1) Flower 2) Mentzelia lindleyi 
Bartonia texana Bartonia verna Bartonia is a genus of the gentian family, tribe Gentianeae, subtribe Swertiinae. Members of this genus are called screwstems. Bartonia was also the name of a genus in the Loasaceae family, but all of those `Bartonia` species are now generally classified under the genus Mentzelia. ...
(Mentzelia) This is a small group of erect growing annuals and biennials that come from North and South America. Their foliage is waxy, cut or toothed and 2 to 3 inches in length. The pretty, fragrant flowers grow up to 5 inches across and can resemble those of the daisy, cactus or passiflora. They are a creamy white to a greenish yellow color; som...
[n] - annual grown especially for its fragrant golden nocturnal flowers
Mentzelia lindleyi noun annual grown especially for its fragrant golden nocturnal flowers