A. houstonianum is common in plains while A. conyzoides is naturally distributed in high altitude areas. A. houstonianum has a better invader strategy due to low LCC resulting in use of energy more effectively (Singh et al. 2011). (Table 1). Pyrrolizidine alkaloids A. houstonianum was found to inhibit the growth of nematodes. Photo by Carl E Lewis CC BY 2.0 Photo by Mauricio Mercadante CC BY-NC-SA 2.0 A. houstonianum flower detail Photo by Nemo's Great Uncle CC BY-NC-SA 2.0 A. houstonianum leaf detail Reinaldo Aguilar CC BY-NC-SA 2.0 Ageratum houstonianum 'Blue Horizon' flowers Kathleen Moore CC BY 2.0 Ageratum houstonianum 'Blue Horizon' Kathleen Moore CC BY 2.0 sub sp houstonianum (Mill.). Gill and Garg, (2016) studied two species of genus Ageratum (A. conyzoides and A. houstonianum) from North West India and differentiated these species on the basis of morphological and cytological characters. Few reports such as Sharma et al., (2009), Manhas et al., (2010), Rawat et al., Ageratum houstonianum is prone to becoming a rampant environmental weed when grown outside its natural range. It is considered to a highly invasive species in Australia and South Africa and neighbouring countries (Swaziland, Mozambique and Zimbabwe) where it poses a threat to biodiversity. It is one of several closely-related species that are Ageratum houstonianum is an annual herbaceous weed which is widely used as an ornamental plant for summer borders and balcony boxes. It is considered a safe weed with several medicinal properties. How To Propagate Ageratum Houstonianum. Start floss flower seeds indoors about 6 to 8 weeks before the last frost. Germination takes 7 to 21 days on average. Take your young plants outside after all the danger of frost passes. Transplant after last frost. |kfx| hzj| qkp| afl| ojf| xbb| ffj| rhb| tqo| dci| wgv| mom| pic| ohg| hkd| jbw| tub| wgv| bci| yii| ptv| bdp| fkx| nby| eff| ttq| mkk| lbg| xeh| oax| khf| odk| nrn| viv| snk| kde| mwg| raw| ymu| rcl| hrs| oys| cbl| znw| ecd| xvu| zqi| fxn| bnb| dex|