Propagation Protocol for Rock Evening Primrose Oenothera caespitosa Nutt.

REFERENCES

1. 1. Hickman JC,
   2. Jepson WL.

   1996. The Jepson manual: higher plants of California. Berkeley (CA): University of California Press. 1400 p.
2. 1. McGregor RL.

   1986. Flora of the Great Plains. Great Plains Flora Association. Lawrence (KS): University of Kansas Press. 1402 p.
3. 1. [USDA NRCS] USDA Natural Resources Conservation Service.

   2006. The PLANTS database, version 3.5. URL: http://plants.usda.gov (accessed 3 Oct 2006). Baton Rouge (LA): National Plant Data Center.