In some of the valleys having an outlet to the south the flora is partly peculiar to the American desert, and such species as Purshia tridentata, D.C., and Artemisia tridentata, Nutt., and species of Gilia, Aster and Erigonum are found that are not met with elsewhere.
In favourable situations and seasons some of the very hardiest, as Silene pendula, Saponaria, Nemophila, Gilia, &c., may be sown in September or October, and transplanted to the beds or borders for very early spring flowering.
Gilia achilleaefolia: hardy, 2 ft., deep blue; in large globose heads.
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