Where to obtain native California lupin seed?

Thought this would be simple. Wanted to on-line purchase some California golden poppy and California native lupin (not a stream-side variety, but one that handles limited moisture) seed, in bulk, a pound or so, to sow in the Sierra foothills. But have run aground on the lupin seed. Can't seem to find any except 'Arroyo,' which I understand needs more water than would be available. Any suggestions? Or am I off on the wrong track entirely?

In any case, thanks for listening,
Tom

Ps--If anyone is kind enough to respond, I would really appreciate it if you could also answer me directly: tmandres@aol.com