Publication: Icon. 5: 38, t. 461. 1799.

Origin:

selected vouchers: Not at WTU; WS?

Notes: Reported in WA & OR by FNA, often confused with Cenchrus longispinus.

FNA25: "Cenchrus spinifex is common in sandy woods, fields, and waste places throughout the southern United States and southwards into South America. It may be more widespread than shown in the northern portion of the contiguous United States because it has often been confused with C. tribuloides. Cenchrus spinifex differs from C. tribuloides in its glabrous or less densely pubescent fascicles, narrower inner bristles, and larger number of bristles. It has also been confused with C. longispinus, but differs in having shorter spikelets, fewer bristles overall, wider inner bristles, and outer bristles that are usually flattened rather than usually terete."

References: (none)