Peter Finch, San Lorenzo, Dave Freeman discussed on Murph and Mac

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Here's Peter Finch with traffic San Lorenzo, southbound eight eighty a big rig was too tall for the two thirty eight overpass. It has gotten stuck under that over crossing. It's in the right lane. Traffic is stopped from David street in the maze. Westbound five eighty before the eighty interchange. There's a three car accident blocking the middle lane, San Jose. Northbound two eighty under new we've had this accident involving a motorcycle in the left lane. They're bringing in a flatbed tow truck to pull that motorcycle out of there. I'm Peter Finch for K Q E D. All right, Peter. Thank you so much traffic. Brought to you by unbound dot org. I'm Dave Freeman on data eight forty three good morning again, naturalists, Michael Ellis. Now has a perspective on a much maligned member of the plant community. What Whitman once said that a weed was a plant whose useful purpose has not yet been discovered. My dad on the other hand said that anything growing in the yard. That was not grass was a weed. So basically it comes down to an anthropocentric value. Judgment. A weed is simply a plant growing where humans do not want it to at this moment and often these plants are referred to as invasive species. This term is defined as a non native whose introduction does or is likely to cause economic or environmental harm or harm to human health fennel old German IB pampas grass teaser yellow star. Thistle mille-feuille scotch broom gorse ice plant grass g grass Gramma tweet and bind we'd are just a few of the noxious weeds that found a nice and permanent home in the bay area last year over eighty. Five million dollars were spent in California, combating their myriad negative effects weeds are hardy generalist they're adapted to many different habitats. They thrive in disturbed areas. Like gardens and gravel parking lots and out compete native plants extremely fast growing weeds produce sexually and asexually the flowers mostly wind pollinated generate abundant seeds that are small dispersing readily and most importantly, these seeds can lay dormant for centuries. They also reproduce asexually with long tap roots that break off easily each piece generating a new plant or with runners like blackberries or underground stems like crabgrass. Many of them are armed in toxic and some produce chemicals that inhibit the growth of nearby plants. Many of our worst weeds are Eurasian in origin. They accompanied the European invasion of this continent. These plants had already spent thousands of years adapting to severe alterations made to the environment by agrarian societies in the new world..

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