"The Pennsylvania bittercress has finished flowering, and it's usually much later," he said this day.

Cardamine occidentalis is a species of cardamine known by the common name big western bittercress.

The best tactic with all annuals, whether shaggy soldier, hairy bittercress or grass, is to be vigilant.

These conditions are prevalent in nursery or garden centre plants, and Hairy Bittercress seeds may be introduced with those plants.

Rare flora includes coral-root bittercress and yellow bird's-nest.

Cardamine (Car-dá-mi-ne, bittercress or bitter-cress), is a large genus of flowering plants in the family Brassicaceae.

Narrow-leaved Bittercress (Cardamine impatiens)

Apart from the tussac, plants found on the island include Wild Celery, Antarctic Starwort and Bittercress.

Cardamine corymbosa, commonly known as the New Zealand Bittercress, is a flowering plant in the Brassicaceae, or cabbage family.

New Zealand Bittercress was described by Hooker as "a small and very distinct species of Cardamine, wiry and fragile in every part".

Cardamine flexuosa, commonly known as Wavy Bittercress, is a herbaceous annual plant of the genus Cardamine.

Hairy Bittercress, Cardamine hirsuta, is an ephemeral plant native to Europe and Asia, but also present in North America.

Cardamine impatiens L. or narrow-leaved bittercress is a plant species of the genus Cardamine belonging to the family Brassicaceae.

Large Bittercress (Cardamine amara) and the non-native Himalayan Balsam (Impatiens glandulifera) are also found along the river banks.

Cardamine micranthera is a rare species of flowering plant in the mustard family known by the common names small-anthered bittercress and streambank bittercress.

The Bulbous Cress, Bittercress, or Spring Cress (Cardamine bulbosa) is a perennial plant native to eastern North America.

Its highlight is the abundance of flowers in spring, with a carpet of bluebells together with yellow archangel, lesser celandine, wood anemone and the rare coral root bittercress (cardamina bulbifera).

Barbarea vulgaris, also called as bittercress, herb barbara, rocketcress, yellow rocketcress, winter rocket, and wound rocket, is a biennial herb of the genus Barbarea, belonging to the family Brassicaceae.

Other common or country names include lamb's cress, land cress, hoary bitter cress, spring cress, flick weed, and shot weed (or lambscress, landcress, hoary bittercress, springcress, flickweed, and shotweed).

He held up a bit of Cardamine hirsuta, or hairy bittercress, and stared at its exploding seedheads with the sort of murderous loathing that could only be mustered by a man who had spent years rooting out the little blighters.

The problem with weeds like bittercress and groundsel is that if you just chop them off with a Dutch hoe or pull and leave in situ they often go on and set seed, even though their roots are completely out of the ground.

I think of weeds by their growth habits, splitting them into two groups: pernicious perennials (such as docks, Japanese knotweed, creeping buttercups, marestail, bindweed and bramble), and annuals and ephemerals (fat hen, cleavers, chickweed and hairy bittercress).

Bittercress or Bitter-cress may refer to:

The site supports the nationally rare Wood Fescue and Narrow-leaved Bitter-cress.

Cardamine (Car-dá-mi-ne, bittercress or bitter-cress), is a large genus of flowering plants in the family Brassicaceae.

Uncommon specias include Herb Paris, Greater Butterfly Orchid and Narrow-leaved Bitter-cress.

The park is considered the best surviving example of Middlesex countryside in the Brent basin and has a population of the nationally rare plant the narrow-leaved bitter-cress (Cardamine impatiens).

Cardamine is also the name of an illegal drug in the Microsoft game "Freelancer".

Other flora include the rare Cardamine pattersonii.

Genus Dentaria is a synonym for Cardamine.

The rare Cardamine nuttallii var.

Cardamine occidentalis is a species of cardamine known by the common name big western bittercress.

Brassicaceae include Cardamine, Draba, and Weberbauera.

The larvae feed on Cardaria draba, Cardamine amara and Lunaria rediviva.

The name "cardamine" is derived from the Greek kardamon, cardamom - an unrelated plant in the ginger family, used as a pungent spice in cooking.

The plant may be distinguished from its relative Cardamine rotundifolia by its smaller, rounder anthers, smaller petals, and shorter fruits.

New Zealand Bittercress was described by Hooker as "a small and very distinct species of Cardamine, wiry and fragile in every part".

He named his daughter Cardamine, alluding to the scientific name of the Cuckoo Flower Cardamine pratensis.

Not long ago another man, who had been experimenting on the quasi-bulbs on the leaves of Cardamine, wrote to me to complain that he could not find out what was known on the subject.

Watercress is also listed in some sources as belonging to the genus Rorippa, although molecular evidence shows the aquatic species with hollow stems are more closely related to Cardamine than Rorippa.

The female lays eggs singly on the flowerheads of Cuckooflower Cardamine pratensis and Garlic Mustard Alliaria petiolata and many other species of wild Crucifers, all of which contain chemicals called glucosinolates.

Like other members of the family, this species has functional jaws and it feeds as an adult on pollen grains from a wide variety of plants such as Acer, Ajuga, Caltha, Cardamine, Carex, Crataegus, Mercurialis and Ranunculus.