hypericum gentianoides(n = noun.plant) nitweed, orange grass, pine-weed, pineweed - annual wiry-stemmed North American weed with minute scalelike leaves and small yellow flowers;
is a kind of st john's wort

genus hypericum, hypericum, hypericum androsaemum, hypericum ascyron, hypericum calycinum, hypericum crux andrae, hypericum hypericoides, hypericum maculatum, hypericum perforatum, hypericum prolificum, hypericum pyramidatum, hypericum spathulatum, hypericum tetrapterum, hypericum virginianum