Wild Four-O' Clock: Mirablis nyctaginea
|Weed Description: Erect
perennials with tuberous thickened roots that may reach 4 1/2 feet in height. Wild
four-o' clock is primarily a weed of pastures, hay fields, roadsides, and abandoned
locations that is found in North Carolina, Kentucky, Virginia, and West Virginia.
Roots: Very thick and tuber-like in some places.
Stems: Plants usually range from 1 1/2 to 4 1/2 feet in height. Stems are erect and branching.
|Leaves: Leaves are triangular
to triangular-lanceolate in outline, from 1 1/2 to 3 inches long and 1 to 2 inches wide.
Leaves occur on petioles that are approximately 3/4 inch or less in length.
Leaves have a deep green color and have prominent white midveins.
Flowers: Flowers are pink to lavender in color and occur on flower stalks (peduncles) that range from 3 to 10 mm in length.
|Fruit: A gray or brown achene
that is 4 to 5 mm long and elliptical.
Identifying Characteristics: Plants with thick rootstocks and triangular leaves that are dark green in color with prominent white midveins.