Texas Gardening: Texas Native Plant Pictures by color ( White ), 1 by htop

htop wrote:
Mexican Devil-Weed, Spiny Aster (Chloracantha spinosa; previously Aster spinosus), Asteraceae Family, Texas native, perennial, blooms from April through November (more so in late summer and fall), evergreen stems, may be invasive

Mexican devil-weed (Aster spinosus) is a native much branched perennial that is almost leafless. It is occassionally spiny along its stems. It can form hedge-like thickets along the banks of irrigation ditches, bottomlands, in alkaline valley soils and in moist saline soil along river bottoms, pastures, and low places, It also is found growing with cultivated crops, including soybean, cotton, alfalfa and small grain. It blooms from April to October, but primarily in late summer and fall. Propaqgation is by seeds and by widespreading creeping rhizomes. Although it is found in moist soil areas, it also can be found in dry areas. However, it is not as prolific.

For more information, see its entry in the Plant-Files:
http://davesgarden.com/pf/go/113078/index.html