The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Cretan brake, Cretan brake fern, ribbon fern

Stems

slender, creeping, sparingly scaly;

scales dark brown to chestnut brown.

Leaves

clustered to closely spaced, to 1 m.

Petiole

straw-colored to light brown distally, darker proximally, 10–50 cm, base sparsely scaly.

Blade

irregularly ovate, primarily and irregularly pedately divided, 10–30 × 6–25 cm;

rachis not winged;

only terminal pinna decurrent on rachis.

Pinnae

1–3 pairs, well separated, blade often 5-parted with terminal pinna and 2 lateral pairs of pinnae remaining green through winter, not articulate;

sterile pinnae to 25 × 0.8–1.5 cm, serrulate;

fertile pinnae narrower than sterile pinnae, to ca. 11 mm wide, spiny-serrate;

base acute acroscopically and decurrent (sometimes narrowly and barely so) basiscopically, glabrous;

proximal pinnae with 1 (rarely 2) basiscopic lobes.

Veins

free, simple or forked.

Sori

narrow, blade tissue exposed abaxially.

Pteris cretica

Distribution
from FNA
FL; LA; Widely scattered in tropical and subtropical regions worldwide
[WildflowerSearch map]
[BONAP county map]
Discussion

Pteris cretica is almost pantropical in distribution (C. V. Morton 1957). Because this species is so commonly and widely cultivated and appears to escape easily in warmer regions, its native range is uncertain.

Young leaves of young plants of Pteris multifida may key to P. cretica because only the terminal pinnae may be decurrent on the rachis as in P. cretica. Juveniles of P. multifida can be separated by proximal pinnae with long-attenuate apices and thinner-textured leaves than P. cretica. Juveniles of P. cretica have proximal pinnae with acute to blunt or nearly rounded apices and thicker-textured leaves.

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Pinnae green throughout.
P. cretica var. cretica
1. Pinnae with broad, white, central stripe.
P. cretica var. albolineata
Source FNA vol. 2.
Parent taxa Pteridaceae > Pteris
Sibling taxa
P. bahamensis, P. multifida, P. tripartita, P. vittata
Subordinate taxa
P. cretica var. albolineata, P. cretica var. cretica
Synonyms Pycnodoria cretica
Name authority Linnaeus: Mant. Pl. 130. (1767)
Web links