- Author
- Clark, Deborah L., Finley, Karen K., Ingersoll, Cheryl A.
- Publication Year
- 1995
- Region
- Willamette Valley
- Habitat
- Upland Prairie, Wet Prairie
- Topic
- Native plants, Plant production, Rare species recovery, Restoration & Management
- Full Citation
- Clark, D.L., Ingersoll, C.L. and Finley, K.K. 1995. Regeneration Biology of Erigeron decumbens var. decumbens, an endangered plant of the Willamette Valley, prepared for Oregon Plant Conservation Biology Program, Oregon Department of Agriculture, Salem, Oregon.
- Author Contact Details
- Author Email
- Deborah.clark@lifetime.oregonstate.edu
Understanding the regeneration biology of Erigeron decumbens var. decumbens, is essential for developing appropriate management and restoration efforts. Seed production of Erigeron decumbens was high (160-220 seeds/head). However, very few of these seeds (3-29/head) appeared robust. Of the robust seeds, only a little more than half were viable. Viability and germination of seeds collected in 1993 and of those collected in 1994 were similar, suggesting the possibility of long term seed storage. Pre-treatment cutting or seed coat scarification is essential for promoting germination of E. decumbens seeds. Germination was significantly affected by the interaction of seed age, seed scarification, gibberellic acid, and cold treatment. E. decumbens can be successfully propagated by vegetative cuttings but must include a small segment of rhizome tissue.