Bladderpod. Cleome isomeris, Caper Family ( Capparaceae ), Bladderpod. Also Called: Bladderpod Spiderflower, Isomeris arborea, Isomeris arborea var. angustata, Isomeris arborea var. globosa, Isomeris arborea var. insularis. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. Isomeris arborea is an erect, rounded and profusely-branched, shrub. The leaves are alternate, entire, petiolate and trifoliate with leaflets that are oblong-elliptic, to 1-3/4" long. The yellow flowers are in dense terminal racemes to 12" long. The calyx is four-cleft, the green sepals fused in the basal half. There are four petals 1/2" long, six yellow stamens that are long, with a pistil and a short style that is sometimes aborted in the bud. The fruit is a large, swollen elliptic capsule to 2" long with a pointed tip that contains smooth seeds and hangs down. Bladderpod blooms year round. Hummingbirds, butterflies and bees collect nectar from the flowers. Quick Notes: Height: Up to about 3 - 5 feet tall and 3 - 5 feet wide. Flowers: Yellow flowers in dense terminal racemes up to 12" long. The calyx is four-cleft, the green sepals fused in the basal half. There are four petals 1/2" long, six yellow stamens that are long exserted, and a pistil with a short style that is sometimes aborted in bud. Flowering Time: Mainly February - June. Fruit: A large, swollen elliptic capsule to 2 inches long with a pointed tip that contains smooth seed. Leaves: Alternate, entire, petiolate and trifoliate with leaflets that are oblong-elliptic, up to about 3/4 to 1 inch long, with small, pointed tips. Found: The USDA claims it is native to the USA (AZ, CA). In Arizona it is native to Maricopa County. Hardiness: USDA Zone 8b: to -9.4 �C (15 �F) USDA Zone 9a: to -6.6 �C (20 �F) USDA Zone 9b: to -3.8 �C (25 �F) USDA Zone 10a: to -1.1 �C (30 �F) USDA Zone 10b: to 1.7 �C (35 �F) USDA Zone 11: above 4.5 �C (40 �F) Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline) 8.6 to 9.0 (strongly alkaline) Sun Exposure: Full Sun Elevation: 800 - 4,800 feet. Habitat: Does best in coastal bluffs, hills, desert washers, flats. An ideal xeriscape landscape plant in Arizona. Miscellaneous: Shrub Photos Taken February 13, 2008. Glendale, Arizona Xeriscape Demonstration Garden.

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