Rape flower, the flower is a raceme, with four calyx, yellow-green, four corollas, yellow and cross. Flowers are like rice paper, light yellow and thin, with four petals, neatly surrounding the stamens, simple and simple. Petals are very delicate with fine lines.
Rape flower, alias Brassica, Latin name rape, native to Europe and Central Asia, is a Brassicaceae plant. The plants are straight and clustered, the stems are yellow and green, the basal leaves grow spirally, and the stem leaves are usually alternate without stipules. Flowers bisexual, radiation symmetrical, 4 petals, arranged in a cross; Stamens are usually 6.
Morphological characteristics of rape flowers
Herbs biennial, 30-90 cm tall; Stems stout, erect, branched or unbranched, hairless or nearly hairless, slightly frosty. Basal leaves are pinnately cleft, with large heads, round or oval top lobes, irregular curved teeth at the edges, and elliptical side lobes 1 to several pairs; The petiole is wide, 2-6 cm long, and the stem is supported at the base; The lower stem leaves are pinnately cleft, 6- 10 cm long, and the base is elongated to support the stem.
Racemes are umbrella-shaped at anthesis and then elongated; The flowers are bright yellow with a diameter of 7-10 mm; Sepals oblong, 3-5 mm long, erect, rounded at the top, transparent at the edge, slightly hairy; Petals obovate, 7-9 mm long, nearly emarginate at the top and clawed at the base.