25
Sep
2010
Commelina communis
Flowers | Liliopsida

Scientific Name - Commelina communis L.

Popular names - erba miseria, asiatic dayflower.

Distribution and Habitat - grows naturally in East Asia, prefer shade and moist forests in 0-6000 altit.

Description - annual species, 30-40 cm stem prostrata and zigzag hairy. Leaves alternate, with guaina ± cylindrical, lamina lanceolata, 1-2 x 3-8 cm round basis. Flowers hermaphrodite, zigomorfe, three-apple, surrounded by a shoulder bracteiforma; separator arranged alternate petals green, 2 blue, heart-spatula, and the 3rd lower. Blooms in July-September. Biloculara capsule, elliptic, 5-7 mm. Two seeds in each box, yellow-brown, 2-3 mm long. 2n = 90

Requirements - prefer shady sites with moist soils and rich in humus.

Propagation - by seed or stem cuttings.

Diseases and Pests - Kordyana commelinae, Phyllosticta commelinicola, Physalospora commelinae, Ustilago commelinae, Lema coronata, Aphis commelinae.

Properties and Uses - a cultivated ornamental species, tends to sponteinza in ruderal environments.

Curiosity - can become invasive in NE China, causing serious problems.

Genus name Linne dedicated botanists and Johan Caspar Commelin; 'communis' means 'growing in colonies, groups'.

Commelina genus species is often confused with species of the genus Tradescantia, both belonging to the same family, Commelinaceae. Commelina flowers genre has two large petals and a small petal, flowers from three species of Tradescantia petals are equal in size.

Photos
Top
See also
Top
Flowers
Saxifraga squarrosa

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

 
Lychnis flos-cuckoo - cuckoo flower

Lychnis flos-cuckoo - perennial species, native to Europe, Siberia and the Caucasus, grows spontaneously in grassy places, wet the edge of ponds, through meadows and wet meadows, from 0 to 1600 m altitude.

 
Eschscholzia californica - California poppy

Perennial species in the area of origin, in other regions is annual, reaching up to 5-60 cm high, glabra, glauca. Stem branched, decumbenta. Leaves basal and caulinare, green-glauca, sectors, lobes linear or obluongi, glabra. Floriferi buds are obconici pick. Flowers solitary, peduncle of 5-15 cm long, calyx acute or acuminata, glabru, glauca; Corola consisting of 4 petals yellow-orange, 5 cm long, numerous stamens.

 
Tribulus terrestris - the old woman's teeth

Herbaceous annual, prostrata, with branches 80 cm long. Paripenat-compound leaves, 4-8 folio, oblong folio, 4.12 x 4 mm. Sepa 2-4 mm long. Petals 3.6 mm long. Stigma pyramidal-elongated. Blooms in May-September.

 
Salpichroa organifolia

Salpichroa organifolia - perennial, rhizomatic and subfrutescenta. Hailing from South America, naturalized and naturalized French Atlantic coast, around the Mediterranean, Corsica and Spain wet substrates increases from 0 to 600 m altitude.

 
Liliopsida
Gymnadenia conopsea

Gymnadenia conopsea - can be planted in parks and public gardens, on lawns or grassy rocks.

Gymnadenia conopsea - Gymnadenia genus name comes from the Greek words 'gymnos' = empty and 'Aden' = gland.

 
Hedychium coronarium - white ginger

Herbaceous perennial, 1-1.5 m inaltme, fleshy rhizome. Leaves alternate, decidue, language sessile 28-40 x 4.7 cm, narrow elliptic, apex long-acuminata, the acute glabra on top, the furry bottom steps. Flowering 4.10 x 3.6 cm. Bractei persistent ovat-triangulation, green, 4-7 x 2-4 cm, margins membranous.

 
Bulbine frutescens

Juicy perennial species, rizomatoasa. Leaves basal, linear, cylindrical, fleshy, 10-15 cm long. Floral stem is 45 cm long. Blossom flowers made up of 40-50 cm, arranged in Raceme 15-30 cm long.

 
Hyacinthus orientalis

Hyacinthus orientalis - bulbous perennial with linear to lance-shaped, channeled, bright green leaves, 15-35 cm long. Is classified as an ornamental, and is native to the Mediterranean region. The essential oils found only in the flowers have been used in cosmetics and soap fragrances.

 
Allium cepa L. - onion

Herbaceous biennial, bulb white, gold, red or purple, 5-8 x 3.10 cm. Leaves persistent, 4-10, fistula, 30-100 x 3-20 mm. Umbela blossom persistent, erect, compact, rear obsolete, ovata, ± equal, leading to acute acuminata.

 
   Add to iGoogle
Last posts

Categories

Links