This Week in Iowa Nature

Turtles begin to hibernate in soft mud; snakes retreat to dens in burrows and rock crevices and under logs.

Jean C. Prior and James Sandrock, The Iowa Nature Calendar

Plant of the Week

Yellow flax

Linum sulcatum Riddell

other common names: grooved flax

Linum: the classical name for this well-known genus, which includes the species known in ancient times for supplying the fibers for making linen

Sulcatum: meaning “furrowed,” from the conspicuous ridges or grooves of the stem

Flax family: Linaceae

Photograph by Thomas Rosburg, Wildflowers of the Tallgrass Prairie: The Upper Midwest, Second Edition

An Interview with Thomas Rosburg: Part 2

What advice would you give to younger nature photographers? What are the particular challenges of being a botanical photographer?
I teach nature photography at Drake and Lakeside Lab, so there is a lot I could say. In short, I stress 3 components that make an image aesthetic – 1) understand your equipment and how it works, what to use when, correct exposure is critical; 2) understand the role of content in an image, especially elements of design and light quality; and 3) understand the key features of composition, for example, depth of field, perspective, and viewpoint.

Plants are very accessible, but photographing them can be challenging due to bad light and wind. There are several ways of dealing with these problems with the use of accessory equipment. Or quite often, getting out in the field early in the day can make the difference. There is a lot of truth to the saying “the early photographer gets the image.”

What are your favorite natural areas in Iowa and the Midwest? What areas do you return to constantly, and what’s your favorite newly visited area?
The state preserves are generally my favorite areas because they offer the best examples of our native ecosystems. These are the places that provide the best opportunities for plants and landscapes. On a larger scale, both the Loess Hills and Paleozoic Plateau landforms offer exceptional opportunities for nature photography.

Areas close to home are the places I return to repeatedly – Ledges State Park and Doolittle Prairie State Preserve are good examples. A newly visited area that has a lot of promise is Whiterock Conservancy in Guthrie County.

Thomas Rosburg, photographer, Wildflowers of the Tallgrass Prairie

Dickcissel - Art by Claudia McGehee

Dickcissel, Spiza americana

This colorful bird, which looks like a miniature meadowlark, sings a song that sounds like its name, “Dick-dick-cissel."

Come see Claudia next week at the Iowa Author Fair in Coralville, Iowa!
Date: Wednesday, October 13
Time: 6:30 PM - 8:30 PM
Location: Meeting rooms of the Coralville Public Library

Claudia McGehee, A Tallgrass Prairie Alphabet

Plant of the Week

June grass

Koeleria cristata (L.) Pers.

scientific name, 2008: Koeleria macrantha (Ledeb.)  Schult.

other common names: prairie June grass, crested hair grass, Koeler’s grass

Koeleria: in honor of George Ludwig Koeler, a late 18th-century German professor at Mainz and a student of grasses

Cristata: from Latin, meaning “crested”

Grass family: Poaceae (Gramineae)

Photograph by Thomas Rosburg, Wildflowers of the Tallgrass Prairie: The Upper Midwest, Second Edition

An Interview with Thomas Rosburg: Part 1

How long have you been photographing plants?
I obtained my first 35 mm SLR camera in 1977 as a graduation gift and started doing casual nature photography. In 1986, I switched to Nikon equipment and added several lenses to my gear. That’s when I started pursuing nature photography more seriously and began developing plant photography skills.

Why have plants kept your photographic attention for so long? What other subjects do you focus on?
About the same time, in 1986, I began the graduate work that eventually lead to my becoming a botanist. So plants have occupied my interest ever since I began serious photography. There are over 2000 species of plants in Iowa, so there is a huge list of potential plant subjects to photograph. I’d like to have a photographic record of every one of them. I shoot all nature subjects – landscapes, wildlife, macro subjects as well as plants. Because plants are always available, I tend to gravitate towards them when I am out doing photography and time is limited.

What has changed in the outdoor world since your first days of photographing these areas? What’s better, what’s worse?
One thing is that there are more public areas to go to and look for nature subjects. And at least some of them are still pretty good examples of Iowa’s native landscape. In part this is due to the increased emphasis on restoration work. So access to areas is surely better. On the down side – I see increasing problems with non-native, troublesome plant species that threaten the integrity of natural areas. Unfortunately, in some cases this problem is exacerbated by poorly designed and/or executed restoration work. 

Thomas Rosburg, photographer, Wildflowers of the Tallgrass Prairie

Plant of the Week

Bunchflower

Melanthium virginicum L.

other common names: Virginia bunchflower

Melanthium: from the Greek melas, meaning “black,” and anthos, meaning “flower”

Virginicum: meaning “Virginian” or “of Virginia”

Lily family: Liliaceae

Photograph by Thomas Rosburg, Wildflowers of the Tallgrass Prairie: The Upper Midwest, Second Edition