acaulescentyoudaoicibaDictYouDict[acaulescent 词源字典]
"Apparently stemless; having a very short stem, or a stem concealed in the ground", Early 19th cent.; earliest use found in American Journal of Science. From scientific Latin acaulescent-, acaulescens from a- + caulescent-, caulescens.[acaulescent etymology, acaulescent origin, 英语词源]