Oenothera heterophylla subsp. orientalis

W. Dietrich, P. H. Raven & W. L. Wagner

Ann. Missouri Bot. Gard. 70: 196. 1983.

Treatment appears in FNA Volume 10.

Herbs densely to sparsely strigillose, also at least parts of inflorescence glandular puber­ulent or glabrate. Flowers: buds with free tips usually erect, 1–3 mm; floral tube 30–47 mm; sepals 17–30 mm; petals 25–35 mm. 2n = 14.


Phenology: Flowering May–Jul.
Habitat: Sandy soil of open sites, old alluvium areas in woodlands.
Elevation: 30–60 m.

Discussion

Subspecies orientalis is known from two disjunct areas: Greene, Pickens, and Sumter counties, Ala­bama, and Calhoun, Nevada, and Ouachita counties, Arkansas. W. Dietrich and W. L. Wagner (1988) deter­mined populations in Arkansas to be self-incompatible while those sampled in Alabama were self-compatible.

Selected References

None.

Lower Taxa

None.
Warren L. Wagner +
W. Dietrich, P. H. Raven & W. L. Wagner +
Oenothera ser. +
Ala. +  and Ark. +
30–60 m. +
Sandy soil of open sites, old alluvium areas in woodlands. +
Flowering May–Jul. +
Ann. Missouri Bot. Gard. +
Raimannia heterophylla +
Oenothera heterophylla subsp. orientalis +
Oenothera heterophylla +
subspecies +