procumbent
Concise Oxford English Dictionary © 2008 Oxford University Press:
procumbent /prə(ʊ)ˈkʌmb(ə)nt/
▶adjective Botany (of a plant or stem) growing along the ground without throwing out roots.
– origin C17: from L. procumbent-, procumbere ‘fall forwards’, from pro- ‘forwards, down’ + a verb rel. to cubare ‘to lie’.
'procumbent' also found in these Oxford entries:

