Blechnum spicant (L.) Roth
Synonyms |
Osmunda spicant L. |
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Common name |
Deer fern |
Description |
Rhizome slender, short-creeping or ascending. Fronds dimorphic, tufted, erect or spreading, fertile fronds more erect and longer than sterile ones. Stipe reddish brown to purple-black, coarsely scaly proximally, fertile stipe (15-60 cm), longer than sterile one (2-30 cm). Fertile lamina erect, narrowly rhombic in outline, pinnate, without conform terminal pinna, 25-65 × 3-15 cm, glabrous; pinnae sessile, base prolonged down the rhachis, larger pinnae slightly curved, linear, 25-32 × 1.5-2 mm, margins entire, costae with indument of a few small scales abaxially, often concealed by sori. Sterile lamina spreading, narrowly oblanceolate to linear-lanceolate in outline, pinnatifid to apex and so without conform terminal pinna, 20-75 × 3-14 cm, tapering at base, glabrous; pinnae closely spaced, base fully adnate, larger pinnae curved, linear to oblong-linear or barely wider beyond middle, 15-35 × 3.5-5 mm, margins entire. Rhachises of fertile and sterile lamina with filiform, spreading scales abaxially. |
Notes | |
Derivation | |
Habitat | Wet ravines, edges of streams. |
Distribution worldwide | Africa, native to Europe and North America. |
Distribution in Africa |
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Growth form |
Terrestrial. |
Literature |
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