these days walking along hillside and green areas, sometimes in parks, there are quite many red and yellow fluffs blossoming on tree tops, adding some tenderness and senses of romanticism to summer. both are from the pea family and mimosa genus and are natives to south-east asia and southern china.
it is the persian silk tree that bores red flowers. it is said that back in ancient times, roman thought that silk products originated from this plant, thus the english common name. quoting from wikipedia, here are some characteristics of this small deciduous tree: flowers are produced throughout the summer in dense inflorescences. the individual flowers with small calyx and corolla (except the central ones), and a tight cluster of stamens 2–3 cm long, white or pink with a white base, looking like silky threads. they have been observed to be attractive to bees, butterflies and hummingbirds.
it is easy to spot this tree in summer. busy yellow fluffy flowers on big tall tree top, very popular among bees and insects and even birds. big thick tree trunks of mature ones wear big round flaky reddish scales.
quoting from wiki the botanic description of the blossoms: inflorescence a terminal or axillar, semi-globular cluster of 15 – 40 flowers. flowers, fragrant, terminating in five triangular lobes pubescent at the apex; filaments numerous, fused at the base, predominantly white to cream in colour, tipped with pale green, and becoming dark yellow with age.
合歡 persian silk tree (albizia julibrissin) – kingdom: plantae 植物界 | (unranked): angiosperms | (unranked): eudicots | (unranked): rosids | order: fabales 豆目 | family: fabaceae 豆科 | genus: albizzia 合歡屬 | species： a. julibrissin 合歡樹
大葉合歡/闊莢合歡 lebbeck tree (albizia lebbeck) kingdom: plantae 植物界 | (unranked): angiosperms | (unranked): eudicots | (unranked): rosids | order: fabales 豆目 | family: fabaceae 豆科 | sub-family: 含羞草亞科 | tribe: ingeae 印加樹族 | genus: albizzia 合歡屬 | species： a. lebbeck 大葉合歡