Common name: Small Balsam
Scientific name: Impatiens parviflora 小花鳳仙花、小花勿碰我
Genus: Impatiens 鳳仙花屬
Family: Balsaminaceae 鳳仙花科, balsam family
Origin: Neophyte (established after 1500 AD). It is a native of central Asia. It was introduced to Britain in 1830 and was record in the wild in 1848.
Date: 19th Aug
[363] An erect, glabrous annual, can reach up to 1 m.
[365] Flowering now.
[353] Leaves 5-15 cm, with more than 20 teeth on each side. (vs leaves 5-12 cm, with 6-15 teeth on each side in Impatiens noli-tangere 水金鳳、輝菜花, touch-me-not balsam)
[355] Underside of the leaf.
[354_1] Top view showing where the inflorescence and leaves arise.
[356_1] Stem glabrous, zigzag shaped. Leaves alternate.
[357_1] A pair of glands? at the leaf axil. Inflorescence (the left thinner one) also arises from the leaf axil (axillary inflorescence).
[359_1] Base of stem swollen, with roots could be seen above.
[337_2] Bracts.
[344_1] Side view of the flower and also showing different stages of flower buds and the inflorescence.
[337_1] Sepal spur is straight, not curved. Green lateral sepals, yellow dorsal petal, upper petal and lower petal could be seen.
[347_1] Anther view of the male stage of flower. Flowers small, 5-15 mm, pale yellow.
[341_1] Upper view of the flower, the 2 green lateral sepals, yellow dorsal petal with green midrib (standard petal) and 2 lower petals could be seen.
[348_1] Anther view showing the the 2 green lateral sepals, the lower sepal with straight sepal spur, yellow dorsal petal with green midrib (standard petal), 2 upper petals and 2 lower petals.
[334_1] Androecium could be seen above. This is the male stage of the flower.
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[335_1] This is a flower of female stage. Androecium had dropped and gynoecium (stigma and style) could now be seen.
[340_1] Developing capsule.
[350_1] Capsule slightly swollen.
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