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questions :pteris vittata
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[Visitor (112.21.*.*)]answers [Chinese ]Time :2022-04-20
Anchovy fern

The plant is 50-70 cm tall. The rhizomes are short and erect or obliquely raised, about 1 cm thick, and the apex is covered with black-brown scales.
The leaf edges are only short serrations, and the base of the apical trident feathers often extends down to the leaf axis, and the next pair is also more or less extended. Leaves are clustered, type II or nearly type II; stalk length 30–45 cm (the stalk of sterile leaves is shorter), the base is about 2 mm thick, grass stalk color, sometimes brown, occasionally maroon, smooth surface; leaves are ovoid, 25–30 cm long and 15–20 cm wide, one pinnate; pinnacles of sterile leaves (2) 3–5 pairs (sometimes palmate), usually paraphyletic, obliquely upward, a pair at the base with a short stalk and a bifurcated (rarely three-pronged), upward sessile, narrow lanceolate or lanceolate (the second pair also tends to be bifurcated), Length 10-18 (24) cm, width 1-1.5 (2) cm, tapering at the apex, broad wedge-shaped at the base, cartilaginous edges and serrated margins, serrations tend to be coarse and pointed, and sometimes with fine serrations; leaf-fertile pinnae 3-5 (8) pairs, paraphyletic or upward gradually alternate, obliquely upward, the base pair has a short stalk and bifurcated, occasionally three-pronged or single, upward sessile, linear (or the second pair is also often bifurcated), 12-25 cm long, 5-12 mm wide, apex tapering and sharp serrations, broad wedge-shaped at the base, the base of the apical trigeminal feathers is not extended or descended. The underside of the main vein is strong and raised, grassy and smooth; the lateral veins are distinct on both sides, sparse, obliquely spread, single or forked from the base part. The leaves are papery, green or gray-green, glabrous after drying, and the leaf shaft is grassy and smooth...
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