Tectaria heracleifolia

(Willdenow) L. Underwood

Bull. Torrey Bot. Club 33: 200. 1906

Common names: Broad halberd fern
Basionyms: Aspidium heracleifolium Willdenow Sp. Pl. 5(1): 217. 1810
Treatment appears in FNA Volume 2.
Click plate for higher resolution version.
Illustrator: John Myers
Stems erect, compact. Petiole straw-colored or rarely brown, 1–2 times length of blade, glabrous on both surfaces, base scaly; scales linear to lanceolate, 3–10 × 0.5–2 mm. Blade ovate to pentagonal, 1-pinnate or (in small plants) ternately lobed, (12–)20–40(–50) × 14–40(–45) cm. Rachis and costae glabrous abaxially. Pinnae 1–2(–3) pairs, 12–22 cm, base cordate, margins shallowly lobed, with pair of basal lobes and without proliferous buds in axils. Areoles with included veinlets. Indusia peltate. 2n = 160.

Habitat: Rocky hammocks, limestone outcrops in shade, cave entrances
Elevation: 0–100 m


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Fla., Tex., Mexico, West Indies in Antilles, Central America, South America to Peru.




Lower Taxa

No lower taxa listed.