adam’s needle and thread (yucca filamentosa) in bloom : (pix sanjiv shukla)

yucca filamentosa adam39aph39s needle thread plant common spanish bayonet beargrass needlepalm silkgrass spoonleaf flowering family asparagaceae southeastern united states flowers tall evergreen shrub horticulture trunkless long filamentous bluegreen strappy leaves white filaments leaf margins cluster pendulous cream coloured summer sandy soil beach scrub dunes fields barrens rocky slopes silt clay moth pollinated host caterpillars