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
Ajuga chamaepitys

Ajuga chamaepitys - herbaceous annual Euro-Mediterranean, grows around the Mediterranean, in warm and dry, up to 1500 m altitude.

 
Arachis hypogaea - Peanut

Herbaceous annual. Stem branched, 40-60 cm high. Leaves compound, 8-12 cm long, oblong folio-obovata, margin entire. Flowers yellow, axillary. Peabody, grow underground, contains 1.3 seeds. 2n = 40.

 
Dianthus barbatus

Dianthus barbatus - perennial herb, native to southern Europe, grows at the edge of forests, bushes and meadows. Cultivated in parks and gardens as ornamentals.

 
Callistephus chinensis

Callistephus chinensis - annual species, 10-70 cm tall, native to Asia. Species cultivated as ornamental in gardens and parks.

 
Tulipa

Tulipa acuminata Vahl - The name of this species was introduced in 1813, when Martin Vahl, a professor of botany, including the list of plants grown in the Botanical Garden of Copenhagen.

Tulipa acuminata can grow to 40-50 cm high, leaves lanceolata, glauca. Flower solitary; tepale linear-lanceolata, acuminata; tepala is greater than 13 cm long.

 
Magnoliopsida
Symphoricarpos - Hurmuz

Shrubs decide, prostate or erect, 90-120 cm, originating in the U.S.. Buds scaly, 1.5 mm long. Leaves simple, opposite, short petiolate, 7 cm long. Raceme blossom. Campanulata Flowers in raceme children. Calyx tube slightly globos; Corola campanulata, 4-5 lobes. Fruit drupe, 1-1.5 cm in diameter, S. albus and S. occidentalis fruits white, pink-coral S. orbiculatus fruit. A fruit contains two seeds oblongata.

 
Salvia nemorosa

Salvia nemorosa - perennial species, native to southeastern Europe, with an area richer in Carpatico-Danubian region, increases the arid grasslands of the plains up to 1000 m altitude.

 
Saxifraga squarrosa

Saxifraga squarrosa - endemic sub-species of sub-Eastern Alps, grows on limestone rocks and debris, from 1200 m to 2500 m altitude.

 
Ranunculus ficaria

Ranunculus ficaria is a member of Buttercup Family.

 
Schinus molle

Schinus molle - evergreen tree, 3-15 m tall. Originally from Argentina, Bolivia and Peru where it grows from 0 to 2400 m altitude. Cultivated soil erosion, but also as ornamental species, or bonsai.

 
   Add to iGoogle
Last posts

Categories

Links