In its native range in the Mediterranean region, G. monspessulana is widespread but only locally abundant. It tends to form small populations. Description. French broom is an upright, evergreen shrub that commonly grows to 10 ft. tall. It has round stems that are covered with silvery, silky hair, and small. Genista monspessulana. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire.
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Fifteen species and eight subspecies in this genus Percy and Cronk,including G. Younger stems are ridged lengthwise i. It is the most important weed in Jackson State Experimental Forest. Several horticultural hybrids involving this species are also commonly cultivated in Australia e. Komarov, ; Grossheim, Parsons and Cuthbertsonallude to its use by Mexican Indians for smoking etc. Skip to main content.
In exotic populations, the historic horticultural importation and associated hybridization activities with other species in the Teline group suggest that exotic populations may nonetheless exhibit genetic variation and as such may not be identical to native G. Leaflets are elliptic to obovate, x 2. Crossman ND, Kochergen J, The bright yellow flowers are pea-shaped mm long and borne on very short stalks i.
In drier climates broom can remain a highly invasive species associated with genlsta banks or braided riverbeds of watercourses or along drainage monspessulanaa.
Bruchidius villosus has recently been introduced into a number of countries to control Cytisus scoparius Syrett et al. Specific chemicals are appropriate for specific situations, such as proximity to water courses.
Calyx mm hairy in two parts, the upper lip deeply two toothed and the lower lip indistinctly three toothed. Sheldon Navie close-up of younger stems and hairy leaf undersides Photo: Seed germination and agronomy. Rob and Fiona Richardson immature fruit Photo: Report to the land management division of the Marin municipal water monspessulama unpublished.
This is consistent with populations being generated by pulsed opportunities for recruitment associated with fire and other disturbance. Applications need to be made in periods of active growth after flower formation, but before seed monspessulqna. These weeds compete with and replace the native food plant of the butterfly, sweet bursaria Bursaria spinosa.
Weeds of Australia – Biosecurity Queensland Edition Fact Sheet
The capacity of brooms to fix nitrogen is thought to alter soil nitrogen profiles and, through this change, the suitability of infested localities to support certain native species that are adapted to low nitrogen soils and allow invasion by other species Smith, Broom stands can also encourage other exotic feral animals and birds Smith, Oregon State Monnspessulana Herbarium, In the native range, this monsoessulana is regularly defoliated by the moth Uresiphita polygonalis and a combination of stem boring insects regularly kills immature plants in eastern France.
Standard or large upper petal mm, monspessulaa ovate, glabrous. Age structures in the exotic range fit a ‘reversed J’ distribution better, with highest numbers in the youngest age class and numbers declining with increasing age.
Infestation; Hillside invasion John M. New South Wales University Press. In its introduced monspessupana, however, it is an invasive environmental weed of national, state and urban parks and fallow land, often forming dense monospecific stands.
Invaded habitats include coastal plains, mountain slopes, riverbanks, road cuts, forest clear-cuts, grassland and open canopy forest on a wide range of soil types. Soil Tolerances Top of page Soil drainage free Soil reaction acid neutral Soil texture light medium Special soil tolerances infertile shallow.
Taxonomic Tree Top of page Domain: Triclopyr ester in Hasten or Penevator oil in low volume basal bark application with a wick has proved very effective at killing mature plants Bossard et al.
Brill, Leiden, Netherlands, Regional differences in the distribution of the pyralid moth Uresiphita reversalis GuenTe on French broom, an introduced weed. Arthropod populations at three Golden Gate habitats compared.
Genista monspessulana – Invasive Species | Cape Town Invasives
More information about modern web browsers can be found at http: Broom a threat to native plants. Don’t need the entire report? Eriophyidae on gorse and French broom in the United States.
Mapping environmental weeds in the Mount Lofty Ranges, South Australia, using high resolution infrared aerial photography. Native to northern Africa i. University of Adelaide McClintock E, Gibbs, ; Gibbs and Dingwall, ; Greuter et al.