Oenothera filipes

(Spach) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 212. 2007.

Basionym: Gaura filipes Spach Nouv. Ann. Mus. Hist. Nat. 4: 379. 1836
Synonyms: G. filipes var. major Torrey & A. Gray G. michauxii Spach
Treatment appears in FNA Volume 10.

Herbs perennial, clumped, sparsely to densely strigillose, inflorescence usually glabrous or glandular puberulent, sometimes proximalmost parts villous, hairs erect, 1–2 mm; from heavy, twisted, woody rootstock. Stems erect, branched below and just above ground, branched also proximal to inflorescences, 60–250(–300) cm. Leaves in a basal rosette and cauline, (1–)3–9 × (0.1–)0.5–1.3 cm, blade linear or narrowly lanceolate to narrowly oblanceolate, margins slightly to coarsely sinuate-dentate. Inflorescences slender, often well-branched, buds small and well-spaced. Flowers 4-merous, zygomorphic, opening near sunset; floral tube 2.5–6 mm; sepals 5–12.5 mm; petals white, fading pink to red, slightly unequal, elliptic, 5–10 mm, clawed; stamens presented evenly around flower parts, filaments 3–8.5 mm, anthers 1.4–4 mm, pollen 90–100% fertile; style 8.5–19 mm, stigma exserted beyond anthers at anthesis. Capsules ovoid, narrowly 4-winged or 4-angled, 5–10 × 1.5–2 mm, abruptly constricted to a sterile stipe 0.5–4.5 mm. Seeds 1 or 2, yellowish to reddish brown, 1.5–3.5 × 1–1.5 mm. 2n = 14.

Phenology: Flowering May–Sep(–Oct).
Habitat: Sandy hills and flats, open woods.
Elevation: 0–300 m.


Ala., Fla., Ga., Ill., Ind., Ky., La., Miss., Mo., S.C., Tenn.


Oenothera filipes occurs marginally in several states, including: southernmost Illinois and southern Indiana; northern Florida; southeastern Mississippi; and, Washington Parish, Louisiana. P. H. Raven and D. P. Gregory (1972[1973]) determined O. filipes to be self-incompatible.

Selected References


Lower Taxa

... more about "Oenothera filipes"
Warren L. Wagner +
(Spach) W. L. Wagner & Hoch +
Gaura filipes +
Ala. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Miss. +, Mo. +, S.C. +  and Tenn. +
0–300 m. +
Sandy hills and flats, open woods. +
Flowering May–Sep(–Oct). +
Syst. Bot. Monogr. +
G. filipes var. major +  and G. michauxii +
Oenothera filipes +
Oenothera subsect. Stipogaura +
species +