Flora of North America species comparison

to 5 pairs, spreading, well separated, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, basal pinna pair approximately equal in size and cutting to adjacent pair, broadly fan-shaped, undivided to tip, margins mainly crenulate to dentate, proximal pinnae with 1 or more shallow incisions, apex rounded, apical lobe linear to linear-cuneate, well separated from adjacent lobes, venation like ribs of fan, midrib absent.

to 5 pairs, ascending, approximate, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, linear to broadly lanceolate, entire to divided to tip, margins with distinct lobes or segments, apex acute to rounded, venation pinnate.

stalk 0.5–7 mm;

blade yellow-green, oblong, 1-pinnate, to 6 × 2 cm, thin, herbaceous.

stalk 0–1 mm;

blade dull to shiny green to dark green, deltate, 1–2-pinnate, to 6 × 7 cm.

1–2-pinnate, 1.3–3 times length of trophophore.

1–3-pinnate, 1–2.5 times length of trophophore, divided into several equally long branches (all other botrychiums have a single stalk or 1 dominant and 2 smaller).

=90.

=90.