On 6/23/13 1:17 PM, Danny D. wrote:
Anyone ever had an infestation of acres of these yellow plants?
http://www5.picturepush.com/photo/a/...g/13393168.jpg

They seem to be taking over my otherwise barren dry hillsides:
http://www1.picturepush.com/photo/a/...g/13393169.jpg

The plant has a strange-looking stalk:
http://www2.picturepush.com/photo/a/...g/13393210.jpg

And very low-lying leaves:
http://www4.picturepush.com/photo/a/...g/13393207.jpg

The climate is San Francisco bay area, very dry, poor Franciscan
sediment soil, and lots and lots and lots of sunlight.


It looks like mustard to me. Wild mustard is found extensively in
California, turning the hills near my house bright yellow in the spring.

--
David E. Ross
Climate: California Mediterranean, see
http://www.rossde.com/garden/climate.html
Gardening diary at http://www.rossde.com/garden/diary