Combleaf Yellow False Foxglove

Media
Photo of combleaf yellow false foxglove showing flowers and leaves.
Scientific Name
Aureolaria pectinata (formerly Gerardia pedicularia)
Family
Orobanchaceae (broomrapes) (formerly Scrophulariaceae)
Description

A densely hairy, much-branching annual. Flowers on glandular-hairy stalks arising from upper leaf axils, long tubes with 5 lobes, light yellow, to 3 inches long, similar to the flowers of foxglove. Blooms August–September. Leaves opposite, pinnately divided into fernlike leaflets or small lobes.

Similar species: There are 3 species of Aureolaria in Missouri. The others are perennial and lack the delicately dissected leaves of this species. Smooth false foxglove (A. flava) is mostly in southeast Missouri; it lacks hairs. Big-flowered gerardia (A. grandiflora) is most commonly encountered and is scattered across the state, but apparently uncommon in northwest and southeast sections; it is densely short-hairy (and not glandular-hairy).

Size
Height: to 3 feet.
Where To Find
image of Combleaf Yellow False Foxglove distribution map
Scattered in the Ozarks.
Occurs in upland forests, savannas, glades, tops of bluffs, and banks of streams. Look for it in dry, open woods and on glades, in acid soils.
Missouri has about 2,005 native plant species and 765 introduced ones. Adding hybrids and subspecies, the grand total is about 3,200. That’s a lot of plants! Because plants are so important to human survival (and to all life on earth), botanists are continually busy increasing our knowledge.
Like many other members of the broomrape family, false foxgloves derive some of their nutrients by connecting their roots to those of nearby plants, commonly oaks, and parasitizing them. Bumblebees pollinate the flowers. Baltimore checkerspots use false foxglove species as larval host plants.
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About Wildflowers, Grasses and Other Nonwoody Plants in Missouri
A very simple way of thinking about the green world is to divide the vascular plants into two groups: woody and nonwoody (or herbaceous). But this is an artificial division; many plant families include some species that are woody and some that are not. The diversity of nonwoody vascular plants is staggering! Think of all the ferns, grasses, sedges, lilies, peas, sunflowers, nightshades, milkweeds, mustards, mints, and mallows — weeds and wildflowers — and many more!