life
cycle - native perennial, reproducing by seed
stems -
upright or ascending, square stems, multiple from base and
branching, unbranched above, densely pubescent and hairy
growth
habit 1, growth
habit 2, stem
leaves -
whorled 4 per node, oval, rigid, hairy leaves
flowers - 4-petaled, greenish-white to purplish, small; terminal
or axillary cymes
fruit -
round, dense bristles fruits