Hypolytrum nemorum (Vahl) Spreng.

Species

Angiosperms > Poales > Cyperaceae > Hypolytrum

Characteristics

Roots few, hard, fibrous. Rhizomes short, slightly thick, woody, with dense reddish scales. Culms central, 30-90 cm tall, 3-4 mm thick, 3-angled, stiff. Leaves basal and 1 or 2 cauline, longer than culm; basal leaf sheath brownish, 5-15 cm, margin thickly membranous, basal few bladeless; leaf blade 35-120 × 0.8-2.6 cm or longer, flat, stiff, subleathery, base folded, margin scabrous near apex. Involucral bracts 3-5, leaflike, at base of inflorescence and branches, basalmost much longer than inflorescence, not sheathing. Inflorescences paniculate, ovoid-globose to subglobose, 3-7 × 4.5-6 cm, with many spikes; rachis and rachilla angles scabrous. Spikes obovoid, becoming globose when mature, 3-7 × 3-6 mm, with many glumelike bracts. Glumelike bracts brown, spirally and imbricately arranged, obovate, ca. 2 mm, mid-veined, each subtending a pseudospikelet, apex rounded and mucronate. Pseudospikelets ca. 1.5 mm, with 2 glumes, 2 male flowers, and 1 female flower; glumes brown, lateral and opposite, cymbiform, ca. 1.2 mm, membranous, keeled, connate on adaxial side, spinulose on keel, each with a male flower. Filaments slender; anthers narrowly oblong. Stigmas 2. Nutlet dark grayish brown, subglobose, 2-2.5 mm (including rostrum), compressed, longitudinally rugose, apex conically rostrate. Fl. and fr. Apr-Aug.
More
A sedge.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.9
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses food medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hypolytrum nemorum unspecified picture

Distribution

Hypolytrum nemorum world distribution map, present in Andorra, Bangladesh, China, Fiji, Indonesia, Lao People's Democratic Republic, Moldova (Republic of), Myanmar, Philippines, Solomon Islands, Thailand, Taiwan, Province of China, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:73918-3
WFO ID wfo-0000445228
COL ID 3NX5Q
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hypaelyptum nemorum Hypolytrum latifolium Hypolytrum nemorum Hypolytrum penangense Schoenus nemorum Hypolytrum anomalum Tunga diandra Hypolytrum latifolium var. depauperatum Hypolytrum latifolium var. minus Hypolytrum latifolium var. penangense

Lower taxons

Hypolytrum nemorum subsp. fuscorubens Hypolytrum nemorum subsp. nemorum Hypolytrum nemorum var. proliferum Hypolytrum nemorum subsp. vitiense