Polemonium caeruleum L.

Synonyms -

Popular names - Greek valerian, Jacob's Ladder

Distribution and Habitat - originating in the mountains of Europe, wet meadows, from 1500-2300 m altitude.

Description - herbaceous perennial, rhizome white. Stem ribbed, hollow, 30-90 cm high, glabra hairy-glandular at the base and tapered. Basal compound leaves, 10-40 cm, 17-23 segments lanceolate, alternate leaves caulinare. Cimoase inflorescences, corymb, stems pubescent, 2-3 mm, calyx actinomorf, lacini acute, 2-4 mm Corola actinomorfa, white tube, lacinii subrotunde, patents, 11 x 10 mm, purplish at the base with three ribs in darker color, filaments equal in length, pubescent. Blooms in July-August. Fruit pear-shaped capsule, 4-6 mm. Seeds elliptical, 2.8-3.2 x 1.2-1.4 mm, surface slightly shiny, dark purple. 2n = 18

Tolerances - temperate-20 C sites.

Requirements - well-drained moist soil in sunny or semi-shade exhibitions.

Propagation - by seeds sown in spring cold greenhouse.

Cultivars - 'Album' White flowers, 'Blue Pearl' cobalt blue flowers with yellow center.

Properties and Uses - species used as ornamental plants in gardens with spontaneous or rock gardens. Are planted at 30 cm distance between plants.


Photos
Top
See also
Top
Flowers
Ursinum Allium L. - Aliu of June, Ramsons, wild garlic

Herbaceous perennial, bulb. Oblung bulb. Leaves 2-3, lanceolata, margin entire, top acute, 30 x 3.6 cm. Flowers white, 6-20 hermaphrodite, in whole or pointed umbela backs, caduca; 6 tepale lanceolata, about 1 cm, 6 stamens, superior ovary, peduncle 2 cm. Blooms in May-June. Fruit capsule.

 
Silene diclinis

Herbaceous perennial calcifuga, dioica, 30 cm high, caespitosa, densely pubescent. Prostrata strain or upward. Leaves acute seriacee with obvious central rib, lower leaves 9 x 1.5 cm subspatulate to oblong-lanceolata, ribbed, those of the middle stem is elliptical to oblong-lanceolata, united at the base.

 
Verbascum blattaria

Verbascum blattaria - Herbaceous biennial, glabra bottom of the stem and glandular hairs towards the top, grows spontaneously in the desert and the hot side of cultivated fields, rivers and channels, up to 800 m altitude.

 
Aster amellus

Aster amellus - a species native to Europe and Asia, common in the collinear, dry and sunny at the edge boschetelor grow on limestone bedrock, from 0 to 800 m altitude.

 
Gentiana Crusader

Gentiana crucial - originated in southern, central and eastern Europe, it grows on sunny pastures on limestone soils, from 200 to 2000 m altitude.

 
Magnoliopsida
Nyssa sylvatica Marsh.

Dioecious tree, 25 meters high. Dark brown bark with deep cracks. Glabra or slightly hairy stalk, thin, red-brown, smooth; mugurele terminal 3-5 mm, nested, 6-8 scales visible, few pubescent and Chile, bicolori with red edges and the rest suprafatei green.

 
Epimedium alpinum

Rizomatoase two perennial species (Epimedium pubigerum and Epimedium alpinum) originating from southern Europe. Stem erect, to 25-38 cm tall, round, smooth, horizontal rhizome. Decidue or semi-evergreen leaves, cordiforme, acuminata, cilia-soirees, petiolate, 13 cm long, green becoming bronze in the fall, Pendente

 
Tilia platyphyllos - Large-leaved Linden

Tilia platyphyllos - thermophilic species, grows only in plain and low hills, Europe and western Asia.

Large-leaved Linden, used as decorative trees in parks, and street alignments.

 
Physostegia virginiana

Physostegia virginiana - perennial species, rhizomatic, native to North America, grows on wet pastures.

Physostegia virginiana - cultivated as ornamental species in parks and public gardens.

 
Nicotiana tabacum

Nicotiana tabacum - herbaceous annual, terofita. The product obtained is known cigarettes.

 
   Add to iGoogle
Last posts

Categories

Links