Agalinis densiflora
| Agalinis densiflora | |
|---|---|
 | |
| Agalinis densiflora in bloom | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Orobanchaceae |
| Genus: | Agalinis |
| Species: | A. densiflora |
| Binomial name | |
| Agalinis densiflora (Benth.) S.F.Blake | |
| Synonyms[2] | |
| |
Agalinis densiflora, commonly known as Osage agalinis, Osage false foxglove, Osage Plains false foxglove, or fine-leaf hairy-foxglove, is a species of flowering plant in the family Orobanchaceae. It is an annual herb endemic to the south-central United States, where it occurs in Kansas, Oklahoma, and Texas.[2][3][4]
Description
Agalinis densiflora is an annual herb growing up to about 30 in (76 cm) tall.[3] It produces pink to lavender flowers with red spots in the throat.[3] Flowering occurs from August to October.[4][3] The fruit is a capsule.[3]
Taxonomy
Agalinis densiflora was originally described as Gerardia densiflora by George Bentham in 1835.[5][2] It was later transferred to Agalinis by Sidney Fay Blake in 1918, giving the accepted combination Agalinis densiflora (Benth.) S.F.Blake.[5][2] Although older sources placed the taxon in Scrophulariaceae, modern treatments place it in Orobanchaceae.[5][2][1]
Synonyms include Gerardia densiflora, Otophylla densiflora, Tomanthera densiflora, and Otophylla drummondii.[2]
Distribution and habitat
Agalinis densiflora is endemic to Kansas, Oklahoma, and Texas.[2][3][4]
It grows in prairies, dry limestone areas, grassy roadsides, pastures, and well-drained calcareous soils.[4][1]
Conservation
NatureServe ranks Agalinis densiflora as G3, indicating that it is globally vulnerable.[1] The rank was last reviewed on 7 April 2025.[1] The species is ranked N3 in the United States and S2 in Kansas, Oklahoma, and Texas.[1] NatureServe estimates about 41 occurrences rangewide and lists potential threats including development, conversion to pasture, oil development, rights-of-way maintenance, invasive species, and severe overgrazing of grassland habitat.[1] The species has no status under the United States Endangered Species Act.[1]
References
- 1 2 3 4 5 6 7 8 "Agalinis densiflora". NatureServe Explorer. NatureServe. Retrieved May 26, 2026.
- 1 2 3 4 5 6 7 "Agalinis densiflora (Benth.) S.F.Blake". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved May 26, 2026.
- 1 2 3 4 5 6 "Agalinis densiflora". Lady Bird Johnson Wildflower Center. The University of Texas at Austin. Retrieved May 26, 2026.
- 1 2 3 4 "Agalinis densiflora". Flora of the Southeastern United States. North Carolina Botanical Garden. Retrieved May 26, 2026.
- 1 2 3 "Agalinis densiflora (Benth.) S.F.Blake". International Plant Names Index. Retrieved May 26, 2026.