Carex baccans Nees

Crimson seeded sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Rhizome short, stout, woody. Stems usually robust, loosely tufted, erect, triquetrous or trigonous, smooth, 60-150 cm by up to 5 mm, the base surrounded by reddish, bladeless sheaths splitting in front into reticulate fibres. Leaves all over the stem, often overtopping the inflorescence, long-attenuate, coriaceous, flat or with revolute margins, asperous on the upper surface in the apical part, with scabrous margins, 5-18 mm wide; sheaths long, often splitting up in front. Inflorescence paniculate, compound or decompound, oblong, occupying 1/3-1/2 of the stem, erect or somewhat nodding at the top; partial panicles 5-8, single at the nodes, much branched, upper approximate, lower distant on long-exserted, smooth or scabrid peduncles. Lower bracts usually much overtopping the inflorescence, foliaceous, long-sheathing, upper much reduced. Spikelets very numerous, androgynous, suberect to patent, 2.5-8 cm long; female part cylindrical, densely flowered, usually longer than the slenderer male part. Glumes ovate or oblong-ovate, acute to subobtuse, glabrous or hispidulous, strongly nerved, purplish or castaneous with whitish-hyaline margins, muticous or the midrib excurrent in a scabrid mucro, 2.5-3.5 nun long. Utricles inflated, obscurely trigonous, obovoid to subglobose, patent, subcoriaceous, strongly nerved, glabrous except for the hispidulous margins at the apex, shining, at first yellowish green, ultimately red and more or less succulent, 3.5-4.5 mm long, abruptly beaked; beak recurved, bidentate. Nut triquetrous, ellipsoid, with flattish or shallowly concave faces, dark brown, 2¾-3 mm long. Style-base not thickened. Stigmas 3.
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Rhizome woody. Culms densely tufted, erect and robust, 80-150 × 0.5-0.6 cm, trigonous, glabrous, leafy below middle. Leaves longer than culms, flat, 8-12 mm wide, glabrous abaxially, scabrid adaxially; basal persistent leaf sheaths red-brown, reticulate. Involucral bracts leafy, longer than inflorescence, long sheathed. Panicle compound, 10-35 cm, 3-8-branched; inflorescence branches single, oblong, 5-6 × 3-4 cm; peduncles of inflorescence branches rigid, basal one 12-14 cm, upper ones gradually shorter, usually enclosed in sheaths; inflorescence axes bluntly triquetrous, subglabrous; bractlets glumelike, lanceolate, 3.5-4 mm, leathery, only basal one with short sheath, others sheathless, awned. Spikes numerous, bisexual and androgynous, arising from utriculiform cladoprophylls, cylindric, 3-6 cm; male part of spike tenuous, few flowered, 1/3-1/2 length of female part; female part with dense and numerous flowers; male glumes chestnut, broadly ovate, 2-2.5 mm, membranous, apex awned; female glumes purplish brown or chestnut, broadly ovate, 2-2.5 mm, papery, with 1 green midrib, margins hyaline, apex awned. Utricles red to purplish red at maturity, shining, obovate-globose or subglobose, inflated, 3.5-4.5 mm, subleathery, with many vertical veins, upper margins hairy, base shortly stipitate, apex shortly beaked, orifice minutely 2-toothed. Nutlet brown at maturity, elliptic, trigonous, 3-3.5 mm, base shortly stipitate, apex apiculate; style base not thickened; stigmas 3.
A sedge.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.8 - 1.5
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

In damp thickets, open places in forests, in the mossy forest on the higher mountains, sometimes in mountain savannahs, or as pioneer in the Sandsea and on fresh landslides, on volcanoes, talus; (600-)1000-3300 m.
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It grows in wetlands.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-10

Usage

Uses animal 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

Carex baccans unspecified picture

Distribution

Carex baccans world distribution map, present in Argentina, Bangladesh, China, Indonesia, India, Iceland, Lao People's Democratic Republic, Myanmar, Malaysia, Nepal, Philippines, Papua New Guinea, Thailand, Taiwan, Province of China, and Viet Nam

Conservation status

Carex baccans threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:298747-1
WFO ID wfo-0000344790
COL ID R88R
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Carex recurvirostra Carex baccans Carex baccans f. aurantiaca Carex baccans f. nigra Carex baccans f. recurvirostris Carex curvirostris Carex javanica Carex baccans var. siccifructus