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shepherd's-purse

(Encyclopedia)shepherd's-purse, annual herb (Capsella bursa-pastoris) of the family Cruciferae (or Brassicaceae; mustard family), indigenous to Europe but now a nearly cosmopolitan weed in temperate regions. It is ...

quack grass

(Encyclopedia)quack grass or couch grass, Old World perennial grass (Agropyron repens), now widely distributed and in the United States a troublesome weed. It somewhat resembles a beardless wheat and has creeping, ...

quaking grass

(Encyclopedia)quaking grass, any plant of the genus Briza, annuals or perennials of the Poaceae (grass family), cultivated for the graceful clusters of seeds, which vibrate in a breeze and are used in everlasting b...

pampas grass

(Encyclopedia)pampas grass, any species of the genus Cortaderia, tall South American plants of the family Poaceae (grass family) cultivated in warm climates for ornament. The common pampas grass (C. argentea or sel...

avocado

(Encyclopedia)avocado äˈvəkäˈdo, ăvˈ– [key], tropical American broad-leaved evergreen tree of the genus Persea of the family Lauraceae (laurel family). The fruit, called avocado, alligator pear, or, in Spa...

strawflower

(Encyclopedia)strawflower, garden annual (Helichrysum bracteatum) of the family Asteraceae (aster family), a favorite as an everlasting but also grown for its fresh flowers. The plant is native to Australia. The fl...

sweetbrier

(Encyclopedia)sweetbrier, sweetbriar, or eglantine ĕgˈləntīn, –tēn [key] [O. Fr. from Lat.,=needle], wild rose of Europe (Rosa eglanteria), cultivated and now naturalized in the United States. The bush has ...

yerba buena

(Encyclopedia)yerba buena yĕrˈbə bwāˈnə [key], trailing evergreen perennial (Micromeria chamissonis) of the family Labiatae (mint family). It is native to W North America and especially common to woodland are...

bur marigold

(Encyclopedia)bur marigold or sticktight, common name for any species of Bidens, a genus of chiefly weedy North American plants of the family Asteraceae (aster family) with two-pronged burlike fruits (achenes) that...

celery

(Encyclopedia)celery, biennial plant (Apium graveolens) of the family Umbelliferae (parsley family), of wide distribution in the wild state throughout the north temperate Old World and much cultivated also in Ameri...