I. Morphological characteristics

The taproot is cylindrical or conical, partially branched and 4-10 cm long; The surface is white or light brown, with many whisker-like lateral roots, bent or partially broken, light brown or milky white; Cauline leaves are pinnately divided, curled, fragile, grayish green or orange; The stem is slender, branched, yellow-green, bent or partially broken, and the fruit is sparsely triangular near the top, with thin stalks and yellow-green.

A slight breath, a faint taste. The stems are slender, yellow-green, and easily broken. Stems erect, solitary or branched from the lower part. The basal leaves are rosette-shaped, and the big head is pinnately divided, with a length of 12 cm and a width of 2.5 cm. The top lobe is oval to oblong, 5-30mm long and 2-20mm wide, the side lobes are 3-8 pairs, oblong to oval, 5-15mm long, and the tip is gradually pointed, lobed or present.

Petiole length 5-40mm; Cauline leaves are narrowly lanceolate or lanceolate, with a length of 5-6.5 mm and a width of 2- 15 mm. The base is arrow-shaped and supports the stem, and the edge is notched or serrated. Root leaves are pinnately divided, curly, lanceolate after flattening, with large lobes at the top and coarse teeth at the edge; The surface is grayish green or yellow, and some are brown, papery and fragile; Cauline leaves are oblong or linear, with auricular stems at the base.

The raceme is terminal and axillary, and the fruit period is extended to 20 cm; Pedicel 3-8 mm long; Sepals oblong, 65438 0.5-2 mm long; Petals are white, oval, 2-3 mm long and have short claws.

The short pod is inverted triangle or inverted triangle, 5-8 mm long and 4-7 mm wide, flat, hairless, slightly concave at the top, with reticulate veins and residual short style. ; Style about 0.5 mm long; Pedicel is 5-15mm long. The seeds are small, obovoid, inserted on the pseudoseptum, 2 rows, rectangular, about 65438±0mm long and light brown. The flowering and fruiting period is from April to June.

Second, the growth environment

Shepherd's shepherd's purse is a cold-tolerant crop, which likes cold climate and can tolerate sub-zero temperature in severe winter.

The growth cycle is short, the leaves are tender, and sufficient water is needed. The water content of soil is 30%~50%, and the requirements for soil are not strict. Generally, it can be planted in loose soil with good drainage, but fertile and loose clay is better. The optimum pH value of soil is 6 ~ 6.7, which requires sufficient nitrogen fertilizer and sunshine to avoid wet and rainy weather.

Third, the distribution range.

Originated in Eastern Europe and Asia Minor, it is found all over the world. Mainly distributed in temperate regions of the world. Sex likes warmth but is cold-resistant. Wild and cultivated, born on hillsides, fields and roadsides.

Extended data

Variety classification

1, Chili

Shepherd's purse, also called shepherd's purse, is a local variety in Shanghai.

The plant collapses and grows, and the spreading degree is 18 cm. The leaves are light green, large and thick, with a length of 10 cm and a width of 2.5 cm, about 18 pieces. The leaf margin is pinnately lobed, nearly entire, the leaf surface is smooth and slightly fluffy, and the leaf color turns dark when exposed to low temperature.

This variety has strong cold and heat tolerance, early maturity and fast growth. It can be harvested 40 days after sowing, with high yield, good appearance and delicious taste. Its disadvantages are not strong enough fragrance, weak winter, early bolting, not suitable for spring sowing, and generally used for autumn planting.

2, loose leaf shepherd's purse

Loose-leaf shepherd's purse is also called shepherd's purse, slow shepherd's purse, mosaic shepherd's purse, lobular shepherd's purse, broken shepherd's purse and so on.

Plant collapse growth, spreading degree18 cm; The leaves are green, pinnately divided, the edge is deeply cut, long 10 cm, long and narrow, short and small, about 20 leaves. The leaves are green, pinnately divided, smooth and fluffy, and turn dark purple after low temperature.

This variety has moderate cold resistance, strong heat resistance and strong wintering ability, which is 10 ~ 15 days later than shepherd's purse. Strong aroma and delicious taste, suitable for spring cultivation.

Baidu encyclopedia-shepherd's purse (Cruciferae, Cruciferae)