Asplenium rockii C.Chr.

Species

Pteridophytes > Polypodiales > Aspleniaceae > Asplenium

Characteristics

Plants up to 20 cm tall. Rhizome short, erect, or ascending; scales dark brown to black, narrowly triangular, entire or subfimbriate. Stipe stramineous, 2-4 cm, semiterete to terete, with spreading, narrowly triangular, dark brown scales, with long acuminate apex. Lamina narrowly elliptic to lanceolate, 12-18 × 2-3.5 cm, base reduced, 2-pinnate to 3-pinnatifid, apex acute; pinnae 15-20 pairs, subopposite to alternate, stalk ca. 1 mm, lower pinnae reduced, middle pinnae elliptic-subtriangular, 1.5-2.3 × 0.9-1.2 cm, base asymmetrical, acroscopic side truncate, basiscopic side cuneate, apex obtuse to subacute, 1-pinnate or pinnatisect; pinnules 3 pairs, anadromous, basal acroscopic pinnule largest, cuneate-spatulate, 6-8 × 3-4 mm, base cuneate and decurrent on costa wing, apex obtuse-truncate and serrate-lacerate, with 2-4 teeth up to 7 × 3.5 mm. Fronds subleathery, green, edges often revolute when dry, with narrow scales on veins, lamina subglabrous; rachis stramineous or green, sulcate adaxially, with dark brown, narrowly triangular, caudate scales. Costa minutely scaly abaxially, sulcate but with raised supravascular ridge, veins anadromous, not reaching margin. Sori 1 or 2(or 3) per pinnule, median on subtending veinlets, elliptic, 2-4 mm; indusia gray, elliptic, membranous, entire, opening toward costa or costule.
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Growth form herb
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Foliage retention evergreen
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Mature width (meter) -
Mature height (meter) 0.2
Root system rhizome
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Environment

Light -
Soil humidity 4-6
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Hardiness (USDA) 8-12

Usage

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Edible -
Therapeutic use -
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Animal toxicity -

Cultivation

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Distribution

Asplenium rockii world distribution map, present in Bhutan, China, India, Myanmar, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:17304640-1
WFO ID wfo-0001275642
COL ID HLCS
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Asplenium rockii