Question 1
This sprawling or climbing annual has round, shield-shaped, slightly waxy leaves on long stalks joined at the centre, and bright orange, yellow or red trumpet-shaped flowers with a long backward spur that holds nectar. Every part has a hot, peppery taste, and the leaves, flowers and green seed pods are all eaten in salads. 
Question 2
This water plant of Asia and northern Australia holds its large pink or white bowl-shaped flowers, and its round, shield-like leaves, high above the surface on stiff stalks. The leaves shed water and dirt completely, staying spotless. It is a religious symbol of purity rising from muddy water, and its flat-topped seed head is a florist's favourite. 
Question 3
This low, creeping wild plant of damp meadows and lawns has small, glossy, cup-shaped, bright yellow flowers of five overlapping petals, so shiny they look varnished. Children hold one under a friend's chin to see a yellow glow reflected. The whole plant is bitter and poisonous, so grazing animals leave it alone. 
Question 4
This vigorous, thorny climbing plant of warm regions drapes walls and fences in sheets of vivid magenta, purple, orange or white. The colour comes not from the flowers, which are tiny, white and tubular, but from three large papery bracts, like coloured tissue paper, wrapped around each cluster of them. 
Question 5
This trailing or mounding bedding and hanging-basket plant, from South America, is smothered all summer in soft, funnel-shaped, five-lobed flowers with a wide, flat face, in almost every colour and often striped, veined or edged. The stems and leaves are slightly sticky to the touch, and the flowers droop and close in rain. 
Question 6
This airy annual has feathery, thread-like leaves and simple, saucer-shaped flowers with a small yellow centre and eight broad, slightly notched petals in white, pink or crimson, on long slender stems that sway in the wind. It self-seeds readily and flowers on into autumn. 
Question 7
This spring bulb bears a smooth, cup-shaped flower of six waxy segments on a single bare stem, in almost every colour and often striped or feathered. Wild forms came from Central Asia and Turkey. In 1630s Holland, bulbs of prized kinds briefly sold for the price of a house before the market collapsed. 
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