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WILD LOBAU
BUTTERCUP FAMILY

THE BUTTERCUP FAMILY (Ranunculaceae)

This family includes such visually different flowers as buttercups, anemones and hepatica as well as spurred flowers including delphinium and aquilegia. The evolutionary relationship of these diverse members has been established as a result of molecular studies and, for example, all contain a toxin called protoanemonin, harmful to both humans and animals, which is transformed to a less toxic form, anemonin, when the plant is dried. Ranunculaceae are mostly herbaceous plants, but with some woody climbers (such as Clematis).

Leaves are palmate, usually divided or lobed, rarely simple. Flowers may be solitary, but are frequently found aggregated in clusters such as cymes, panicles, or spikes. Many species have no true petals, and the flower is surrounded by a brightly coloured group of sepals called a calyx. There are usually five sepals per flower, though they come in a wide variety of shapes. Ranunculus (buttercups) is the only genus in this family with a true calyx and corolla. It is unusual that the most familiar flowers of the family prove untypical in this way.

(source: Wikipedia)

Click on a thumbnail photo to go to full photo and description.

Lesser Celandine in Lobau Meadow Buttercup in Lobau Yellow Anemone in Lobau Wood Anemone in Lobau Shining meadow rue Field Larkspur
Lobau Location
QUICK KEY

Leaf Types (Simplified)

Icon
Shape
Veins
Simple parallel leaf-vein diagram
Simple
Parallel
Simple pinnate leaf-vein diagram
Simple
Pinnate
Lobed pinnate leaf-vein diagram
Lobed
Pinnate
Compound pinnate leaf-vein diagram
Compound
Pinnate
Trifoliate3-pinnate leaf-vein diagram
Trifoliate
3-Pinnate
Simple palmate leaf-vein diagram
Simple
Palmate
Lobed palmate leaf-vein diagram
Lobed
Palmate
Compound palmate leaf-vein diagram
Compound
Palmate
Other and various leaf-vein arrangments diagram
Other
Various

Flower Types (Simplified)

Icon
Symmetry
Petals
Radial symmetry and 3 petals flower type diagram
Radial
3 or multiple 3s
Radial symmetry and 4 petals flower type diagram
Radial
4
Radial symmetry and 5 separate petals flower type diagram
Radial
5, Separate
Radial symmetry and 5 tubular petals flower type diagram
Radial
5, Tubular
Radial symmetry and 5 tubular base flower type diagram
Radial
5,Tubular base
Radial symmetry and 5 bell-shape petals flower type diagram
Radial
5, Bell shape
Bilateral symmetry and 5 separate petals flower type diagram
Bilateral
5, Separate
Bilateral symmetry and 5 lipped petals flower type diagram
Bilateral
5, Lipped
Bilateral symmetry and winged petals flower type diagram
Bilateral
Butterfly form
Bilateral symmetry and tubular flower type diagram
Bilateral
Tubular
Spurred flower type diagram
.
Spurred
Stellate composite flower type diagram
Stellate
Composite
Structured clusters flower type diagram
Structured Clusters
5, small
Anomalous flower type diagram
Anomalous
.
Inconspicuous flower type diagram
Inconspicuous
.

Inflorescence Types (Simplified)

Icon
Type
Capitulum
Umbel flower head inflorescence type diagram
Umbel
Spike-like flower head inflorescence type diagram
Spike-like
Branched flower head inflorescence type diagram
Branched
Whorled flower head inflorescence type diagram
Whorled
Clustered flower head inflorescence type diagram
Clustered
Single

Lesser Celandine
 in Lobau

© 2011 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
simple 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
simple 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --simple (undivided/entire).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • heart or kidney-shaped, highly glossy leaves with long stalk (petiole).
  • Radial symmetry and 5 or more separate petals
flower type diagram
    • Radial symmetry and 5 or more separate petals
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --radial (star-shaped as seen from above).
    • Petals:
    • --5 or more, separate (not joined).
    • This plant:
    • 15-40mm diameter. 8-11 highly glossy petals and 3-5 yellow sepals
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Single
 inflorescence diagram
    • Single 
 inflorescence diagram
    • INFLORESCENCE TYPE
    • Single
    • --each flower stem carries a single solitary flower.
    • This plant:
    • flowers (and leaves) emerge on long stalks from a stem at ground level
  • 05 to 15 cm
  • Mar Apr May
  • Woodland

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Lesser Celandine
Ranunculus ficaria
Other common name(s):
German name(s): Frühlings-Scharbockskraut, Feigwurz
ITIS Serial #: 18603
Date:
12 April, 2012

This is a low-growing hairless perennial found in deciduous woodland areas. It blooms early in Spring, before tree leaf development fully shades the ground. At the end of May the above-ground plant dies back and remains dormant until the following season.

Both leaves and flowers are highly glossy, a feature that distinguishes them from other woodland flowers blooming at the same time. Petals can vary in number between 8 and 11 and the sepals are usually 3 (sometimes 5). This variability is a rather atypical arrangement in flowering plants.

Leaves are fleshy dark green and heart-shaped. They contain high quantities of vitamin C and have been used in the past to compensate the lack of fresh fruits and vegetables available in early spring. (The German name is ‘Scorbut-weed’ (Skorbuts- or Scharbockskraut) referring to the disease caused by lack of vitamin C.)

  • !?!
    • 
Origin of name Celandine
    • The name Celandine comes from the Latin Chelidonia, meaning swallow. This was because it was said the flowers bloomed when the swallows arrived in spring and faded when they left at the end of May.
  • !W!
    • 
whole plant of lesser celandine showing rosette growth form
    • rosette growth form with flowering stems and leaves emerging from base at ground level
Creeping Buttercup
 in Lobau

© 2011 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
lobed 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
lobed 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --lobed (indented form).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • 3-lobed leaves, each lobe or leaflet deeply notched, higher up stem leaves may be smaller with simple or lanceolate leaflets
  • 
Radial symmetry and 5 separate petals
flower type diagram
    • 
Radial symmetry and 5 separate petals
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --radial (star-shaped as seen from above(.
    • Petals:
    • --5, separate (not joined).
    • This plant:
    • broad shiny petals with cluster of numerous stamens in centre
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Single
 inflorescence diagram
    • 
Single 
 inflorescence diagram
    • INFLORESCENCE TYPE
    • Single
    • --each flower stem carries a single solitary flower.
    • This plant:
    • flowers carried singly on long erect stalks arising from leaf axils
  • 10to 50 cm
  • May Jun Jul Aug
  • damp meadows

    damp woodland

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Creeping Buttercup
Ranunculus repens
Other common name(s):
German name(s): Kriech-Hahnenfuss
ITIS Serial #: 18642
Date:
07 July, 2011

Buttercups are an introduced species across most of the world, originally from Alaska and Greenland where they are thought to be native.

It is a perennial plant that spreads by rooting from leaf nodes along its prostrate stems. The flowering stems are more or less erect. Leaf stems are long and both leaves and stems may be finely hairy.

Flowers are 2-3cm in diameter. Each of the five bright yellow, shiny petals has a nectar pocket at its base, containing a sugary substance which attracts pollinating insects. The hairy sepals, green at first, become yellow as the flower matures.

The fruit is a cluster of hard seeds called achenes, each with a short 'beak'.

Buttercups are poisonous and may cause vomiting in cattle that inadvertently eat them along with a bite of meadow grass though the taste is bitter so they usually avoid them. (The plants can then take advantage of the cropped area around them to spread more easily. ) Once the plants are dried however, they lose their bitter taste and the poison becomes ineffective so dried hay containing buttercups is not harmful.

  • !L!
    • 
basal leaves of creeping buttercup with three broad leaflets, each with deep irregular notches and teeth
    • basal leaves with three broad leaflets, each with deep irregular notches and teeth
  • !D!
    • 
Varying degrees of hairiness, here on sepals of flower bud
    • Varying degrees of hairiness, here on sepals of flower bud

Yellow anemone
 in Lobau

© 2011 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
compound 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
compound 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --compound (leaf deeply sub-divided; each ‘lobe’ forms separate leaflet).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • at flowering, 3 short stalked or sessile (stalksless), deeply dissected leaves grow out from same point on stem just beneath the flowers.
  • 
Radial symmetry and 5 or more separate petals
flower type diagram
    • 
Radial symmetry and 5 or more separate petals
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --radial (star-shaped as seen from above).
    • Petals:
    • --5 or more, separate (not joined).
    • This plant:
    • flowers 1.5-2cm diameter, petals and sepals undifferentiated (tepals), 5-8 in number.
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Single
 inflorescence diagram
    • 
Single 
 inflorescence diagram
    • INFLORESCENCE TYPE
    • Single
    • --each flower stem carries a single solitary flower.
    • This plant:
    • Each flower carried on a long stalk, although from 1-3 flowers may emerge from a single leaf whorl.
  • 10 to 20 cm
  • Apr May
  • Woodland (damp)

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Yellow Anemone
Anemone ranunculoides
Other common name(s):
German name(s): Gelbes Windröschen
ITIS Serial #: 181878
Date:
03 April, 2011

This plant is herbaceous, dying back down to its root-like rhizomes by mid summer. The rhizomes spread just below the earth surface and multiply quickly, contributing to its rapid spread in woodland conditions.

The leaves grow in a whorl just below the point on the stem where the long flower stalks (usually 2) arise. They are so deeply dissected, the lobes appear to be almost completely separate (compound leaf). The lobes themselves have irregular tooth-like (dentate) margins.

The flower is about 1.5-2cm in diameter, with from five to eight petal-like segments of rich yellow colouring. These are in fact tepals, so-called when petals and sepals are of similar shape and colour or undifferentiated.

Seeds (carpels) are carried in a cluster, see photo button !S! below.

The whole plant is poisonous, containing, amongst others, the toxin protanemonin that causes sickness and diarrhea.

  • !?!
    • 
Yellow Anemone seeds are dispersed partly with the help of ants.
    • The seeds of the yellow Anemone produce fleshy attachments called elaiosomes that are rich in fats and proteins and attract ants. The ants gather the seeds and carry them away to their nests when they consume the elaeosomes and abandon the seeds – and effective means of seed dispersal.
  • !S!
    • 
Yellow Anemone, cluster of carpels (seeds)
    • Cluster of carpels containing developing seeds.
  • !L!
    • 
Yellow Anemone, side view of leaf whorl and flower.
    • Single stem with whorl of deeply dissected leaves from which (usually) 2 flower stalks arise.
Wood Anemone
 in Lobau

© 2011 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
compound 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
compound 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --compound (leaf deeply sub-divided; each ‘lobe’ forms separate leaflet).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • each palmate subdivision (leaflet) is itself deeply lobed giving an overall delicately feathery appearance. 3 compound dentate leaves form a whorl below the single flower.
  • 
Radial symmetry and 5 or more separate ‘petals’
flower type diagram
    • Radial symmetry and 5 or more separate ‘petals’
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --radial (star-shaped as seen from above).
    • Petals:
    • --5 or more, separate (not joined).
    • This plant:
    • what appear as petals are in fact 6-8 tepals composed of undifferentiated sepals and petals in 2 rings. Numerous yellow anthers carried on white filaments. Tepals sometimes pinkish on underside.
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Single
 inflorescence diagram
    • 
Single 
 inflorescence diagram
    • INFLORESCENCE TYPE
    • Single
    • --each flower stem carries a single solitary flower.
    • This plant:
    • Usually 1 flower only per plant, occasionally 2.
  • 10 to 25 cm
  • Mar Apr
  • Woodland

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Wood Anemone
Anemone nemorosa
Other common name(s): Windflower, Thimbleweed
German name(s): Buschwindröschen, Hexenblume, Geissenblümchen
ITIS Serial #: 181875
Date:
O4 April 2011

This is a herbaceous perennial plant, dying back after flowering an fruiting to survive the rest of the year as an underground root-like stem (rhizome). The rhizomes can spread rapidly in favourable conditions producing numerous offshoots per plant and carpeting large areas.

It is an early flowering plant, making use of the availability of light before tree foliage shades the woodland floor. Flowers approx. 2cm diameter, closing at night and in cold conditions.

The fruits develop as clusters of single seeds (carpels), each with a short extension (elaiosome) containing fats and proteins that attract ants who collect them and carry them to their nests, so aiding the process of seed dispersal.

  • !?!
    • 
All parts of Wood anemone are poisonous
    • All parts of this plant are poisonous, containing protoanemonin, a toxin that can cause severe skin and gastric irritation, nausea, vomiting and diarrhea.

Shining Meadow Rue
 in Lobau

© 2013 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
compound 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
compound 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --compound (leaf deeply sub-divided; each ‘lobe’ forms separate leaflet).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • the basic pattern of the leaves is confusing as the leaflets are subdivided and very different near the base from higher up the plant (!L! button)
  • 
Anomalous symmetry and petals
flower type diagram
    • 
Anomalous symmetry and petals
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --anomalous (flower structure is bizarre and doesn’t fit into standard categories)
    • Petals:
    • This plant:
    • petals absent, sepals often fall during booming leaving visible only mass of long creamy-white stamens with yellow anthers
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Branched 
inflorescence diagram
    • 
Branched 
inflorescence diagram
    • INFLORESCENCE TYPE
    • Branched
    • --flowers bunched together at the end of each stem in a variety of branching arrangements.
    • This plant:
    • upright masses of conspicuous, hairy flowers at tips of branches
  • 60 to 120 cm
  • Jun Jul
  • damp grasslands

    scrub

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Shining Meadow Rue
Thalictrum lucidum
Other common name(s):
German name(s): Glanz-Wiesenraute, Glänzende Wiesenraute
ITIS Serial #:
Date:
01 July, 2013

This is a potentially endangered species and should never be picked. Although it usually favours damp grassland it can also be found on dry grassland or in open woodland or scrub.

It is tall perennial plant, (up to 120cm high( and carries at the tips of its branches masses of scented, pale creamy flowers looking like dense, hairy clusters that conspicuously reflect the sunlight.

The lower leaves on the plant are paler green and with broad leaved, coarsely dentate leaflets whereas the leaves further up the stem have narrow, feathery leaflets, dark, shiny green and with a prominent mid-rib.

  • !L!
    • 
The stem  of Shining Meadow Rue showing broad-leaved, pale green compound leaves near the base and darker green, narrow, feathery leaflets with a prominent mid-rib further up
    • The stem showing broad-leaved, pale green compound leaves near the base and darker green, narrow, feathery leaflets with a prominent mid-rib further up
  • !W!
    • 
Whole plant of Shining meadow rue showing upright masses of conspicuous, hairy flowers at tips of branches
    • Whole plant showing upright masses of conspicuous, hairy flowers at tips of branches

Field Larkspur
 in Lobau

© 2012 Margaret Eros

LEAF TYPE
PETAL TYPE
INFLORES- CENCE TYPE
HEIGHT OF PLANT
FLOWERING MONTH
HABITAT
PHOTO LOCATION
  • diagram of 
<!--Next: FOR BLIND LEAF SHAPE ICON.-->
compound 
<!--Next brown section: FOR BLIND LEAF VEIN ICON.-->
 leaf shape and 
palmate 
vein structure
    • diagram of 
<!--Next: FOR BLIND POPUP LEAF SHAPE.-->
compound 
leaf shape 
<!--Next: FOR BLIND POPUP LEAF VEIN ICON.-->
and 
palmate 
vein structure
    • LEAF TYPE
    • Shape:
    • --compound (leaf deeply sub-divided; each ‘lobe’ forms separate leaflet).
    • Veins:
    • --palmate (main veins radiate from leaf base like fingers of a hand).
    • This plant:
    • Leaf divided and sub-divided into fine, feathery fronds.
  • 
Spurred petals 
flower type diagram
    • 
Spurred petals 
flower type diagram
    • FLOWER TYPE
    • Symmetry:
    • --bilateral (distinct right and left sided [mirror image])
    • Petals:
    • --spurred (flower has a distinct horn-like spur projecting backwards, may distort basic symmetry of other flower parts).
    • This plant:
    • Long, upward-tending spur extending backwards from the flower.
  • 
<!--Next: FOR BLIND INFLORESENCE ICON. -->
Branched 
inflorescence diagram
    • 
Branched 
inflorescence diagram
    • INFLORESCENCE TYPE
    • Branched
    • --various branching patterns with a single flower at the end of each branch, with or without leaves amongst them.
    • This plant:
    • Loosely branched arrangement of 5-8 flowers on long stalks.
  • 20 to 40 cm
  • May Jun Jul Aug
  • Cultivated Fields

    Wayside

    • For more information, go to the “Habitats & such” tab in the menu bar.
  • diagram of photo location in the Lobau
    • diagram of photo location in the Lobau
Field Larkspur
Consolida regalis, syn. Delphinium consolida
Other common name(s): Rocket Larkspur, Forking Larkspur
German name(s): Feld-Rittersporn
ITIS Serial #: 18762
Date:
22 May, 2012

This is an endangered species! It’s an annual plant, each season a new generation grows up from seeds so it thrives on cultivated land where the soil is regularly disturbed. In recent decades however, has become increasingly rare as a result of the intensive use of herbicides.

It is difficult to recognize the connection of this delphinium-like flower with the rest of the buttercup family, mainly on account of the prominent spur that confuses perception of the flower structure. The reproductive parts, (stamens and stigma), bend upwards as the flower matures, so accentuating the bilateral symmetry.

  • !?!
    • 
All parts of Field Larkspur are poisonous.
    • All parts of this relative of the delphiniums are poisonous, particularly the seeds. The dried, no longer toxic, flowers are, however, often added to herbal teas as a decorative element on account of their strong blue colour.