Daisy Family - Small Groups

Sea Aster Trifid Bur-marigold Hemp-agrimony Rough Cocklebur



Daisy Family - Asteraceae

Sea Aster      Tripolium pannonicum

Native throughout the whole of Eurasia. A plant of saltmarshes. Leaves thick and fleshy. Most plants have pale lilac petals but these can be absent in some plants (usually called the 'rayless' form), leaving just the central cluster of yellow florets.

Sea Aster Sea Aster Sea Aster Sea Aster
Habit
Habit
Flowerheads
Flowerhead
Sea Aster Sea Aster Sea Aster Sea Aster
Phyllaries
Leaf
'Rayless' form
'Rayless' form


Rayless Chamomile      Anthemis rigida

Native Sicily and the eastern Mediterranean. Common in dry, gravelly places, especially along roadsides.

Rayless Chamomile Rayless Chamomile Rayless Chamomile Rayless Chamomile
Habit
Habit
Habit
Flowerheads
Rayless Chamomile Rayless Chamomile Rayless Chamomile
Flowerhead
Phyllaries
Leaf


Yellow Buttonweed      Cotula coronopifolia

Native to southern Africa but now well-established in seasonally wet ground in many parts of the world. Flowerheads relatively large for this group, growing up to 12mm in diameter; leaves with bases sheathing the stems and the whole plant is slightly succulent.

Yellow Buttonweed Yellow Buttonweed Yellow Buttonweed Yellow Buttonweed
Habit
Habit
Flowerhead
Phyllaries
Yellow Buttonweed Yellow Buttonweed
Leaf
Leaf bases suround stem


Trifid Bur-marigold      Bidens tripartita

Native across most of Eurasia and North America. Typically in damp places.

Trifid Bur-marigold Trifid Bur-marigold Trifid Bur-marigold Trifid Bur-marigold
Habit
Flowerhead
Phyllaries
Leaf


Spanish-needles      Bidens bipinnata

Native to North America but widely introduced throughout much of the warmer parts of the world, including southern Europe.

Spanish-needles Spanish-needles Spanish-needles
Habit
Flowerhead
Phyllaries
Spanish-needles Spanish-needles Spanish-needles Spanish-needles
Leaf
Leaf
Young seedhead
Seedhead


Rough Cocklebur      Xanthium strumarium

Native from southern Europe eastwards to China. A branching annual which may grow to a metre in height but is often much smaller. A very variable species in the shape of its leaves, which are broad and variously toothed or lobed. The leaves are distinct in their very rough surfaces which can feel like sandpaper to the touch.

Rough Cocklebur Rough Cocklebur Rough Cocklebur Rough Cocklebur
Habit
Habit
Flowers
Leaf
Rough Cocklebur Rough Cocklebur
Seed capsules
Seed capsule


Spiny Cocklebur      Xanthium spinosum

Native throughout most of the Americas and widely introduced as an arable weed in much of the Old World. A branching annual which may grow to 80cm in height but is often much smaller. The yellowish stem spines and dark green leaves with pale midribs are distinctive. If plants reach maturity, the hooked seed capsules are very distinctive late in the year.

Spiny Cocklebur Spiny Cocklebur Spiny Cocklebur Spiny Cocklebur
Habit
Young flowers
Flowers
Leaves and spines


Hemp-agrimony      Eupatorium cannabinum

Native throughout Europe and western Asia. A tall, clump-forming perennial, growing to over 150cm in height and favouring damp ground or close to water. As with many red- or pink-flowered species, occasional plants may be found with white flowers.

Hemp-agrimony Hemp-agrimony Hemp-agrimony Hemp-agrimony
Habit
Habit
Flowers
Flowers
Hemp-agrimony Hemp-agrimony Hemp-agrimony Hemp-agrimony
Flowers close-up
Leaves
Leaves
Seedhead