Gandog.
Identity
Unique IDELEMENT_GLOBAL.2.135473
Element CodePDSCR0B040
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderScrophulariales
FamilyOrobanchaceae
GenusBuchnera
Concept ReferenceFlora of North America Editorial Committee (FNA). 2019. Flora of North America north of Mexico. Vol. 17: Magnoliophyta: Tetrachondraceae to Orobanchaceae. Oxford Univ. Press, New York. xxiv + 737 pp.
Taxonomic CommentsFNA (vol. 17, 2019) recognizes Buchnera americana and B. floridana as distinct species. In contrast, Kartesz (1994, 1999) included Buchnera floridana into B. americana.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2025-05-02
Change Date2025-05-02
Edition Date2025-05-02
Edition AuthorsNordman, C. (2025).
Threat ImpactMedium - low
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsFlorida Bluehearts (Buchnera floridana) occurs in southeastern and southern North America, from southeastern North Carolina to Florida, Arkansas and Texas in the United States, and south in eastern Mexico from San Luis Potosi and Tamaulipas to Chiapas, Yucatan and Quintana Roo. It is also reported from Belize, Bahamas, Cuba, Dominican Republic, Jamaica, Panama, Trinidad and Tobago. It is estimated there are about 1500 occurrences rangewide. In the United States it is apparently most abundant in Mississippi, Alabama, Florida, and Texas. Habitat loss and lack of fire are threats to existing populations. It occurs on the Apalachicola, Bienville, Conecuh, Croatan, De Soto, Francis Marion, Homochitto, Kisatchee, Ocala, Osceola, and Talladega National Forests, and on some other state and federal conservation lands.
Range Extent CommentsFlorida Bluehearts (Buchnera floridana) occurs in southeastern and southern North America, from southeastern North Carolina to Florida, Arkansas and Texas in the United States, and south in eastern Mexico from San Luis Potosi and Tamaulipas to Chiapas, Yucatan and Quintana Roo. It is also reported from Belize, Bahamas, Cuba, Dominican Republic, Jamaica, Panama, Trinidad and Tobago (Villaseñor 2016, FNA 2019, POWO 2025, Weakley and Southeastern Flora Team 2025). Range extent was estimated to be about 7,500,000 square kilometers, using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1994 and 2025 (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2024).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1994 and 2025, it is estimated that there are about 1500 occurrences rangewide. In the United States it is apparently most abundant in Mississippi, Alabama, Florida, and Texas (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2024).
Threat Impact CommentsHabitat loss is a threat to existing populations of Buchnera floridana. The lack of fire has led to rapid successional change in many sites, open pine woodlands or prairie areas have gradually developed into closed subcanopy or canopy forests. Without ongoing management practices that retain open conditions, many populations will likely decline further.