Oenothera subsect. Schizocarya

(Spach) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 168. 2007.

Basionym: Schizocarya spach Ann. Sci. Nat., Bot., sér. 2, 4: 170. 1835
Synonyms: Gaura [unranked] Schizocarya (Spach) Endlicher Gaura sect. Schizocarya (Spach) P. H. Raven & D. P. Gregory
Treatment appears in FNA Volume 10.

Herbs annual; from enlarged taproot. Stems usually unbranched, sometimes branched. Inflorescences slender, nodding. Flowers 4-merous, nearly actinomorphic, opening near sunset; floral tube 1.5–5 mm; petals white, slightly unequal; filaments with minute basal scale. Capsules reflexed in age, fusiform, terete, weakly 4-angled in distal 1/3, angles becoming broad and rounded in proximal part, tapering abruptly toward base; sessile. 2n = 14.

Distribution

w, c United States, n, c Mexico, introduced in s South America, Asia (China, Japan), Australia.

Discussion

Species 1.

Selected References

None.

Warren L. Wagner +
(Spach) W. L. Wagner & Hoch +
Schizocarya spach +
w +, c United States +, n +, c Mexico +, introduced in s South America +, Asia (China +, Japan) +  and Australia. +
Syst. Bot. Monogr. +
Gaura [unranked] +  and Gaura sect. +
Oenothera subsect. Schizocarya +
Oenothera sect. Gaura +
subsection +