unequal glumes; prominent veins on longer glume
unequal glumes; prominent veins on longer glume
lens-shaped, light to dark brown or olive, shiny, 1-1.5 mm long; tubercle (cap on top of seed) flattened-triangular, abou...
brown, 3 angled. 0.5-1 mm long
common species with broad range and variable morphology; 1-2 mm long, yellow to brown; tubercle (cap on top of seed) flat...
brown, 3 angled, 1-2 mm long, up to 0.5 mm wide at broad end
ellipsoid to obovoid, 3-5 mm long, 2-3 mm wide; rounded on one side and compressed-angled on other; circular hole at base...
spindle shaped, 5-7 mm long; abruptly contracted to a beak 1-3 mm long
obovate, flat on one side, 2-4 mm long; conspicuously ribbed
obovate, flat on one side, convex on other, 2-3 mm long, beak (on broad end of seed) up to 5 mm long, bristles (hairs) no...
flat on one side, convex on other, 2-3 mm long, beak (on broad end of seed) up to 0.2 mm long, bristles (hairs) not alway...
tan to white, 3 angled; ~ 1mm long, beak (on broad end of seed) ~0.2 mm long, bristles (hairs) not always present
ellipsoid trigonous with sinous, persistent style; 2.2-3 mm long, 2.5 times as long as wide
floret awl-shaped, 1-2 cm long, tapering to an awn 3-6 cm long; seed oblong, 1-2 cm long
oblong-elliptic, elongate, 0.8-1 mm long; whorled white pappus may be present; small, conical nipple on truncate end
lanceolate, 5-8 mm long; strongly nerved; tapering to beak, which is ~2-3 mm long; beake with reflexed teeth ~1-2 mm lon...
flattened trigonous, 0.5-1 mm long; short beak; very long bristles easily attach/tangle
oval, ~0.5 mm long; dark terminal appendages tapering at ends; cellular reticulations clearly visible in cell wall
elliptic, 3.5-5 mm long; lengthwise ridge is diagnostic of seed
flattened trigonous, 0.5-1 mm long; short beak; very long bristles easily attach/tangle
ovate, 0.3-0.5 mm long; dark terminal appendage at top of seed; cellular reticulations clearly visible in cell wall
obovate, 0.5-1.5 mm; strongly 7 veined; often purple
reniform with a straight edge; 1-1.5 mm long; seam bisecting arched side of seed
