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Class:angiosperms
Order:Poales
Family:Cyperaceae
EditorM. Schnittler, January 2011
Name acc. to:APGII
Herbar:list records    scans available    photo available    habitat photo available    
Description:Grasslike herbs, stem often ± triangular, without distinct nodes. Leaves linear, graslike, divided in blade and sheath, without ligules. Flowers arranged in spikelets, bisexual or unisexual; perianth absent or reduced to bristles or scales; stamens 1-3; ovary 2- or 3-carpellate, with 2 or 3 stigmas. Fruit usually a hard 2- or 3-sided nutlet.
Link to Flora of China:http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10246
open map in a new windowtaxon distribution for   acc. to Geobotanical Regions of Mongolia by Grubov (1955)
genus: 12
species: 129
Habit (i)general appearance of a plant
Growth form: (i)Herb, shrub, tree or climber.herb (i)Herbaceous, erect plant, up to 2m high, mostly with a leafy shoot; if perennial, shoots die to the ground each season, shoots are not woody
example: Artemisia pectinata

Parasite status: (i)Is the plant a half- or full parasite?no parasite/saprophyte (i)Plant fully autonomous, leaves with chlorophyll
example: Most plants, Ranunculus

Leaf (i)expanded, usually photosynthetic organ of a plant (including phylloclades)
Leaf development: (i)Structure and development of leaves.with green leaves (i)Plant with green leaves
Leaf arrangement: (i)Arrangement of leaves at the stem.alternate (i)One leaf per node; distiche: arranged in two vertical rows, equitant
example: Phragmites

Simple or divided leaves: (i)Are the leaves simple or completely divided in several parts? Blade of the leaf entire or (more or less) deeply dissected. Attention: There are various appearances of the leaf margin (from entire to toothed and lobed). Here, we ignore this and ask only for dissections that separate the leaf for more than one third of its length or width, whatever is smaller. Sometimes, it is difficult to tell apart compound leaves from a shoot system with simple leaves: look for stipulae and/or axillary buds at the ground of the leaves: if only some possess these structures, the others are most likely leaflets of a compound leaf.simple (i)Non-divided leaf, but margin may be incised nearly to the ground inherited by order Poales: simple
Shape of blade: (i)Easy for simple leaves. In compound leaves use the general shape of leaflet. Always check the ground for largest leaves of a plant. To be worked out: how to handle pinnate leaves?linear incl.grasslike or oblong (i)Leaves more than two times longer than broad with more or less parallel margins; see character: stipule for ligula
example: Dracocephalum ruyschiana, Poaceae, Scutellaria scordifolia, Pinus

Leaf margin: (i)Structure of leaf margin (or that of a leaflet in case of compound leaves). Attention: Here we ask for the leaf margin, defined as all those dissections that separate the leaf for less than one third of its length or width, whatever is smaller. To be worked out: how to handle margin of pinnate leaves?entire (i)Plain margin, not toothed
example: Iris
inherited by order Poales: entire
Petiole: (i)Leaf divided into stalk (petiole) and blade.without (i)Leaves without petiole (stalk), sessile
example: Poaceae, Iris

surrounding stem (i)Base ensheathing the shoot
example: Iris, Poaceae

Stipule: (i)Leaflets at the base of the petiole, these are smaller and of different shape.none (i)Without stipules
example: Euphorbia, Ericaceae s.l.

ligula (i)Stipulae forming a transparent, often tongue-like sheath around the stem
example: Poa

Leaf veination: (i)Arrangement of the main veins of a leaf.parallel (i)Most veins arranged parallel to the length of leaf, mostly no pronounced main vein (usually in elongate to linear leaves)
example: Most Monocotyledonae, Plantago, Veratrum, a lot of Caryophyllaceae looks like that.
inherited by order Poales: parallel
Flower (i)reproductive portion of the plant, consisting of sepals, petals, stamens, and pistils
Flower appearance and pollination: (i)General appearance of the flower.not attractive, wind-pollinated or some water plants (i)Small, colourless or green flowers
example: Betula, grasslike plants: Carex, Setaria, Juncus

Flower colour: (i)Attention: assess colour of the most colourful parts of the flower, but not of the stamens; be aware of single plants with a mutation (mostly white) on flower colour.colourless (i)Dry membranous
greenish (i)petals absent or not distinctly different from colours of leaves, only stigmas (white) or anthers (yellow) may differ in color
example: Chenopodium, Triglochin

white (i)Most plants of the population white
example: Pleurospermum, Maianthemum

Perianth arrangement: (i)Attention: in some plants, flowers may be dimorphic in different ways (dioecious or gynodioecious). If flowers vary, record the characters of the most showy flowers.absent or strongly reduced (i)No perianth leaves ensheathing stamen and/or carpels
example: Callitriche

Diameter of flower: (i)Diameter of flower or flower head. to 5 mm (i)
example: Aruncus

from 5 mm to 10 mm (i)
example: Stellaria

Sepal number: (i)Number of sepal leaves (outer perianth leaves, calyx leaves, mostly greenish). Attention, this character applies only for flowers separated in sepals and petals, thus excluding most monocots. Be aware of the bracts (involucral leaves) of Asteraceae flowerheads, do not qualify these as sepals! Be also aware in Rosaceae is often an epicalyx developed, in this case count all parts.none or rudimentary (i)Hardly visible or absent, since perianth uniform
example: All monocots with uniform perianth, many Asteraceae and Apiaceae

Petal / Tepal number: (i)Number of petal leaves (inner perianth leaves, usually coloured).none or reduced (i)But green sepals may exist
example: Thalictrum

Spur: (i)A hollow, slender, sac-like appendage of the perianth leaves, storing nectar.no spur (i)Flower without appendage
example: Peganum

Stamen number: (i)Attention: We ask for the reproductive organs of the flower dispersing pollen. Count only fully fertile stamens, not staminodia (e.g. Parnassia).1 (i)
example: Orchis

2 (i)
example: Cypripedium

3 (i)
example: Poa, Iris

Stamen fusion: (i)To which degree are the stamens fused? Attention: Whereas the pollen sacs itself are often free., their stalks (filaments) may be fused. Here, we count them as fused if they are together over at least one thirth of their length.free (i)Stamens with separate bases
example: Malus

Pistil number: (i)Number of pistils (female floral organs: style, if developed; stigma and carpels/ovary together build the pistil).1 (i)One carpel, but clearly one stigma
example: Pyrola, Primula, Alyssum

Carpel fusion: (i)To which degree are the carpels (modified leaf forming simple pistil or part of a compound pistil) fused.fused (i)Carpels united into an ovary, only styles are free
example: Malus, Berberis

Style number: (i)Portion of the pistil connecting the stigma to the ovary.1
Stigma number per style: (i)Number of stigmas per style.2 (i)Two stigmas, resulting from two fused carpels with or without developed style
3 (i)Three stigmas, resulting from three fused carpels with or without develped style
Ovary position: (i)For entirely or partly fused carpels, describe their position in relation to the insertion point of perianth leaves (best done by doing a longitudinal section of a flower).superior (hypogynous) (i)Base of carpels attached above insertion point of perianth leaves, carpels free or fused
example: Delphinium, Anemone

Sex: (i)Distribution of male and female organs among flowers, only most commonly cases.bisexual, hermaphrodite (i)All or nearly all flowers of a plant with male and female parts
example: Haplophyllum, Chenopodium

unisexual (i)
example: Rhodiola

Inflorescence (i)flowering part of a plant, describes the arrangement of the flowers on the flowering axis
Inflorescence: (i)Structure of the inflorescence.Flowers in inflorescence (i)No solitary flowers
Appearance: (i)Outer look of the inflorescence.terminal (i)Inflorescence is the highest point of the plant and may consist of a single flower only
example: Cypripedium, Rhaponticum, Ligularia sibirica, Echinops

axillary (i)Usually several inflorescences in axillary shoots or single flowers in leaf axils, main shoot remains mostly leafy
example: Tragopogon, Aconogonon

Fruit (i)the seed bearing organ, with or without adnate parts; a ripened ovary and any other structures which are attached and ripen with it. Aggregate fruits are handled like simple fruits for determination.
Consistency: (i)Fleshy fruits or dry fruits, see dispersal adaptations for further classification.dry (i)With a dry outer shell, no fleshy parts, but seed (embryo) could be edible
Type of fruit: (i)Common fruit types (including pseudocarp).Indehiscent fruits
Solitary fruits (i)
nut or nutlet (i)Dry fruit with a single, hard stone inside (and usually a large often edible embryo)
Opening of fruit: (i)Mode of dehiscence at maturity to release seeds.not opening / indehiscent (i)Fruits remain closed at maturity and disperse with seeds inside
example: Corylus (nut), Vaccinium (berry)

Size of fruit: (i)Size of the fruit including appendage. from 5 mm to 10 mm (i)
example: Silene: small capsule opening with teeth

Dispersal: (i)Appearance of fruit or seed (if single) and adaptations to dispersal.Otherwise (i)All parts dry, no conspicuous adaptations
Shoot/Stem (i)a young stem or branch
Cross section: (i)Shape of the cross section of a stem or shoot (look at first to second year shoots).triangular (i)Stem or shoot with 3 angles
example: Carex

Root / shoot below ground (i)plant part below ground (in most cases), including below ground shoots, without leaves
Root type: (i)Organisation of the roots.homorhizous (i)Many equal roots
example: Monocotyledonae
inherited by order Poales: homorhizous