Monarch Amazonvine
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Monarch Amazonvine
P Introduced Photo: Thingnam Girija
Common name: Monarch Amazonvine
Botanical name: Stigmaphyllon emarginatum    Family: Malpighiaceae (Barbados cherry family)
Synonyms: Stigmaphyllon periplocifolium, Stigmaphyllon haitiens

Monarch Amazonvine is a Twining shrubs; young branches white-silky. Golden yellow flowers are arranged in more or less elongate racemes or umbel-like corymbs. Flower-stalks are 1-2 cm long; bracts and bracteoles lanceshaped, about 1 mm long. Flower-buds are spherical, 3-4 mm across. Sepals are ovate, pointed, 1.5-2 x 2-2.5 mm; glands 5, situated below calyx. Petals are clawed, 4 nearly equal, 1 smaller, yellow; limbs nearly round, entire or crenulate along margins, 6-9 x 4-5 mm. Stamens are 6 opposite to petals fertile, 4 sterile; filaments about 2 mm long; anthers 1-1.5 mm long. Ovary white-woolly; styles about 2 mm long; stigma leaf-like. Leaves are elliptic-oblong or linear, shallowly heart-shaped or entire at base, notched or ending abruptly in a small distinct point at tip, 1-14 x 0.5-9.5 cm, leathery, hairless on both surfaces. Leaf-stalks are 0.8-2.5 cm long, with 2 glands where the stalk meets the leaf base. Fruit is a samara, 16-20 x 7-9 mm. Monarch Amazonvine is native to Tropical America. Flowering: May-July.

Identification credit: J.M. Garg Photographed in Lodhi Garden, Delhi.

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