Guava detection

Psidium guajava L. is a tree in the myrtle family, reaching a height of 13 meters; The bark is smooth, gray, and flaky; The tender branches have edges and are covered with hair. The leaf blade is leathery, oblong to elliptical, with acute or obtuse apex, nearly circular base, slightly rough upper part, hairy lower part, often sunken lateral veins, and obvious network veins; The petiole is 5 millimeters long. Flowers solitary or 2-3 arranged in a cyme; Calyx tube bell shaped, hairy, calyx cap irregularly split; Petals white; Stamens 6-9 millimeters long; The ovary is inferior, connate with the calyx, and the style is the same length as the stamen. Berry is spherical, ovoid, or pear shaped, with persistent sepals at the top. The flesh is white and yellow, and the placenta is enlarged, fleshy, and light red; Most seeds. Native to South America. Cultivated in various parts of southern China, commonly known as the wild species, it reaches the Anning River Valley in southwestern Sichuan to the north and is found in wasteland or low hills; Fruit for consumption; The leaves contain volatile oils and tannins, which are used for medicinal purposes and have effects such as stopping dysentery, hemostasis, and strengthening the stomach; The leaves are boiled to remove tannin, dried in the sun and used as tea leaves. They have a sweet taste and a heat clearing effect. Trees, up to 13 meters tall; The bark is smooth, gray, and flaky; The tender branches have edges and are covered with hair. Leaf blade leathery, oblong to elliptical, 6-12 cm long, 3.5-6 cm wide, apex acute or obtuse, base nearly circular, slightly rough above, hairy below, lateral veins 12-15 pairs, often sunken, network veins obvious; The petiole is 5 millimeters long. Flowers solitary or 2-3 arranged in a cyme; Calyx tube bell shaped, 5 millimeters long, hairy, calyx cap nearly circular, 7-8 millimeters long, irregularly split; Petals 1-1.4 cm long, white; Stamens 6-9 millimeters long; The ovary is inferior, connate with the calyx, and the style is the same length as the stamen. Berry is spherical, ovoid, or pear shaped, 3-8 centimeters long, with persistent sepals at the top. The flesh is white and yellow, and the placenta is plump, fleshy, and light red; Most seeds

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