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(Convolvulus arvensis): Morningglory family; perennial;
seed leaves nearly square, with shallow notch at tip; early
true leaves spade shaped; petioles flattened.
(Sorghum halepense): Grass family; perennial; first
leaves with white midvein, 8 times longer than wide and rolled
in bud; ligule membranous below and fringed or toothed above;
(Cyperus esculentus): Sedge family; perennial; grasslike;
light green blades, flat, slender; leaf tip long and drawn
out; nutlets globe shaped, smooth, and almond flavored.
(Cynodon dactylon): Grass family; perennial; first leaves
with somewhat rough surface; ligule surrounded by ring of hairs
with tuft of long hairs on either side; auricles absent; stem
flat, wiry, and without hairs.
(Paspalum dilatatum): Grass family; perennial; first
leaves rolled in bud; ligule membranous and tall, with bluntly
pointed or rounded tip; long, silky hairs at collar; no auricles;
sheaths flattened with prominent midrib; first leaf sheaths
(Trifolium repens): Pea family; perennial; each leaflet
may have a whitish circular band within the center; leaves
trifoliolate (3 leaflets per leaf) smooth, alternate, lower
surface gray green, upper surface green; branching stems 4
to 12 inches long; flower forms a ball-shaped cluster; plant
forms large clumps.
(Rumex crispus): Buckwheat family; perennial; seed leaves succulent
and 3 times longer than wide; young seedlings vary in color, from entirely
green to red tinged in cooler months; petioles of young seedlings ribbed
with bases extending onto stem.
(Taraxacum officinale): Aster family; perennial; seed
leaves green yellow, smooth, and range from circular to oval
to spatulate; young leaves without hairs and usually gray
green on lower surface, alternate, form basal rosette, and
spatulate or oval with long petiole; margins of third true
leaf wavy with irregular, widely spaced teeth.