The common tiger thorn plum around us is also a kind of succulent plant

Tiger thorn plum: also known as iron begonia, is a trailing shrub plant. Stem much branched, 60-100 cm long, 5-10 mm in diameter, longitudinally angled, densely hard and pointed conical spines, spines 1-1.5 cm long, 0.5-1.0 mm in diameter, often arranged on ridges in 3-5 rows, showing rotation. Leaves alternate, usually concentrated on shoots, Obovate or oblong-spatulate, entire. Inflorescences 2 or 8 constitute dichotomous compound inflorescences, born in upper leaf axils of branches; stalk base with 1 membranous bract, 2 bracts, kidney orbicular, involucral bract bell-shaped, margin 5-lobed, yellowish red. Several male flowers and 1 female flower, often enclosed in involucral bracts. Capsule trigonous-ovate, seeds ovoid, ca. 2 mm in diam., grayish brown. Flowering and fruiting for the whole year. Native to Madagascar in Africa and widely cultivated in the tropics and temperate zones of the Old World; cultivated in both the north and south of China and commonly found in parks, botanical gardens and courtyards.

Rosa przewalskii is a trailing shrub. Stems much branched, 60-100 cm long, 5-10 mm in diameter, longitudinally angled, densely hard and pointed conical spines, spines 1-1.5 (2.0) cm long, 0.5-1.0 mm in diameter, often arranged on ridges in 3-5 rows, showing rotation. Leaves alternate, usually concentrated on shoots, Obovate or oblong-spatulate, 1.5-5.0 cm long and 0.8-1.8 cm wide, apex rounded, apiculate, base attenuate, entire; sessile or subsessile; stipules subulate, 3-4 mm long, very slender, caducous. Inflorescences 2. 4 or 8 constitute dichotomous compound inflorescences, born in upper leaf axils of branches; compound inflorescences stipitate, 4-7 cm long; each inflorescence base with a stalk 6-10 mm long, stalk base with a membranous bract, 1-3 mm long, 1-2 mm wide, upper subtruncate, margin with minute red tip

Bracts 2, kidney-orbicular, 8-10 mm long, 12-14 mm wide, apex round and apiculate, its part attenuate, sessile, bright red above, reddish below, close to inflorescence; involucral bracts campanulate, 3-4 mm high, 3.5-4.0 mm in diam., margin 5-lobed, lobes piano-shaped, distal fimbriate long hairs, and incurved; glands 5, reniform, ca. 1 mm, ca. 1 mm wide, yellowish red. Male flowers several; bracts filiform, apex pilose; female flowers 1, often not protruding from involucral bracts; ovary smooth glabrous, often enclosed in involucre; styles 3, connate below middle; stigmas 2-lobed. Capsule trigonous-ovate, ca. 3. 5 mm, ca. 4 mm in diam., smooth glabrous, divided into 3 mericarps at maturity. Seeds ovoid, ca. 2.5 mm, ca. 2 mm in diam., grayish brown, with minute verrucous spots; no caruncle. Flowering and fruiting for the whole year.

Cutting substrate is used for cutting nutrient soil or river sand, peat soil and other materials. Due to the limited conditions, it is difficult to get the ideal cutting substrate for family cutting. It is recommended to use a prepared and sterilized cutting substrate; medium and coarse river sand is also recommended, but rinse with clean water several times before use. Do not use sea sand and river sand in saline-alkali areas, they are not suitable for the growth of flowers and plants. Prunus przewalskii is mainly propagated by cuttings. Cuttings can be cut throughout the growing period, but May-June is the best, with a high survival rate, and cuttings of Prunus mume are the most likely to survive. Select sturdy branches, about 10 cm to 15 cm long (with 3-4 leaf nodes), dry the white pulp from the cut, coat it with plant ash, and dry it in a cool place for 2 to 3 days, so that the wound is dried and then inserted into the plain sand, watered thoroughly, and then watered less. when the basin soil is slightly dry, it can take root after about 50 to 60 days.