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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Calylophus hartwegii ssp. filifolius (Hartweg's sundrops)
Anderson, Wynn

Calylophus hartwegii ssp. filifolius

Calylophus hartwegii (Benth.) P.H. Raven ssp. filifolius (Eastw.) Towner & P.H. Raven

Hartweg's Sundrops

Onagraceae (Evening Primrose Family)

Synonym(s): Calylophus hartwegii var. filifolius, Oenothera filifolia, Oenothera hartwegii var. filifolia, Oenothera tubicula var. filifolia


USDA Native Status: L48 (N)


From the Image Gallery

29 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Subshrub
Fruit Type: Capsule
Size Notes: Up to about 2 feet tall.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct



Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Calylophus hartwegii ssp. filifolius in USDA Plants
FNA: Find Calylophus hartwegii ssp. filifolius in the Flora of North America (if available)
Google: Search Google for Calylophus hartwegii ssp. filifolius


Record Modified: 2023-04-19
Research By: TWC Staff

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