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Class:angiosperms
Order:Caryophyllales
Family:Droseraceae
Genus:Drosera
Scientific name: Drosera rotundifolia L.
Name acc. to:Gubanov 1996
Link to Flora of China:http://www.efloras.org/browse.aspx?flora_id=2&name_str=Drosera+rotundifolia
open map in a new windowtaxon distribution for Drosera rotundifolia acc. to Geobotanical Regions of Mongolia by Grubov (1955)
Habitat:Sphagnum bogs (Grubov 2001).
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
inherited by family Droseraceae: herb
Smell & Touch: (i)General appearance of the plant.plant sticky to the touch (i)Surface of leaves and/or shoot covered with sticky glands
example: Lychnis viscaria, Drosera rotundifolia
inherited by genus Drosera: plant sticky to the touch
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
inherited by family Droseraceae: no parasite/saprophyte
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 inherited by family Droseraceae: with green leaves
Leaf arrangement: (i)Arrangement of leaves at the stem.basal rosette (i)Leaves positioned at the base of the stem; stem often without leaves, no visible internodes (but flowers often on erect stems, and these may have few leaves)
example: Limonium, Potentilla, Plantago; also used in Liliales with basaly crouwded leaves (Tofieldia, Zigadenus etc.)
inherited by family Droseraceae: basal rosette
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 family Droseraceae: 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?elliptic (including ovate and obovate) (i)Elliptic: broadest at the middle and narrower at the two equal ends; ovate: egg-shaped, attached at the broad end; obovate: attached at the narrower end
example: Limosella aquatica

round to orbicular (i)Leaf at least as broad as long
example: Pyrola rotundifolia, Caltha

Length of leaves: (i)How long is the leaf, be carefull in compound leaves, measure the complete leaf. from 21 mm to 50 mm
Petiole: (i)Leaf divided into stalk (petiole) and blade.with (i)Leaves with petiole (stalk)
Leaf veination: (i)Arrangement of the main veins of a leaf.pinnate (i)One main vein, several side veins, sometimes inconspicuous
example: Cicerbita
inherited by family Droseraceae: pinnate
Flower (i)reproductive portion of the plant, consisting of sepals, petals, stamens, and pistils
Flower appearance and pollination: (i)General appearance of the flower.attractive, animal-pollinated (i)attractive and coloured flowers, mostly large, attracting surely animals
example: Trollius, Rosa, Chamaerhodos
inherited by family Droseraceae: attractive, animal-pollinated
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.white (i)Most plants of the population white
example: Pleurospermum, Maianthemum
inherited by family Droseraceae: white
pink (i)Between red and white
example: Centaurium
inherited by family Droseraceae: pink
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.double, different (i)Two types of perianth leaves, differently coloured (sepals: outer periant leaves, usually greenish, and petals: inner perianth leaves, usually coloured)
example: Parnassia
inherited by family Droseraceae: double, different
Diameter of flower: (i)Diameter of flower or flower head. from 5 mm to 10 mm (i)
example: Stellaria
inherited by family Droseraceae:
Flower symmetry: (i)Symmetry of the perianth leaves. Attention: to assess this character, look on sepals, petals and stamens, but neglect carpels and ovary.radiary, regular (actinomorphic) (i)More than two axis of symmetry
example: Saxifraga: 5; Iris: 3
inherited by family Droseraceae: radiary, regular (actinomorphic)
Flower form: (i)common forms of flowers ? Veronicasimple (flat) - Do not confuse with inflorescences as in some Asteraceae (i)Petals spread out, flower appearing flat
example: Mollugo, Trientalis, Pulsatilla, Saxifraga
inherited by family Droseraceae: simple (flat) - Do not confuse with inflorescences as in some Asteraceae
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.5 (i)
example: Polemonium
inherited by family Droseraceae: 5
Sepal fusion: (i)To which degree are the sepal leaves connected? 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!free (i)All leaves separate from each other
example: Geranium
inherited by family Droseraceae: free
Petal / Tepal number: (i)Number of petal leaves (inner perianth leaves, usually coloured).5 (i)
example: Potentilla
inherited by family Droseraceae: 5
Petal / Tepal fusion: (i)To which degree are the petal leaves connected? Petals sympetalous.free (i)all petal leaves separate from each other
example: Anthriscus
inherited by family Droseraceae: free
Spur: (i)A hollow, slender, sac-like appendage of the perianth leaves, storing nectar.no spur (i)Flower without appendage
example: Peganum
inherited by family Droseraceae: no spur
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).5 (i)
example: Peucedanum
inherited by family Droseraceae: 5
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
inherited by family Droseraceae: free
Pistil number: (i)Number of pistils (female floral organs: style, if developed; stigma and carpels/ovary together build the pistil).3 (i)Three stigmas, usually in a triangle
example: Stellaria, Euphorbia, Campanula, Allium
inherited by family Droseraceae: 3
5 (i)Five stigmas, usually in a whorl
example: Cerastium
inherited by family Droseraceae: 5
Carpel number: (i)Number of carpels (carpel: forming a simple pistil or part of a compound pistil, modified leaf).3 inherited by family Droseraceae: 3
4 inherited by family Droseraceae: 4
5 inherited by family Droseraceae: 5
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
inherited by family Droseraceae: fused
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
inherited by family Droseraceae: superior (hypogynous)
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
inherited by family Droseraceae: bisexual, hermaphrodite
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 inherited by family Droseraceae: Flowers in inflorescence
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
inherited by family Droseraceae: terminal
Inflorescence type: (i)Types of inflorescence. Attention: We here ask for the botanical nomenclature of inflorescences, which is sufficiently complicated. Tick only, if you are certain, or tick all inflorescence types that appear similar of these of the plant in question.cyme (i)A branched inflorescence, where the main shoot soon ends in a flower, being overtopped by one ore more shoots; attention: the flowers are often very crowded and the type difficult to identify (Lamiaceae)
example: Lamiaceae, Caryophyllaceae, Mollugo cerviana, Panzerina
inherited by family Droseraceae: cyme
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 inherited by family Droseraceae: dry
Type of fruit: (i)Common fruit types (including pseudocarp).Solitary fruits (i) inherited by family Droseraceae: Solitary fruits
capsule (i)Dry dehiscent fruit, releasing seeds by slits or holes.
example: Poppy, most Caryophyllaceae, Cerastium, a lot of Scrophulariaceae, Iris (oppened capsule looks like Delphinium), Zygophyllum - it is a very common fruit type
inherited by family Droseraceae: capsule
Dehiscent fruits (i)Fruits open along a longitudinale line (except silicula) inherited by family Droseraceae: Dehiscent fruits
Opening of fruit: (i)Mode of dehiscence at maturity to release seeds.opening / dehiscent (i)Dry? Fruits opening with different types inherited by family Droseraceae: opening / dehiscent
Size of fruit: (i)Size of the fruit including appendage. to 5 mm (i)
example: Halerpestes: many folicles forming dry nutlets
inherited by family Droseraceae:
from 5 mm to 10 mm (i)
example: Silene: small capsule opening with teeth
inherited by family Droseraceae:
Hairs
Has hairs?:has hairs inherited by family Droseraceae: has hairs
Hairs: (i)Appearance, structure, coverage of hairs on plant.on leaf (i)Hairs on upper side, lower side or on margin of leaf inherited by family Droseraceae: on leaf
coverage: dense (i)Hairs reach each other if bent together
example: Ptilotrichum canescens
inherited by family Droseraceae: coverage: dense
leaf upper side (i)Has hairs on leaves upper side (blade) inherited by family Droseraceae: leaf upper side
structure: glands (i)Plant appears sticky
example: Cerastium glutinosum, Droseraceae
inherited by family Droseraceae: structure: glands
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.allorhizous (i)Plant with a conspicuous tap root, one larger tap root with side roots
example: Dicotyledonae
inherited by order Caryophyllales: allorhizous
Distribution (i)region where the plant is likely to be found
Distribution (Veg. Zones): (i)acc. to Grubov 1952Khentei (i)In distribution data often named as '2'
acc. to: Gubanov 1996
Plant Status
Red list status: (i)Rare Mongolian plantsvery rare (Shiirevdamba 2007) (i)Very rare plant