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Windy City Cactus: Eastern Prickly Pear Cactus

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When you think of Chicago, you probably don't think of sand dunes, prairies, or large oak trees.  Yet despite Chicago being the third largest city in the United States and heavily impacted by urban sprawl and industrial blight, there remains thousands of acres of greenspace with wetlands, open woods, sandy beaches...and some rather surprising flora. The pictures below were not shot in Arizona nor in Southwest California, but were in fact taken at the 63rd street beach on a recently restored sand dune near Hyde Park in Chicago, Illinois.  They are the eastern prickly pear cactus ( Opuntia humifusa ) . Figure 1:  Eastern prickly pear cactus, a native plant to the Chicago region and the only native cactus to the Great Lakes area.   The genus Opuntia is much more common out west where they have many different species, but in the Great Lakes and Midwest regions, the eastern prickly pear is the only native cactus.  It tends to be a little bit smaller than its western counterp
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Virginia Pineapple? The fascinating family of Bromeliaceae

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Who hasn't tried pineapple before?  It always seems to end up in fruit salads at family reunions, there's always someone in the crowed ordering "Hawain pizza", and the grocery stores always seem stocked full with showy pineapples displaying their rough-textured, compartmentalized skin with bizarre green leaves on top (Photo A).  To most people living in temperate regions such as most of the lower 48 United States, pineapples are nothing short of exotic and unusual - and not like anything we have growing in the wild on our landscape...or do we? Photo A:  A pineapple grows wild along a woodland edge in a tropical park in  Ecuador, South America. Pineapples are in the family Bromeliacea, which includes a large group of mostly tropical plants that are primarily  epiphytes - plants that grow on top of other plants (see photo B). Photo B: Bromiliads, shown in the center of this photo, are a common group of tropical epiphytes throughout rain forests and
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Natural Notes: Native Sunflowers

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September is the month of yellow, and for gardeners the easy-to-grow and popular choice of flower  is the Annual Sunflower ( Helianthus annuus ) which adorns garden borders and roadsides across the Chicago Region.  Numerous cultivars of this urban weed have been developed, and the source of commercial sunflowers and sunflower oil are derived from the Annual Sunflower (figure 1).  Figure 1:  Annual Sunflower growing  at the Taylor Street Farms community garden in Chicago.   But prior to European settlement, the Chicago region was largely absent of this tall and showy late-summer wildflower, whose range historically included the south-central United States into the plains and grasslands just to the east of the Rocky Mountains.  Instead, the prairie landscape of Northern Illinois would have been adorned with several species of native sunflowers and sunflower-like plants (figure 2).  Figure 2:  Although virtually absent of the notorious Annual Sunflower, the prairie landscape of N
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