Stress treatments were also found to have no significant effect on the expression of inbreeding depression in Gaillardia pulchella, another self-incompatible annual species (Heywood 1993).
Biparental inbreeding depression in the self-incompatible annual plant Gaillardia pulchella (Asteraceae).
cerifera (wooly paperflower), Echinocereus reichenbachii (lace hedgehog cactus), Paronychia jamesii (James' nailwort), Aristida purpurea (three-awn grass), Thelesperma filifolium (greenthread), Mentzelia nuda (sandlily), Sporobolus (dropseed), Plantago (plantain), and Gaillardia pulchella
For example, it lists eight flowering annuals with moderate water needs: annual vinca (Catharanthus roseus), calendula, celosia, Gaillardia pulchella
, geraniums, lantana, portulaca, and verbena.