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Onagraceae
Oenothera

not marked as a favorite taxon Oenothera species 1 [australis]. Phenology: Mar-Sep. Habitat: Dunes, other dry sandy areas near the coast. Distribution: Along the Texas coast, south to Tamaulipas.

Glossary (beta!)

Section: Calylophus. Subsection: Calylophus.

Origin/Endemic status: Native

Taxonomy Comments: Requiring additional study, and perhaps intergrading with O. serrulata in e. TX. See discussion in Wagner (2021). From Towner (1970): “The two species seem to come into contact only in inland eastern Texas. In Brazos and Madison counties, the populations are australis-like, and in neighboring counties to the north the plants combine the pubescence of C. australis and the large leaves of eastern C. serrulatus. These intermediate populations seem to be isolated slightly from the main distributions of the two species. They may be occupying an area of former hybridization or they may be further autogamous derivatives of C. drummondianus [= O. capillifolia].”

Synonymy ⓘ: = Calylophus australis Towner & Raven — Towner & Raven (1970); = Oenothera species 1 — Towner & Raven (1970); < Oenothera serrulata Nuttall — FNA10, K4, NS, POWO. Basionym: Calylophus australis Towner & Raven 1970

Links to other floras: < Oenothera serrulata - FNA10

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Heliophily ⓘ: 9

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