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Aureolaria grandiflora (Largeflower yellow false foxglove)
Bransford, W.D. and Dolphia

Aureolaria grandiflora

Aureolaria grandiflora (Benth.) Pennell

Largeflower Yellow False Foxglove, False Foxglove

Scrophulariaceae (Figwort Family)



USDA Native Status: L48 (N)

The false foxglove is named for its narrow, bell-shaped blossoms, which resemble those of the foxglove. It is a somewhat sprawling plant, growing to 5 feet tall, usually lower. Stems are often single, sometimes several from the base, slender, much-branched. Stems and leaves are smooth; leaves lack teeth or lobes (except perhaps the lower ones), and they taper to a sharp point. The flowers are 1 1/5-1 1/2 inches long on flower stems 1/8 inch long or more. The yellow bell flares into 5 almost equal lobes, the upper 2 joined for over half their length; the lower lip is 3-lobed. The plant grows as a parasite on oak trees along streams and in marshy areas (248).


From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Herb
Root Type: Tap
Leaf Complexity: Simple
Leaf Shape: Lanceolate
Leaf Venation: Pinnate
Leaf Margin: Lobed
Breeding System: Flowers Bisexual
Fruit Type: Capsule
Size Notes: Up to about 5 feet tall.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct


USA: AR , IA , IL , IN , KS , LA , MN , MO , OK , TX , WI

Growing Conditions

Light Requirement: Part Shade
Soil Moisture: Dry


Conspicuous Flowers: yes


Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

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Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 78 - (2020) Missouri Native Plant Society
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Aureolaria grandiflora in USDA Plants
FNA: Find Aureolaria grandiflora in the Flora of North America (if available)
Google: Search Google for Aureolaria grandiflora


Record Modified: 2022-11-23
Research By: TWC Staff

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