Class: | angiosperms |
Order: | Dipsacales |
Family: | Valerianaceae |
Editor | E. Dauber & S. Rilke, in preparation |
Name acc. to: | APGII |
Herbar: | list records |
Description: | Herbaceous plants. Inflorescence a terminal, dichasial cyme. Flower scarcely zygomorphic, calyx absent, reduced to small teeth or forms a pappus persisting in fruit, Corolla sometimes with small spur, stamen 3 or 4. Fruit an achene, sometimes with pappus or scarious wing. |
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| genus: 2 |
| species: 12 |
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
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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
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Leaf (i)expanded, usually photosynthetic organ of a plant (including phylloclades) | |
Leaf arrangement: (i)Arrangement of leaves at the stem. | opposite, opposite-decussate (i)Two leaves per node example: Lamiaceae, e.g. Phlomis
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Leaf veination: (i)Arrangement of the main veins of a leaf. | pinnate (i)One main vein, several side veins, sometimes inconspicuous example: Cicerbita
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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
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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 yellow to orange (i)Pale to golden yellow example: Ranunculus, Crepis purple to violet (i)All colors between purple and violet, often changing with flower age example: Pulmonaria
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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
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Diameter of flower: (i)Diameter of flower or flower head. | from 10 mm to 20 mm (i) example: Potentilla
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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 zygomorphic (i)One axis of symmetry, monosymmetrical flowers example: Pedicularis, Nepeta, Viola
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Flower form: (i)common forms of flowers ? Veronica | tubular to funnel-shaped (i)Petals form a tube, are often partially united to a cylindrical corolla, often surrounded by a calyx
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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
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Petal / Tepal fusion: (i)To which degree are the petal leaves connected? Petals sympetalous. | fused (i)petal leaves united, only tips are free (gamopetalous, sympetalous) example: Linnaea, Adenophora, Stellera
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Spur: (i)A hollow, slender, sac-like appendage of the perianth leaves, storing nectar. | no spur (i)Flower without appendage example: Peganum one (i)One leaf with a spur example: Linaria, Delphinium
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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). | 3 (i) example: Poa, Iris 4 (i)Extremely rare, may be absent example: Plantago
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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
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Style number: (i)Portion of the pistil connecting the stigma to the ovary. | 1
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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). | inferior (i)Ovary below the point where perianth leaves are inserted, always fused to an ovary example: Vaccinum
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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. | |
Type of fruit: (i)Common fruit types (including pseudocarp). | Indehiscent fruits achene (i)A small, dry, indehiscent fruit with a single seed example: Asteraceae, Apiaceae (schizocarp), Dipsacaceae, Rosaceae, Ranunculaceae nut or nutlet (i)Dry fruit with a single, hard stone inside (and usually a large often edible embryo)
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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 Dipsacales: allorhizous
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