Rosemary knowledge introduction
Answer:
Wikipedia Science Answer,
Rosemary, Latin name (Rosmarinus officinalis), is a dicotyledonous, Labiatae, rosemary genus plant shrub. Sex like warm climate, native to the European region and the Mediterranean coast of northern Africa. As far away as in the Cao Wei period has been introduced to China. Occasionally used in gardens.
From the flowers and leaves of rosemary can be extracted with excellent antioxidant antioxidants and rosemary essential oil. Rosemary antioxidant. Widely used in medicine, fried food, oil-rich food and all kinds of fats and oils to preserve freshness and quality; and rosemary essential oil is used in spices, air fresheners, ant repellents, and sterilization, insecticides and other daily-use chemical industry.
Morphological characteristics
Shrubs, up to 2 meters high. Stem and old branches cylindrical, cortex dark gray, irregularly longitudinal, blocky exfoliation, young branches 4-angled, densely covered with white stellate fine tomentum. Leaves often clustered on branches, very shortly stalked or sessile, leaf blade linear, 1-2.5 cm long, 1-2 mm wide, apex obtuse, base attenuate, entire, curled toward the back, leathery, slightly glossy and subglabrous above, densely white stellate tomentose below.
Flowers subsessile, opposite, a few aggregated at the tips of short branches in racemes; bracts small, stipitate. Calyx ovate-campanulate, ca. 4 mm, outside densely white stellate tomentose and glandular, inside glabrous, 11-veined, 2-lipped, upper lip suborbicular, entire or with very short 3 teeth, lower lip 2-toothed, teeth ovoid-triangular. Corolla blue-purple, less than 1 cm, sparsely pubescent outside, glabrous inside, corolla tube slightly projecting, limb 2-lipped, upper lip straight, 2-lobed, lobes ovoid, lower lip broad, 3-lobed, middle lobe largest, concave, decumbent, margin toothed, base constricted into a stalk, lateral lobes oblong.
Stamens 2 developed, inserted below the lower lip of the corolla, with a downward denticulate filament at the middle of the filament, the locules parallel, only 1 fertile. Style slender, much exceeding stamens, apex unequally 2-lobed, lobes subulate, posterior lobes shorter. Disk flat-topped, with equal lobes. Ovary lobes alternate with disk lobes. Fl. Nov.
Growth habit
Rosemary likes warm climate, but in Taiwan, China, the high temperature period of slow growth in the flatlands, winter temperatures without cold spells are more suitable for its growth, water supply due to the rosemary leaves themselves belong to the leathery, drought-resistant, so planting the soil to be sandy so that good drainage is more conducive to the growth and development of the soil, it is worth noting is that the rosemary is slow-growing, and thus the regeneration capacity is not strong. It is worth noting that rosemary is slow-growing, so the regeneration ability is not strong.