Leaflets 5-9, petiole 5- 13 cm long; Leaflets are ovoid or ovoid-obovate, with a length of1.5-4.5cm and a width of1-2.5cm. The apex is acute or obtuse, the base is round or broadly wedge-shaped, the edge is sharply serrated, the upper surface is dark green, hairless, the veins are sunken and wrinkled, the lower surface is grayish green, the midvein is prominent, and the reticulate veins are obvious and densely covered. Petiole and leaf axis are densely covered with villi and glandular hairs; Stipules are mostly adnate to petioles, free parts are ovate, the edges are glandular serrate, and the lower part is tomentose. ? [ 1]?
Flowers are solitary in leaf axils, or clustered, with ovate bracts, glandular hairs on the edges, and outer tomentose; Pedicel 5 -22 mm long, densely covered with villi and glandular hairs; Flower diameter 4-5.5 cm; 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. ?
The fruit is oblate, 2-2.5 cm in diameter, brick red, fleshy and smooth, with persistent sepals. The flowering period is May-June and the fruiting period is August-September.
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. In winter, snow-covered areas can tolerate the low temperature of -38℃ to -40℃, and areas without snow can tolerate the low temperature of -25℃ to -30℃, but they can't tolerate the dry wind in early spring. In areas with unfrozen soil and windy ground, branches are often blown dry by the wind; If the soil has been thawed and the roots continuously transport water and nutrients to the stems, the wind will not cause serious damage. Areas with dryness greater than 4 need irrigation conditions to develop normally.