1, different families and genera
1, knotty gourd: winter melon genus
2, loofah: loofah genus
2, the appearance of the different
1, knotty gourd: stems are yellow-brown bristles and villous, angular grooves. Petiole stout, 5-20 cm long, yellow-brown hirsute and villous; leaf blade reniform suborbicular, 15-30 cm wide, 5-7 lobed or sometimes mesophyllous, lobes broadly triangular or ovate, apex acute, margin denticulate, base y cordate, curved notched spreading, suborbicular, 2.5-3.5 cm deep and wide.
Surface dark green, slightly rough, sparsely pilose, gradually shed with age, becoming nearly glabrous; abaxial surface rough, gray-white, coarsely hirsute, veins slightly elevated on the abaxial surface of the leaf, densely hairy. Tendrils 2-3-manifold, hirsute and villous.
2, lucerne: stem and branches rough, furrowed, puberulent. Tendrils slightly stout, pubescent, usually 2-4 manifold. Petiole rough, 10-12 cm long, with inconspicuous grooves, subglabrous; leaf blade triangular or suborbicular, ca. 10-20 cm long and wide, usually palmately 5-7-lobed, lobes triangular, the middle longer, 8-12 cm long.
Top acute or acuminate, margin serrate, base y cordate, curved emargination 2-3 cm deep, 2-2.5 cm wide, dark green, scabrous, warty dots above, light green, pubescent below, veins palmate, white pubescent.
Three, distribution
1, knapweed: native to southern China, Guangdong, Guangxi commonly cultivated. It has a long history of cultivation all over Lingnan, and Hainan, China, also has a long history of cultivation. Festival melon like high temperature, the length of sunshine requirements are not strict. Like moist, do not tolerate flooding. Melon on the soil adaptability is wider, the soil pH to neutral or slightly alkaline is good.
2, lucerne: China's southern and northern parts of the universal cultivation, but also widely cultivated in the temperate and tropical regions of the world. There are wild in southern Yunnan, but the fruit is shorter and smaller.
Baidu Encyclopedia - Setsuna
Baidu Encyclopedia - Loofah