It is not clear whether Habranthus tubispathus is native to North America or was introduced, but it is a disjunct species also found in Argentina, Brazil, central and southern Chile, and southern Uruguay. Another such species is Cienfuegosia drummondii (A. Gray) Lewton (Malvaceae), which occurs in northern Argentina, southernmost Brazil, Paraguay, and southern Texas. These taxa are two of a small group of bicentric species showing disjunct distributions between eastern North America and temperate South America (P. A. Fryxell 1967). All are perennial and fully self-compatible, with a high reproductive potential, so the establishment of a single individual could accomplish disjunction. However, H. tubispathus lacks what all the others share: an impermeable seed coat that allows for a degree of dormancy and longevity.
In the 1930s, Harold H. Hume (J. R. Sealy 1937) suggested that Spanish missionaries had introduced Habranthus tubispathus to Texas around 1700. W. C. Holmes and C. J. Wells (1980) have recently supported this idea. Nevertheless, this means of distribution is questionable since, as W. S. Flory (1938) pointed out, the records indicate that Spaniards out of Mexico founded the Texas missions, and H. tubispathus is not found in Mexico. A. R. Diamond et al. (1998) reported historical evidence for the introduction of H. tubispathus into Alabama in the late 1800s by seeds being sent from Texas. A similar mechanism could have introduced the species to Texas from South America.
Habranthus tubispathus, es una especie de planta herbácea, perenne y bulbosa perteneciente a la familia de las amarilidáceas.
Habranthus tubispathus es una planta bulbosa perennifolia que anteriormente era conocida como Habranthus andersonii o, Habranthus texanus, florece en el verano después de una buena lluvia. La variedad texensis se encuentra en Texas y Louisiana, y es de color amarillo-naranja con vetas de color bronce.[1]
Habranthus tubispathus fue descrita por (L'Hér.) Traub y publicado en Plant Life 7: 42, en el año 1951.[2][3]
Habranthus: nombre genérico que deriva de las palabras griegas: ἀβρος habros para "tierno", "agradable" o "pequeño" y ἄνθος anthos para "flor".
tubispathus: epíteto latino que significa "de espata tubular".[4]
Habranthus tubispathus, es una especie de planta herbácea, perenne y bulbosa perteneciente a la familia de las amarilidáceas.
Vista de la planta en su hábitatHabranthus tubispathus est une espèce de plante de la famille des Amaryllidacées. Elle est originaire d'Amérique du Sud (Brésil, Argentine, Paraguay et Uruguay).
Habranthus tubispathus là một loài thực vật có hoa trong họ Amaryllidaceae. Loài này được (L'Hér.) Traub mô tả khoa học đầu tiên năm 1951.[2]
Habranthus tubispathus là một loài thực vật có hoa trong họ Amaryllidaceae. Loài này được (L'Hér.) Traub mô tả khoa học đầu tiên năm 1951.