Tectaria fimbriata

(Willdenow) Proctor & Lourteig

Bradea 5: 386. 1990.

Common names: Least halberd fern
Basionym: Aspidium fimbriatum Willdenow Sp. Pl. 5(1): 213. 1810
Synonyms: Aspidium minimum (L. Underwood) Clute Aspidium trifoliatum var. minimum Clute Sagenia lobata C. Presl Tectaria lobata (C. Presl) C. V. Morton Tectaria minima L. Underwood
Treatment appears in FNA Volume 2.

Stems horizontal, short-creeping. Petiole straw-colored, 1–3 times length of blade, hairs absent abaxially, pubescent adaxially, base scaly; scales lanceolate to linear, 1–3 × 0.3–0.5 mm. Blade deltate to pentagonal, 1-pinnate or ternately lobed, 5–10 × 3–7 cm. Rachis and costae pubescent abaxially. Pinnae absent or 1(–2) pair, or blade shallowly pinnatifid, 4–7 cm, base rounded, without proliferous buds in axils. Areoles rarely with included veinlets. Indusia peltate. 2n = 80.

Habitat: Sinkholes, on shaded ledges or occasionally in sun
Elevation: 0 m


V2 489-distribution-map.gif

Fla., Mexico in Yucatán, West Indies in Bahamas, Greater Antilles.


The hybrid between Tectaria fimbriata and T. coriandrifolia is T. × amesiana A. A. Eaton. Although intermediate between the two parents, the hybrid will lead to T. fimbriata in the key. The hybrid may be distinguished from T. fimbriata by scattered hairs on abaxial surface of petioles and misshapen spores.

Selected References


Lower Taxa

... more about "Tectaria fimbriata"
Robbin C. Moran +
(Willdenow) Proctor & Lourteig +
Aspidium fimbriatum +
Least halberd fern +
Fla. +, Mexico in Yucatán +, West Indies in Bahamas +  and Greater Antilles. +
Sinkholes, on shaded ledges or occasionally in sun +
Aspidium minimum +, Aspidium trifoliatum var. minimum +, Sagenia lobata +, Tectaria lobata +  and Tectaria minima +
Tectaria fimbriata +
Tectaria +
species +