But other crops, notably soybean, became a priority in later years, followed most recently by novel oilseed crops including cuphea, field pennycress
, and lesquerella.
Other minor weeds recorded in the field were wandering cudweed (Gnaphalium pensylvanicum (Willd.) Cabrera; Asteraceae), sow thistle (Sochus spp.; Asterales: Asteraceae), field pennycress
(Thiaspi arvense L.; Brassicales: Brassicaceae) and Mexican tea (Chenopodium ambrosioides L.; Caryophyllales: Chenopodiaceae).
THLASPI ARVENSE L.; Field Pennycress
; Oldfield along RR track; Common; C = 0; BSUH 18707.
They also can be obtained from Pongamia, field pennycress
, Jatropha, and other crops such as mustard, jojoba, flax, sunflower, palm oil, coconut, and hemp.
Scientists with the Agricultural Research Service (ARS), USDA's principal intramural scientific research agency, have found that field pennycress
yields impressive quantities of seeds whose oil could be used in biodiesel production.
; TAC 4278) is a native of Europe and occurs in the Edwards Plateau and the northeastern portion of the WCT, often inhabiting various types of soils in disturbed areas (Diggs et at.
In Brief: Field pennycress
may go from weed to "wonderfuel," thanks to studies by ARS scientists in Peoria, III.
Table 14-2 Advantages of Using a Herbicide Mixtures because of Resistance of Certain Weed Species HERBICIDE 2,4-D + MECOPROP + WEED 2,4-D MECOPROP DICAMBA DICAMBA Common chickweed R * I S S Black medic R I S S Purslane I R S S Red sorrel I R S S Broadleaf plantain S I R S Buckhorn plantain S I R S Knotweed R I S S Spurweed I S I S White clover I S S S Field pennycress
S I S S * R = resistant; S = susceptible; I = intermediate susceptibility--applications may have to be repeated for satisfactory control.
alba (meadow-sweet) * -- -- -- Stachys aspera (hyssop hedge nettle) * -- -- -- Stachys tenuifolia (common hedge -- -- -- nettle) * Symplocarpus foetidus (skunk cabbage) * -- -- -- Taraxacum officinale (common dandelion) -- 2.5 -- Thalictrum thalictroides -- -- -- (rue anemone) * Thlaspi arvense (field pennycress
) -- -- -- Toxicodendron radicans (poison ivy) * 15.0 15.0 2.5 Tragopogon dubius (yellow salsify) -- 2.5 2.5 Trifolium pratense (red clover) -- -- 2.5 Trifolium repens (white clover) -- -- -- Typha latifotia (broad-leaf cattail) * 2.5 -- -- Urtica dioica var.
Volunteer establishment of additional grasses and forbs also occurred, including smooth brome (Bromus inermis Lyess.), wild buckwheat (Polygonum convolvulus L.), common lambquarters (Chenopodium album L.), field pennycress
(Thlaspi arvense L.), and foxtail (Setaria spp.).
THLASPI ARVENSE L.; Field pennycress
; Gravel lot and adjacent field; Rare but locally frequent; C = 0; BSUH 17767.
For instance, field pennycress
(Thlaspi arvense) has a reputation as a roadside nuisance, but like its other relatives in the Brassicaceae family--including canola, Camelina, and mustard--it puts out a prolific yield of oil-rich seeds.