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Northern Prairie Wildlife Research Center

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Aquatic and Wetland Vascular Plants of the Northern Great Plains

Agalinis Raf. -- Gerardia

Shallowly fibrous-rooted annuals, often hemiparasitic; foliage dark green and tending to blacken upon drying; stems slender, erect, branched, 4-angled. Leaves opposite or subopposite, sessile, often with fascicles of smaller leaves in the axils, linear to linear-lanceolate, sparingly to conspicuously scabrous on the upper surface. Flowers solitary from the axils of upper leaves, on slender pedicels; calyx nearly regular, 5-lobed, campanulate in flower to hemispheric in fruit, somewhat accrescent, lobes broadly triangular at the base with an acuminate tip; corolla 5-lobed and weakly bilabiate, reddish to pinkish-purple, obliquely campanulate, the lobes shorter than the tubular portion, finely fringed with cilia; stamens 4, the lower pair longer; style simple. Capsule globose or nearly so, surpassing the calyx; seeds numerous, dark brown to blackish, triangular to trapezoidal, reticulate.

Lead Characteristic Go To
1 Pedicels 2-5 mm long, shorter than to as long as the calyx; corolla (17)20-32 mm long. A. purpurea
1 Pedicels 8-20 mm long, longer than the calyx; corolla 8-15 mm long. A. tenuifolia

45. Scrophulariaceae, the Figwort Family
1. Agalinis Raf. -- Gerardia
1. Agalinis purpurea (L.) Penn.
2. Agalinis tenuifolia (Vahl.) Raf

Return to Family -- Scrophulariaceae - The Figwort Family
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