Petrosavia sakuraii (Makino) J.J.Sm. ex Steenis

Species

Angiosperms > Petrosaviales > Petrosaviaceae > Petrosavia

Characteristics

Herbs pale yellow, (7--)11--28 cm tall, glabrous. Rhizome ca. 2 mm thick. Stems slender, 1 or 2 arising from rhizome. Scalelike leaves rather lax, particularly in apical part of stem, usually 1--2 cm apart, narrowly to broadly ovate, 2--4(--5) mm, membranous, 1-veined. Inflorescence a raceme, sometimes ± corymbose, 2--8.5 cm, to more than 10-flowered; bracts lanceolate to ovate, 2--3 mm, slightly shorter than pedicel. Pedicel 3--5 mm, bracteolate in proximal part or near base. Flowers small. Perianth adnate for ca. 1/3 its length to ovary; segments ovate-deltoid, 1-veined, outer ones 0.8(--1) × ca. 1 mm, inner ones (1.5--)2 × ca. 2 mm. Stamens ca. 1 mm; anthers ovate. Ovary broadly ovoid, 3-partite. Capsule ca. 3 × 3 mm. Seeds dark brown, ellipsoid, 0.3--0.4(--0.5) mm, longitudinally striate; testa white, elongate, membranous. Fl. Jul--Aug, fr. Oct. 2 n = 60.
More
Aerial stems (5-)10-21(-27) cm high. Scale-leaves of rhizome ovate, c. 2-5 mm long, their base amplexicaul, often forming a closed sheath. Scale-leaves of aerial stem narrowing gradually to the acute apex, 4-6 mm long, their base partly embracing the stem or rarely completely amplexicaul. Raceme simple or with few-flowered branches towards the base, elongate, with (3-)6-25(-30) flowers. Pedicels of mature flowers usually at least 2 mm apart, 3-8 mm. Outer perianth segments ovate to lanceolate, acute, 1.5-2 by 0.5-1 mm. Inner perianth segments ovate, ± acute, 2-3 by 1.25-1¾ mm. Filaments c. 2 mm; anthers less than 0.5 mm long. Ovary superior to semi-inferior; styles up to 1 mm. Capsule segments 2-3 mm long. Seeds c. 0.75 mm long.
Life form -
Growth form herb
Growth support mycoheterotroph
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Sexuality hermaphrodite
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Mature height (meter) 0.11 - 0.25
Root system rhizome
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Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Environment

Along forest paths and on flat forest ridges, 1000-2000 m. Fl. March-July, Nov.
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Hardiness (USDA) 8-12

Usage

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Edible -
Therapeutic use -
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Cultivation

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Images

Petrosavia sakuraii unspecified picture

Distribution

Petrosavia sakuraii world distribution map, present in Argentina, China, Indonesia, Japan, Myanmar, Taiwan, Province of China, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:539773-1
WFO ID wfo-0000715337
COL ID 778CJ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Petrosavia sakuraii Miyoshia sakuraii Petrosavia miyoshia-sakuraii Protolirion miyoshia-sakuraii Protolirion sakuraii