Flora of North America species comparison

leaves ovate-triangular to triangular, 1–1.6 mm; appressed to spreading;

apex acute to slightly obtuse;

hyaline cells often fibrillose and often 1-septate.

leaves lingulate to spatulate, widest above middle (1.5 times as wide as the base), 1.5–2.5 mm, apex obtuse and dentate to lacerate;

border entire and little broadened at base, hyaline cells elongated-rhomboid, normally 1-septate, strongly fibrillose in distal portion, convex surface with numerous large pores and resorption gaps in apical angles, concave surface with large resorption gaps below and large resorption pores above.

straight and unranked, in capitulum tapering at distal end to a point, leaves greatly elongated at distal end.

unranked, terete.

ovate-lanceolate to lanceolate, 2–3.5 mm; straight, undulate and slightly recurved when dry;

margin serrulate;

hyaline cells on convex surface with 0–1 small pores at cell apex on concave surface with round wall thinnings in cell angles (often indistinct or lacking); chlorophyllous cells trapezoidal in transverse section and exposed more broadly on the convex surface.

ovate, 1.3–2.5 mm, straight, not concave;

apex weakly involute, broadly truncate with 6–10 conspicuous teeth;

border entire;

hyaline cells on convex surface with elliptic pores (4–8 per cell) along the commissures, concave surface with large round pores in distal half and proximal portion of cells.

monoicous.

dioicous.

26–40 µm; ± roughly to densely granulose.

26–34 µm; finely granulose-roughened.

stems green, cortex enlarged with conspicuous retort cells.

fascicles with 2 spreading and 1–2 pendent branches.