title: [Observation on biological characteristics of wild Pseudostellaria heterophylla].
abstract: OBJECTIVE
  To study the status and regular pattern in growing development of wild Pseudostellaria heterophylla.
  
  
  METHODS
  Observed and studied on wild Pseudostellaria heterophylla during growth periods continuously.
  
  
  RESULTS
  The growing development of Pseudostellaria heterophylla could be divided into three stages: asexual reproduction stage, coexistence of asexual and sexual reproduction stage. In the first two years of seed germination, there was only asexual reproduction, from which substitute tuberous root and cauline tuberous root were formed; Afterward flowering and fructifying sexual reproduction occurred to the plant that had developed from tuberous root while it continued with asexual reproduction; Only sexual reproduction existed during the last year of the Pseudostellaria heterophylla plant before its death. The Pseudostellaria heterophylla plant above ground grew from early spring to late autumn and over-wintered with tuberous root. There were two patterns of asexual reproduction: substitution with tuberous root in spring and expanding of adventitious root on stolon into cauline tuberous root in autumn. All tuberous roots of Pseudostellaria heterophylla were originated from adventitious root; The existence of tuberous root was one year at most; The rapidly expanding period of tuberous root was during February and March.
  
  
  CONCLUSIONS
  The results provide a reference for reformative cultivation of Pseudostellaria heterophylla.
authors.affiliation: Anhui Key Laboratory of Modernized Chinese Material Medica, Department of Pharmacy, Anhui University of Traditional Chinese Medicine, Hefei 230031, China. 1094704506@qq.com
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: De-Qun
authors.initials: DQ
authors.lastname: Wang
authors.forename: Yong
authors.initials: Y
authors.lastname: Yao
authors.forename: Xue-Fei
authors.initials: XF
authors.lastname: Jin
mesh_terms: D029748:Caryophyllaceae / Q000033:anatomy & histology / Q000254:growth & development* / Q000502:physiology; D002980:Climate; D017753:Ecosystem; D018525:Germination; D018515:Plant Leaves / Q000033:anatomy & histology / Q000254:growth & development; D018517:Plant Roots / Q000033:anatomy & histology / Q000254:growth & development*; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000254:growth & development* / Q000502:physiology; D012639:Seeds / Q000254:growth & development; D013696:Temperature