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winter cress

(Encyclopedia)winter cress or upland cress, species of Barbarea, herbs of the family Cruciferae (or Brassicaceae; mustard family). The pungent leaves of several species have been used for salads or garnishes, and t...

tamarisk

(Encyclopedia)tamarisk tămˈərĭsk [key], shrub or small tree of the genus Tamarix, native chiefly to the Mediterranean area and to central Asia. The plants are often heathlike and thrive in arid and coastal regi...

tansy

(Encyclopedia)tansy tănˈzē [key], perennial herb (Tanacetum vulgare) of the family Asteraceae (aster family), native to Europe but naturalized in North America. It was long cultivated for its ornamental foliage ...

sweet cicely

(Encyclopedia)sweet cicely sĭsˈəlē [key], name for the European herb Myrrhis odorata and for closely related American and Asian plants of the genus Osmorhiza, all of the family Umbelliferae (parsley family). Bo...

teasel

(Encyclopedia)teasel, common name for some members of the Dipsacaceae, a family of chiefly Old World herbs found mostly in the Mediterranean and Balkan areas but ranging to India and to S Africa. Species of Dipsacu...

bombax

(Encyclopedia)bombax bŏmˈbăks [key], common name for the Bombacaceae, a family of deciduous trees, often tall and with unusually thick trunks, found chiefly in the American tropics. The family includes many comm...

broom

(Encyclopedia)broom, common name for plants of two closely related and similar Old World genera, Cytisus and Genista, of the family Leguminosae (pulse family). They are mostly twiggy leguminous shrubs with abundant...

brodiea

(Encyclopedia)brodiea or brodiaea both: brədēˈə [key], any plant of the genus Brodiaea, herbs of the family Liliaceae (lily family), with narrow leaves and blue or purple star-shaped flowers. The many North Ame...

brazilwood

(Encyclopedia)brazilwood, common name for several trees of the family Leguminosae (pulse family) whose wood yields a red dye. The dye has largely been replaced by synthetic dyes for fabrics, but it is still used in...

Jerusalem artichoke

(Encyclopedia)Jerusalem artichoke, tuberous-rooted perennial (Helianthus tuberosus) of the family Asteraceae (aster family), native to North America, where it was early cultivated by the indigenous inhabitants. In ...