I hope some of our California native plant experts can answer this question. I have a dozen or so plants identified as Calochortus monophyllus in flower here. My only accession of this species was seed from Robinetts in 1993, but I may have grown seed of those subsequently without recording it. Some of the plants in bloom are typical flowers with brown markings above the nectary and somewhat round petals, but others are entirely yellow with no markings, and the petals are more pointed. I read in the description that the markings can be faint and the petal shape variable, but I see no indication that markings can be entirely absent. The unmarked-flower plants are definitely not C. amabilis (which I also grow), and I'm pretty sure they're not C. pulchellus. I'm basing this on the distribution of the petal hairs. Are there populations of C. monophyllus without dark markings? Or is it possible that some of my plants are hybrids between monophyllus and amabilis? The two were growing in close proximity in my former bulb frames, and there were plenty of bees around. Jane McGary Portland, Oregon, USA