Plants by Common Name

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Plants by Scientific Name
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Lambsquarters (Chenopodium album)



The plant starts growing upright to about 3 feet when it flowers, and the weigh of the foliage causes it to become recumbent. The leaves have rough edges and grow to about 3 inches long. The small flowers are green with yellow points, and are radially symmetrical.



Lantana, Yellow Sage (Lantana camara L.)



Lantana (yellow sage) is a native of tropical Americas and West Africa. In the northern states including Illinois, it is grown as a garden annual reaching 12-18 inches tall . In the south, from Florida to California, it grows as a perennial shrub of 3-6 feet tall. In the tropics, it may grow even taller. Leaves are opposite, ovate, 1-5 inches long and 1-2 inches wide, with very small rounded teeth, somewhat rough and hairy. Leaves are aromatic when crushed. Flowers are borne in dense clusters 1-2 inches across on the axils near the top of the stem. Each flower is tubular with 4 lobes flaring to about 1/4 inch, initially yellow or pink gradually changing to orange and deep red. Often, the different colored flowers are present on the same cluster. Fruit is fleshy, greenish-blue to black, and berry-like with each containing one seed.



Larkspur, Dwarf (Delphinium tricorne Michx.)

Larkspur, Dwarf


Dwarf larkspur is an erect, little-branched herb 1 to 3 feet tall. Its leaves, alternately placed and slender-stalked, are deeply divided into 5 to 7 nearly separate lobes, each lobe itself again rather deeply lobed or toothed. Its stout stem ends in a flower-bearing part that carries several blue or white, spurred blossoms 1 to 1 1/2 inches long. Three short-pointed rather fragile, widely spreading pods about 1/2 inch long develop from each blossom. These pods contain numerous small, dark seeds. The rocket larkspur (Delphinium ajacis L.), which is cultivated and sometimes escapes, may be recognized from the above general description. It is supposed, in common with all other larkspurs, to be poisonous.



Lily of the Valley (Convallaria majalis)

Lily of the Valley


Herbaceous perennial that can form extensive colonies even though it only grows to about 11 inches. Each stem as two leaves and raceme with 5-15 flowers. Flowers are up to a quarter inch in diameter, bell shaped, and white.