Native to 35 botanical countries across Northern America and Southern America; introduced into Jawa, Sri Lanka (source: POWO). Flora of the World documents 4 occurrences across 2 countries.
Hydrolea spinosa
var. paraguayensis
var. spinosa
Distribution from Plants of the World Online (POWO). View the accepted name on POWO
Identified as
Hydrolea spinosa var. spinosa
Location
Paraguay, Concepcion (San Carlos, Zona de Estancias)
-22.533611, -57.361667
Location Remarks
Estancia Garay Cuê, "Mirador" at top of a steep sandstone bluff with jumbled boulders; forest among rocks. 380 m elev.
Collectors
W. Douglas Stevens, Isabel Basualdo, Olga Martha Montiel, Christopher Davidson, Sharon R. Christoph
Notes
In standing water, 1 m tall, without spines, glandular-sticky, corolla blue.
Identified as
Hydrolea spinosa var. paraguayensis
Location
Paraguay, Guaira (Colonia Independencia, Planta Urbana)
-25.738056, -56.177778
Location Remarks
Parque Nacional Ybyturuzu, road to Granja Francisca; overgrown wet field just beginning to dry. 170 m elev.
Collectors
W. Douglas Stevens, Isabel Basualdo, Olga Martha Montiel, Christopher Davidson, Sharon R. Christoph
Notes
To 1.5 m tall, plants with or without stem spines, supported by taller plants, corolla blue.
Location
Mexico, Chiapas (Rayón)
17.209056, -92.966472
Location Remarks
Mirador La Selva Negra. Por Cta. Rincon Chamula (Cta 195), c. 2.2 km noroeste de Rincon Chamula. 1898 m elev.
Collectors
Manuel Martinez Melendez, Angelita Lopez-Cruz, Christopher Davidson, Sharon R. Christoph
Identified as
Hydrolea spinosa var. spinosa
Location
Paraguay, Presidente Hayes (Benjamín Aceval, Zona Km 125)
-24.571667, -58.036389
Location Remarks
96.3 km NW end of Río Paraguay bridge on the Ruta Transchaco; open Copernicia swamp. 80 m elev.
Collectors
W. Douglas Stevens, Olga Martha Montiel, Christopher Davidson, Sharon R. Christoph
Notes
Herb, ascending, glandular-sticky, without spines, calyx green, corolla blue, filaments blue, anthers yellow.
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Solanales
Family
Hydroleaceae
Genus
Hydrolea
Specific Epithet
spinosa
Authorship
L.
What is EDGE?
Evolutionary distinctiveness
Lower
ED 0.5
Part of a well-represented branch of the plant tree of life, with many close relatives.
Threat status
Modelled estimate
EDGE score
0.0
Global rank
#304,791 of 335,497
Top 91%
Extinction probability
10%