WILD FLOWERS OF CALIFORNIA 



51 



Although the term evening primrose is generally given to the genus alluding 

 to the opening of the flowers towards evening and their pollination by nocturnal 

 moths, yet the larger number are morning primroses. 

 544. Sun Cups, Golden Oenothera ovata 



Eggs 



The beautiful Oenothera ovata now so frequent in the Bay region bids us 

 a cheery good morning as we go to work and as sweetly as we return in the 

 evening bids us good night. Hence it is appropriately called "Sun Cups" in the 

 morning and "Golden Eggs" in the evening. We are grateful to be able to report 

 that this species is able to withstand the annual burning in our suburban districts 

 without apparent diminution. 



545. 



Yellow Evening 

 Primrose 



Oenothera biennis 



546. 



547. 



White Evening 



Primrose 

 Beach Evening 



Primrose 



548. Desert Evening 

 Primrose 



Oenothera Californica 



Oenothera cheiranthifolia 



Oenothera trichocalyx 



549. 

 550. 



551. 



552. 



553. 

 554. 

 555. 

 556. 

 557. 

 558. 



559. 



560. 

 561. 



562. 



563. 



Rose-colored Evening Oenothera caespitosa 

 Primrose 



Winged Evening 

 Primrose 



Xuttal's Evening 

 Primrose 



Oenothera triloba 



Oenothera Nuttallii 



Oenothera heterantha 

 and vars. 



Oenothera graciliflora 

 Oenothera micrantha 

 Oenothera hirtella 

 Oenothera strigulosa 

 Oenothera dentata 

 Oenothera alyssoides 



and vars. 

 Oenothera scapoidea 



and vars. 

 Oenothera brevipes 

 Oenothera cardiophylla 



Oenothera andina 



Oenothera bistorta 

 var. 



and 



A tall and large flowered 

 species which greets us 

 almost everywhere we go 

 in some one or other of 

 its numerous forms. The 

 flowers exhale a strong 

 perfume at night or dur- 

 ing cloudy weather and 

 last but for a day. Fre- 

 quent in cultivation. 



Central and southern Cali- 

 fornia. 



In flower at all seasons. 

 Sands along the coast 

 line. 



On the warmest of sandy 

 deserts. Flowers large. 

 With or without stems. 



Eastern Sierras. 



Capsule winged. Eastern 

 Sierras, Sierra Valley. 



Plant and leaves resemble 

 the dandelion, but coarse 

 and pubescent. Eastern 

 Sierras. Alkaline flats. 



Similar to the last, but with 

 larger and nearly smooth 

 leaves. Capsule 4-winged. 

 In wet places. Eastern 

 Sierras. 



Small flowered species of 

 the coastal region and 

 elsewhere. 



Small flowered species to be 

 looked for on the eastern 

 side of the Sierras, enter- 

 ing from the desert where 

 they are not uncommon. 



Dwarf annual, 1 to 3 inches 

 high. To be looked for 

 in northeastern Califor- 

 nia. 



Southern California, sand 

 hills, near the sea. San 

 Diego. 



