Gutierrezia


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Gutierrezia

a North American plant genus of the family Asteraceae.

Gutierrezia microcephala, Gutierrezia sarothrae
contains a toxic saponin which causes an acute illness with sudden death and lesions of gastroenteritis, hepatitis and nephritis. Chronic poisoning causes a syndrome of abortion, stillbirth and retained placenta. Converter plants for selenium. Called also Xanthocephalum lucidum, X. sarothrae, perennial broomweed, slinkweed, snakeweed, turpentine weed.
References in periodicals archive ?
Of these two pairs of species associations, Coleogyne and Gutierrezia revealed a more positive correlation (Table 1).
Association with mature plants protects seedlings from predation in an arid grassland shrub, Gutierrezia microcephala.
Influence of insect herbivory on photosynthetic area and reproduction in Gutierrezia species.
effusum, Gutierrezia sarothrae, Ceratoides lanata, Chrysothamnus nauseosus) and a variety of midgrasses (Pascopyron smithii, Stipa comata, Aristida longiseta, Sitanion hystrix).
Gutierrezia sarothrae (Pursh) Britton & Rusby; 07; Mexico a Estados Unidos de America.
In the shrub-grassland area where soils are coarsely textured, the saltbush is more widely spaced and there are numerous small shrubs (Artemisia frigida, Eriogonum effusum, Gutierrezia sarothrae, Chrysothamnous nauseous, Ceratoides lanata) and perennial bunch-grasses (Stipa comata, Oryzopsis hymenoides, Aristida longiseta, Sitanion hystrix).
The shortgrass prairie of the Central Plains Experimental Range (50 km northeast of Fort Collins, Weld County; elevation = 1650 m), a Long-Term Ecological Research site, consists of a matrix of perennial grass species (blue grama, Bouteloua gracilis, and buffalo grass, Buchioe dactyloides), interspersed with cactus (primarily Opuntia polyacantha), shrubs (Chrysothamnus nauseosus, Gutierrezia sarothrae), midgrasses (e.
stricta, Hilaria mutica, Eragrostis obtusiflora, Muhlenbergia repens, Panicum obtusum, Scleropogon brevifolius y Sporobolus pulvinatus, ademas de otros elementos herbaceos y arbustivos como Atriplex canescens, Condalia ericoides, Flourensia cernua, Gutierrezia microcephala, Koeberlinia spinosa, Larrea tridentata y Salsola tragus.
Gutierrezia sphaerocephala Gray, Roundleaf, snakeleaf (HS, R).
Gray X X X X (364, 602, 919) Gutierrezia texana (DC.