Sepals are ovate-lanceolate, the apex is caudate, usually pinnate lobes expand into leaves, with sparse hairs at the top and dense hairs and glandular hairs at the bottom; Petals obovate, double to semi-double, fragrant, purple to white; Style free, hairy, slightly out of calyx tube mouth, much shorter than stamens.
Roses are flourishing, with many flowers in one bud. After the branches are cut, the flowers will wither quickly. So roses are not suitable for fresh cut flowers. In addition, most rose varieties have strong rose fragrance, which can be used to extract rose essential oil.
Extended data:
Growth habit
Roses like sunny, cold-resistant and drought-tolerant, and loose and fertile loam or light loam with good drainage. They don't grow well in clay loam, and they don't bloom well. It should be planted in a well-ventilated place away from the wall to prevent sunlight from reflecting, burning the bud and affecting flowering.
Roses are masculine plants, which are rich in color and fragrance in sunny conditions. If the sunshine is less than 8 hours in the growing season, it will grow white without flowering. The requirement for air humidity is not strict, and rust and powdery mildew will occur at low temperature and high humidity;
The flowering period requires the air to have a certain humidity; When drying at high temperature, the oil yield will decrease. Roses do not require high pH value of soil, and can grow normally from slightly acidic soil to slightly alkaline soil.