portulaca

名词 portulaca:

1. a plant of the genus Portulaca having pink or red or purple or white ephemeral flowers

por.tu.lac.a

n.（名词）
Any of various fleshy plants of the genusPortulaca, especially P. grandiflora of South America, cultivated for its showy, colorful flowers that open only in sunlight. Also called rose moss
半枝莲：任一种马齿苋属 的肉质植物，尤指南美的 大花马齿苋 ，因其绚丽多彩的花朵而种植，花朵只在阳光下开放 也作 rose moss

来源：
Middle English
中古英语
from Latin portul3ca [purslane]
源自 拉丁语 portul3ca [马齿苋属植物]
from portula [diminutive of] porta [gate (from the gatelike covering of the seed capsule)] * see per- 2
源自 portula [] porta的小后缀 [大门（因其蒴夹的外皮与大门相似而得名）] *参见 per- 2