Author:
Ebke Duane H.,McCarty Melvin K.
Abstract
Live root material of leafy spurge (Euphorbiaspp.) was collected from 38 locations across northern United States, southern Canada, and from 1 location in Austria. These materials were established in a nursery at Lincoln, Nebraska along withE. agrariaM. Bieb. andE. cyparissiasL. # EPHCY. Nineteen vegetative and reproductive characters, taken from various taxonomic keys, were measured on plants established for a period of 3 yr. Data were compared with previous taxonomic keys ofEuphorbiaspecies. A key developed by A. Radcliffe-Smith was used to separate the nursery entries. Leaf width measurements were the most useful taxonomic criteria. Five morphologically separable taxa were observed:E. × pseudovirgata(Schur) Soó,E. esulaL. # EPHES,E. uralensisFisch. ex Link.,E. agrariaM. Bieb., andE. cyparissiasL.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference19 articles.
1. New Combinations in the Genus Euphorbia: III
2. The correct name of leafy spurge;Morton;Rhodora,1937
3. CYTOTAXONOMY OF EUPHORBIA ESULA IN CANADA AND ITS HYBRID WITH EUPHORBIA CYPARISSIAS
4. The variability of leafy spurge (Euphorbia spp.) in the United States. Nor. Cen. Weed Cont;Dunn;Conf. Res. Rep.f,1980
5. Dunn P. H. 1979. Probable origins of leagy spurge (Euphorbia esula L.) in North America. Abs. Weed Sci. Soc. Am p. 81.
Cited by
17 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献