OregonFlora: Pellaea intermedia vs. Pellaea bridgesii

	Pellaea intermedia	Pellaea bridgesii
		Bridges' cliff-brake
Stems		ascending, branched and forming a caudex; scales dense; long; narrow and bicolored.
Leaves		in more or less dense tufts from the caudex; small; to about 25 × 4 cm.
Petioles		well developed; up to half the leaf length; petiole and rachis medium to dark brown; glossy; basal annular lines absent.
Blades		simply pinnate and linear; at least the proximal pinnae twisted out of plane.
Segments		broadly ovate; leathery, glabrous; apex rounded; base rounded or sub e, slightly falcate; margins glaucous; margin entire or slightly crenate, not or only slightly recurved, not forming a false indusium, glaucous; veins anastomosing but rather obscure.
Sporangia		forming a submarginal line on each side of the pinna, absent from the base, extending into the rounded apex, often almost to the tip, not covered by the leaf margin; waxy glands and farina abundant.
2n		=58.

	Pellaea intermedia	Pellaea bridgesii
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion		Dry, rocky sites in the mountains. 1500–2400 m. BW. CA, ID, NV. Native.
Source		Flora of Oregon, volume 1, page 102 Duncan Thomas
Sibling taxa	P. andromedifolia, P. brachyptera, P. breweri, P. bridgesii	P. andromedifolia, P. brachyptera, P. breweri
Web links	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA, OR Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Pellaea intermedia

Pellaea bridgesii

Bridges' cliff-brake

Stems

ascending, branched and forming a caudex;

scales dense; long; narrow and bicolored.

Leaves

in more or less dense tufts from the caudex; small; to about 25 × 4 cm.

Petioles

well developed; up to half the leaf length;

petiole and rachis medium to dark brown; glossy;

basal annular lines absent.

Blades

simply pinnate and linear; at least the proximal pinnae twisted out of plane.

Segments

broadly ovate; leathery, glabrous;

apex rounded;

base rounded or sub e, slightly falcate;

margins glaucous;

margin entire or slightly crenate, not or only slightly recurved, not forming a false indusium, glaucous;

veins anastomosing but rather obscure.

Sporangia

forming a submarginal line on each side of the pinna, absent from the base, extending into the rounded apex, often almost to the tip, not covered by the leaf margin; waxy glands and farina abundant.

=58.