bigfruit evening primrose

Oenothera macrocarpa

Its enormous four-winged seed pods can grow up to three inches long and act like mini tumbleweeds, catching the wind to scatter seeds.

Scientific name
Oenothera macrocarpa
Taxonomy
Plantae › Tracheophyta › Magnoliopsida › Myrtales › Onagraceae › Oenothera
IUCN Red List status
Least Concern
Population trend
stable
Biome
grassland
Habitat
Limestone glades, rocky prairies, barrens, and roadside slopes.
Diet
Autotrophic (photosynthesis)
Range
Texas, Oklahoma, Kansas, Missouri, Nebraska
Size
8-12 inches tall, trailing up to 3 feet wide; flowers 3-5 inches across.
Lifespan
5-10 years
Active
crepuscular
Threats
Habitat fragmentation, agricultural expansion, and invasive woody species shading out glades.
Safe to approach?
Harmless and safe to approach. Observe these stunning yellow flowers at dusk to watch them rapidly bloom. Avoid picking the wild flowers to allow natural seed dispersal.

Oenothera macrocarpa , the bigfruit evening primrose , Ozark sundrop or Missouri evening primrose , is a species of flowering plant in the evening primrose family Onagraceae, native to Mexico and the south-central United States, where it is found in calcareous prairies and limestone outcrops.

Photo: no rights reserved, CC0, via iNaturalist

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