Can you identify this species?

[johnywhy]

It's about 1/4" across. Found in the house.

 

[Soocom1]

Looks like a goat head.
Tribulus terrestris

 

[johnywhy]

Wow, could be! Mine is a bit different, but sure looks similar.

I wonder how it got tracked into the house, in urban LA.

Also called puncture vine because of its sharp thorny caltrop-like fruits that are prolific at the end of its growth cycle, it is known for "puncturing" human skin.

Yup.

Tribulus Terrestris Review, Effect on Testosterone and Cultural Uses