Rock Lady
Holmgrenanthe petrophila
Color: Cream to pale yellow
Common name: Rock Lady
Latin name: Holmgrenanthe petrophila was Maurandya petrophila
Family: SCROPHULARIACEAE
Height: Low
Description: The plant is hairy; neither stems nor leaf stalks twining. The stem is erect to drooping/hanging from a point above. The calyx lobes are irregularly bristly with toothed margins. The corolla tube-throat is 20–24 mm.
Leaf: The round to kidney-shaped leaves are irregularly bristly with toothed margins.
Range: n Mojave Desert (Titus, Fall canyons, Death Valley region, Inyo Co.)
Habitat: Limestone crevices of canyons
Elevation: 1200–1400 m.
Flowering time: Apr–Jun
Notes: Holmgrenanthe petrophila, a dicot, is a perennial herb that is native to California and is endemic (limited) to California alone. It was included in the CNPS Inventory of Rare and Endangered Plants on list [1B.2] — rare, threatened, or endangered. I found this plant growing in crevices in the steep vertical walls in Titus Canyon, Death Valley National Park.
We have an online wildflower field guide that is designed to help you identify desert wildflowers by color, scientific name, region and common name. The pictures are sized to work on the iPod, iPhone, iPad and similar devices. With your iPod or phone you will easily be able to identify wildflowers while in the desert. Links for downloads are on the bottom of the Wildflower Field Guide page.
Photo tips: Most digital point-and-shoot cameras have a macro function - usually symbolized by the icon of a little flower. When you turn on that function, you allow your camera to get closer to the subject, looking into a flower for example. Or getting up close and personal with a bug. More on desert photography.
Mojave Desert Wildflowers - This book is the standard by which all other wildflower books are measured. The author, Jon Mark Stewart, has combined super photography with concise information. This book has an entire color page for each wildflower covered, with a discussion of the wildflower. 210 pages with 200 color photos. More...
What's Blooming Now - Check the Wildflower Reports
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