Weed names Flashcards
What is the only weed in Caryophyllaceae?
Indicate Appearance period, Affected crops, if its Herbicide Resistant and if it has Vegetative reproduction
Stellaria media (Common chickweed)
Germinates all the year, mostly winter-spring.
Vineyards, meadows, horticultural crops, fruit crops, strawberry crops.
It is Herbicide Resistant
It has Vegetative Reproduction: it reproduces mostly from seed, but sometimes it reproduces by creeping stems that root from stem joints (nodes).
What is the only weed in Geraniaceae?
Family etymology: The genus name is derived from the Greek γέρανος (géranos) or γερανός (geranós) ‘crane’. The English name ‘cranesbill’
Indicate Appearance period, Affected crops, if its Herbicide Resistant and if it has Vegetative reproduction
Erodium malacoides (Mediterranean stork’s bill)
Etymology: Greek: heron, from bill-like fruit
Autumn-Winter weed
Cultivated fields. Therophytic calicole fields.
No herbicide resistance or vegetative reproduction
What is the only weed in Lamiaceae?
Indicate Appearance period, Affected crops, if its Herbicide Resistant and if it has Vegetative reproduction
Lamium amplexicaule
Etymology: (botany, of leaves) amplexicaul (having lobes that completely surround the stem)
Winter weed
Affects Wheat
Herbicide resistant
No Vegetative reproduction
Apiaceae weeds: common traits
Weeds: Daucus carota, Torilis arvensis, Ridoilfia segetum
They mainly are spring species, although Daucus carota can be found all year long.
The crops they affect are specific for each weed
Only D. carota has herbicide resistance
None of them can reproduce vegetatively
Daucus carota (Apiaceae); special traits
Can be found all year long
Affects wheat, corn, soybean, pastures, vegetable crops, and orchards.
Herbicide resistant
Problem in animal farms, especially dairy cow ones. This is because it can taint milk if dairy cows ingest large amounts. It may be mildly toxic to livestock.
Torilis arvensis (Apiaceae): special traits
Etymology: Gk. torilis from torus = a borer, -ilis = passive adjective); toreo = to bore through, pierce; referring to the prickled fruit.
Spring specie, that affects cereals
Ridolfia segetum (Apiaceae): special traits
segentum is corn in latin (for yellow flowers)
Spring specie, that affects chickpea and sunflower
Name the three weeds species in Apiaceae
Daucus carota, Torilis arvensis, Ridoilfia segetum
Name the three weeds species of Papaveraceae
Papaver rhoeas, Fumaria capreolata and Fumaria officinalis
Papaveraceae weeds: common traits
No herbicide resistance in Fumaria spp, but there is in P. rhoeas.
No vegetative reproduction
Papaver rhoeas (Papaveraceae): special traits
Spring-summer species
Found in cereals (very competitive), wheat
Has herbicide resistance
Cosmopolitan
Fumaria weeds (Papaveraceae): common traits
Fumaria capreolata, Fumaria officinalis
Winter species
Irrigated fields and horticultural crops.
F. officinalis can affect cereals too.
No resistance to herbicides or vegetative reproduction
What is the only weed in Portulaceae?
Indicate Appearance period, Affected crops, if its Herbicide Resistant and if it has Vegetative reproduction
Portulaca oleracea
Summer weed
Affects carrots, vegetables
Herbicide resistant
Reproduces vegetatively
Name the 3 weeds of Fabaceae
Trifolium repens, Medicago sativa, Medicago minima
Common traits in Fabaceae
Spring- summer weeds
No herbicide resistance
Only Trifolium repens has vegetative reproduction, Medicago species don´t
