名詞 portulaca:

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

por.tu.lac.a

n.（名詞）
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
半枝蓮：任一種馬齒莧屬 的肉質植物，尤指南美的 大花馬齒莧 ，因其絢麗多彩的花朵而種植，花朵只在陽光下開放 也作 rose moss

來源：
Middle English
中古英語
from Latin portul3ca [purslane]
源自 拉丁語 portul3ca [馬齒莧屬植物]
from portula [diminutive of] porta [gate (from the gatelike covering of the seed capsule)] * see per- 2
源自 portula [] porta的小后綴 [大門（因其蒴夾的外皮與大門相似而得名）] *參見 per- 2