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.
Tithonia rotundifolia - annual species, native to Mexico and Central Aerica, cultivated as ornamental species.
Dianthus barbatus - perennial herb, native to southern Europe, grows at the edge of forests, bushes and meadows. Cultivated in parks and gardens as ornamentals.
Herbaceous perennial, 50-80 cm tall, vigorous root-branched, cylindrical, 5-20 cm long and 1-2.5 cm in diameter. Strain fasciculated, erect, branched in upper parts. Leaves alternate, Terni-compound, the last segment with red ribbed, oblong-elliptic; foliolele are ongust-ovata or elliptic, 8-12 x 2-4 cm. 6.10 cm long stalks
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.
Herbaceous annual or perennial. Strain decumbenta - upward, often is wood based. Leaves alternate, entire or pinnate-sectors. Capital solitary and axillary. Involucre with bractei placed on 2-3 lines. Flowers tubular, orange. Ligula sterile flowers, yellow-orange, top with 4 teeth. Receptacle convex or flat. Acorn obovoide, densely-hairy.
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.
Planta voluble, originally from Indonesia and the Philippines. Cordiforme leaves, green with white spots, 6-8 cm long, thin stalks, 3-4 cm long, adult leaves oblong-or cordiforme lanceolata, 10-15 cm long, petiole 1.5-2 cm long.
Narcissus poeticus L.
Bulb ovoid, 3-4 x 1.5-2 cm, brown tunic. 4 basal leaves, limb 20-40 x 0,6-1,2 cm, green glauca; nervatiune parallel. Flower stalk 30-45 cm. Flower solitary, fragrant, perianth 5.7 cm wide; periantului tube 2-3 cm; tepale overlapping, reflection, white, ovat-orbiculare, 1.5-2.5 x 1.5-2 cm, top mucronata
Areca catechu L.
Popular names - English: Areca, Areca-nut, betel nut palm, French: cachou falling within subheading, Arequier, German: Betelnusspalme, Guam: pugua, India: Pan, Spanish: catechou hand, Yap: bu.
Areca catechu - originating in eastern Africa, southern Asia and the Pacific Islands. Grows in tropical climates at altitudes from 0 to 900 m.