opposite bud scars, glabrous (shiny); lenticels (white marks)
fruit 3-5 cm long; seeds 5-10 mm in diameter
fruit 3-5 cm long; wing may be straight or incurved; seed ~1.2 cm long
lens shaped in cross section, circular in outline; 1-3 mm wide; dull, dark brown to black; outline of ring-shaped embryo ...
ovate, 2.5-3.5 mm long; acutely tipped; spikelet 3-4 mm long; awn 3-10 mm long, sometimes up to 25 mm long
compressed-oblong, 5-6 mm long, ribbed, style persistent
ovate-lenticular, ~ 2.7 x 2.4 x 1.2 mm; 3 or 4 longitudinal ridges/ribs on both faces in addition to ribs along margins (...
elliptic-ovate, 2.5-3.5 mm long; awn may or may not be present; awn 2-4 cm long
oval to spatulate, 1-1.2 cm long; visible attachement point; surface pitted-reticulate;
elliptic-ovate, 2.5-3.5 mm long; awn may or may not be present; awn 2-4 cm long
elliptic compressed-triangular, 2-2.5 mm long; surface marbled with streaks and/or netted lines
fruit flat, lanceolate to oblanceolate, ~2.5-4 cm x 6-10 mm; very small notch at tip of wing
obovate, 2.5-3.5 mm long; spikelet 3-4 mm long; awn 3-10 mm long, sometimes up to 25 mm long
obovate-elliptic, 1.8-2.2 mm long; prominent elongated white ridge on one side of seed attachement scar (raphe); mottled ...
obovate, 1.6-2.0 mm long; prominent elongated white ridge along base of seed (raphe)
elliptic-ovate in outline compressed triangular in cross section, 2-3 mm long; very slightly arched inward; crosswise wri...
oblong-cylindric, 2-3 mm long with tapering base; pappus (white hairs) may or may not be present in fossils; lengthwise r...
oblong, tapering to base, 2-4 mm long, 5 angled; speckled with small red dots; coarse, white pappus may or may not be pre...
compressed-oblong, 3-4 mm long; dark lengthwise streaks/stripes/mottles; smooth
elliptic, four angled, narrowing at base, ~4 x 2.5 x 2 mm; length wise ridges; surface usually warty or wrinkly
rounded, kidney shaped, 0.5-1.5 mm long; dark tipped, cone shaped tubercles (warty bumps) in concentric rows, increasing ...
obovate, 2-4 mm long; distinct longitudinal line present; mottled brown and white
compressed kidney shaped, 0.5- 1 mm; rounded, irregular shaped tubercles (warty bumps) concentric from hilum (seed base)
oval-orbicular, ~1 mm long; surface is hoarfrost patterned; margins covered in large, rounded tubercles (warty bumps)
roundish-ovate (unlike others in family), less than 0.5 mm; reticulate dimpled
