This study examined male and female fitness and the pattern of mating between two Mendelian petal pigmentation pattern phenotypes of Clarkia gracilis sonomensis and employed an explicit model combining these parameters to predict changes in allele frequencies.
The genus Clarkia is composed of at least 44 species that are annuals native to California (Lewis and Lewis 1955).
The genetic analyses of Rasmuson (1921) and Gottlieb and Ford (1988) demonstrated single-locus control of several pigmentation pattern characters in Clarkia.
Holtsford and Ellstrand (1990) found no effect of selfing on germination or survival to reproduction but did observe reduced fecundity in the inbred offspring of Clarkia tembloriensis.
The California poppies I seeded on my hillside are releasing their little blue-green sprouts and the seeded clarkias
in the little field areas have begun their journey to adulthood when they'll show off their multihued pink flowers.
Later in spring, bright pink and red clarkias
, several types of lupines and shimmering white Matilija poppies bloom among soft green mounds of native grasses, offering a more subdued but still appealing effect.
Aside from the pools, Yahi's attractions include a remarkable number of brodiaea species-plus lupines, clarkias, foothill and ftying-pan poppies, Chinese houses, bird's-eye gilia, shooting stars, delphinium, lomatium, and tarweed, as well as buttercup, monkey flower, and linanthus species.
You'll see riotous mixed bouquets, upslope and down, including delphiniums, phacelias, foothill poppies (Eschscholtzia caespitosa), Plummer's mariposa lilies, many different lupines, nemophila, clarkias, Chinese houses, and starry pastel swaths of delicate linanthus.
are wonderful native annuals that everyone should try because they come up so easily from seed.
The bloom sequence starts in late winter with milkmaids and shooting stars and progresses through a multicolored myriad of species to the pink lewisias of midseason and the wild phlox and clarkias
Or take the ephemeral Clarkias
, blooming their heads off in pink and lavender for a glorious, if quickly passing, moment in spring.
Godetia (goh-DEE-shee-ah) comprises a subgenus of Clarkia
and is sometimes listed separately.