Flora of North America species comparison

short-creeping to erect, stolons absent.

erect, compact.

monomorphic, evergreen.

3/4–3 times length of blade, base not swollen;

vascular bundles more than 3, arranged in an arc, ± round in cross section.

straw-colored to tan or chestnut brown, equaling or slightly longer than blade, pubescent on both surfaces, base scaly;

scales narrowly lanceolate, 3–8 × 0.2–0.7 mm.

lanceolate to deltate or pentagonal, entire to 1-pinnate-pinnatifid [3-pinnate-pinnatifid], reduced distally to shallowly lobed or hastate apex, herbaceous to papery.

oblong or ovate-oblong, 1-pinnate, 0.15–1.2 × 0.2–0.5 m. Rachis and costae puberulent abaxially.

not articulate to rachis, segment margins entire to sinuate or shallowly lobed;

proximal pinnae not or only slightly reduced, sessile to short-petiolulate, base equilateral or often inequilateral with prominent basiscopic lobe(s);

costae adaxially rounded or shallowly grooved, grooves not continuous from rachis to costae;

indument lacking or of multicellular hairs on costae abaxially, of multicellular hairs on costae adaxially.

(2–)3–6 pairs, 12–25 cm, base oblique, with 1–2 proximal basiscopic lobes, margins crenate without proliferous buds in axils.

reticulate, areoles with or without included veinlets.

attached laterally.

in 1–several rows between midrib and margin, round;

indusia peltate to round-reniform and with narrow sinus, persistent or caducous.

brownish, with inflated folds or wings.

with included veinlets.

= 40.

= 160.