NameThatPlant.net: Oenothera glauca

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Myrtales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Oenothera glauca FAMILY Onagraceae Go to FSUS key

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Very distinctive and unlikely to be confused with any other members of the complex; glabrous throughout, strongly glaucous on leaves and inflorescence, per Weakley's Flora (2023)

(?) INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Oenothera fruticosa ssp. tetragona FAMILY Onagraceae

INCLUDED WITHIN Flora of North America north of Mexico, vol. 10 (2021)

Oenothera fruticosa ssp. glauca

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Oenothera fruticosa ssp. tetragona

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Oenothera fruticosa ssp. glauca

INCLUDED WITHIN Onagraceae (Munz, 1965)

Oenothera tetragona ssp. glauca

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Kneiffia glauca

COMMON NAME:
Glaucous Sundrops

To see larger pictures, click or hover over the thumbnails.

image of Oenothera glauca, Glaucous Sundrops

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_kngl_001_lvd

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Oenothera glauca FAMILY Onagraceae

(?) INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Oenothera fruticosa ssp. tetragona FAMILY Onagraceae

INCLUDED WITHIN Flora of North America north of Mexico, vol. 10
Oenothera fruticosa ssp. glauca

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Oenothera fruticosa ssp. tetragona

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Oenothera fruticosa ssp. glauca

INCLUDED WITHIN Onagraceae (Munz, 1965)
Oenothera tetragona ssp. glauca

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia glauca

4660

Forb
Perennial

Habitat: Cliffs, rocky streambanks, moist forests over sedimentary rock, per Weakley's Flora

Native to Georgia

Rare

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Alternate

FLOWER:
Spring/Summer
Yellow
4-lobed calyx
4 petals
8 exserted stamens
Inferior ovary

FRUIT:
Spring/Summer?
Capsule

TO LEARN MORE about this plant, look it up in a good book!

"We treasure pictures and sculpture. We regard Attic temples and Roman triumphal arches and Gothic cathedrals as of priceless value. But we are, as a whole, still in that low state of civilization where we do not understand that it is also vandalism wantonly to destroy or permit the destruction of what is beautiful in nature, whether it be a cliff, a forest, or a species of mammal or bird. Here in the United States we turn our rivers and streams into sewers and dumping-grounds, we pollute the air, we destroy forests and exterminate fishes, birds and mammals — not to speak of vulgarizing charming landscapes with hideous advertisements." — Theodore Roosevelt

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