Aureolaria |
Aureolaria levigata |
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false foxglove, yellow false foxglove |
entire-leaf yellow false foxglove |
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Habit | Herbs, annual or perennial; hemiparasitic, caudex knotted. | Perennials. | ||||||||||||||||||||||||
Stems | erect, not fleshy, glabrous, sparsely to densely puberulent, densely villous, or glandular-pubescent. |
simple or branched, 4–25 dm, glabrous, not glaucous. |
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Leaves | basal and cauline, opposite; petiole present; blade leathery, not fleshy, margins entire, pinnatifid, or 2-pinnatifid. |
petiole 2–3 mm; blade lanceolate to oblong, 15–127 x 4–34 mm, margins entire or serrate, rarely (proximal) pinnatifid, surfaces glabrous. |
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Bracts | leaflike, 8–15 x 2–5 mm, margins entire. |
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Inflorescences | terminal, loose racemes; bracts present. |
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Pedicels | present; bracteoles absent. |
1–3 mm, glabrous. |
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Flowers | sepals 5, calyx radially symmetric, campanulate or turbinate, lobes linear to deltate, sometimes lanceolate; petals 5, corolla yellow, bilabiate, campanulate, abaxial lobes 3, adaxial 2; stamens 4, didynamous, filaments glabrous or ciliate, anthers villous; staminode 0; ovary 2-locular, placentation axile; stigma truncate. |
calyx glabrous, tube campanulate, 5–7 mm, lobes lanceolate to narrowly deltate, 5–6 x 2–3 mm, margins entire; corolla tube 19–30 mm, glabrous, lobes 9–11 x 11–16 mm; filaments 12–20 mm, ciliate; style 21–29 mm. |
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Capsules | dehiscence loculicidal. |
ovoid to pyriform, 8–12 x 6–7 mm, glabrous. |
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Seeds | 300–500, brown to blackish, ovoid to deltoid, wings present (absent in A. pedicularia). |
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x | = 14. |
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2n | = 26. |
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Aureolaria |
Aureolaria levigata |
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Phenology | Flowering Jul–Oct. | |||||||||||||||||||||||||
Habitat | Rocky wooded slopes, mixed hardwoods. | |||||||||||||||||||||||||
Elevation | 10–1800 m. (0–5900 ft.) | |||||||||||||||||||||||||
Distribution |
e North America; n Mexico; c North America |
AL; GA; KY; MD; MS; NC; OH; PA; SC; TN; VA; WV |
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Discussion | Species 8 (7 in the flora). Molecular phylogenetic analysis supports a close relationship of Aureolaria with Agalinis, Esterhazya J. C. Mikan, and Seymeria (J. R. Bennett and S. Mathews 2006). Further evidence for these relationships is similarities in floral morphology among these genera. Aureolaria greggii (S. Watson) Pennell occurs broadly throughout northern Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Aureolaria levigata is disjunct in southwestern Mississippi. The affinity between the floras of the Appalachian and Ozark mountains and the loess hills of southwestern Mississippi is well documented (H. R. Delcourt and P. A. Delcourt 1975). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 17, p. 555. | FNA vol. 17, p. 558. | ||||||||||||||||||||||||
Parent taxa | ||||||||||||||||||||||||||
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Synonyms | Gerardia levigata | |||||||||||||||||||||||||
Name authority | Rafinesque: New Fl. 2: 58. (1837) | (Rafinesque) Rafinesque: New Fl. 2: 59. (1837) | ||||||||||||||||||||||||
Web links |