雞冠刺桐 cockspur coral-tree (erythrina crista-galli)

 

雞冠刺桐的花朵,紅豔而有個性,像南美女性。

花形特別。且撮述維基上的描述:

花為五數花,完全花,左右對稱……花冠為蝶形花冠,有五片花瓣,分別稱為旗瓣、翼瓣與龍骨瓣。旗瓣一片,位於花冠的最外面,五片花瓣中最大。翼瓣二片,细小,隱藏花萼裏,不易看到。龍骨瓣二片,偶而部分結合在一起,保護生殖器官。雄花器由十支雄蕊組成,雄蕊分成二束,為二體雄蕊,其中一束只有一支雄蕊,另一束則由九支雄蕊組成,這九支雄蕊的花絲合生在一起。

雞冠刺桐原生南美,阿根廷和烏拉圭都以她為國花。現在植物世界各地都有種植。落葉小喬木,是有剌的樹種(是以刺桐屬)。總狀花序。果實為莢果。

cockspur coral-tree

cockspur coral-tree is a small to medium sized deciduous tree. it is native to south america but now commonly grew in other parts of the world as ornamental plants. its flower is the national flower of argentina and uruguay.

The plant flowers in summer. the bright red bloom is profuse and dazzling, and botanically unique. allow me to quote the technical writing from wiki:

the red flower, arranged in inflorescences of the raceme type, is pentameric, complete, and of bilateral symmetry. its calyx is gamosepalous, like a little red thimble. the corolla, like that of other legumes, is butterfly-shaped; however, the largest petal, called the “standard”, is arranged in the lower part. the two of the petals called “wings” are so small that they are practically hidden within the calyx. the remaining two petals partially fuse together on occasion and form the flower’s keel or “carina”; this protects its reproductive organs. the androecium consists of ten stamens, one free and nine united by their filaments (gynostemial androecium). the unicarpel gynoecium is welded between the stamens like a knife in its sheath.

cockspur coral-tree fallen
落英讓大家留意到部分花形的獨特 the fallen blooms allow us to see part of the special structure

雞冠刺桐 cockspur coral-tree (erythrina crista-galli) – 植物界 plantae | 被子植物門 magnoliophyta | 雙子葉植物綱 magnoliopsida | 豆目 fabales order | 豆科 fabaceae family | 亞科 sub-family: 蝶形花亞科 faboideae | 族 tribe: 菜豆族 phaseoleae | 刺桐屬 erythrina genus | 種 species: 雞冠刺桐 e. crista-galli《維基》

相關前文 related post in the past – 《雞冠刺桐花 flower of cockspur coral tree

a cockspur coral-tree at the botanic garden 兵頭花園的雞冠刺桐
a cockspur coral-tree at the botanic garden 兵頭花園的雞冠刺桐
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