 University Hills, Irvine, Orange County, CA. 7-29-08. © Joan Avise |
Narrow-leaved milkweed Asclepias fascicularis Native to California Back to Apocynaceae of Orange County, California |
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 University Hills, Irvine, Orange County, CA 7-25-08. © Joan Avise |
 Limestone Cyn Wilderness Park, Trabuco Canyon, Orange County, CA 6-4-11. © Joan Avise |
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 With Cobalt Beetles, Riley Wilderness Park, Coto de Caza, Orange County, CA 5-15-10. © Joan Avise |
 Aliso and Wood Canyon Wilderness Park, Aliso Viejo, Orange County, CA. 9-23-11. © Peter J. Bryant |
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 Aliso and Wood Canyon Wilderness Park, Aliso Viejo, Orange County, CA. 9-23-11. © Peter J. Bryant |
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 Seed pod, UCI Arboretum, Irvine, Orange County, CA 10-7-06. © Joan Avise |
 Bursting seed pods, UCI Arboretum, Orange County 8-15-06. © Joan Avise |
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 With Monarch butterfly crysalis, San Joaquin Wildlife Sanctuary, Irvine, Orange County, CA 10-6-06. © Joan Avise |
 With Monarch butterfly, Huntington Central Park, Huntington Beach, Orange County, CA 8-12-06. © Joan Avise |
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 With ovipositing Monarch butterfly, Huntington Central Park, Huntington Beach, Orange County, CA 8-12-06. © Joan Avise |
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| Associated insects | |||
 Large Milkweed Bug, Oncopeltus fasciatus |
 Small Milkweed Bug, Lygaeus kalmii |
 Oleander Aphid, Aphis nerii |
 Cobalt Milkweed Beetle, Chrysochus cobaltinus |
 Monarch Butterfly, Danaus plexippus (male) |
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