Osmorhiza depauperata
Encyclopedia
Osmorhiza depauperata is a species of flowering plant in the carrot family
Apiaceae
The Apiaceae , commonly known as carrot or parsley family, is a group of mostly aromatic plants with hollow stems. The family is large, with more than 3,700 species spread across 434 genera, it is the sixteenth largest family of flowering plants...

 known by the common name bluntseed sweetroot. It is native to much of western and northern North America, as well as parts of South America, where it grows in wooded areas. It is an erect perennial herb up to 80 centimeters tall. The green leaves have blades up to 12 centimeters wide which are divided into toothed or deeply lobed leaflets. The blade is borne on a long petiole
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 is a compound umbel
Umbel
An umbel is an inflorescence which consists of a number of short flower stalks which are equal in length and spread from a common point, somewhat like umbrella ribs....

 of many tiny white flowers at the tip of a stemlike peduncle
Peduncle (botany)
In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.The peduncle is a stem, usually green and without leaves, though sometimes colored or supporting small leaves...

. The club-shaped fruit is ribbed and bristly, measuring 1 to 2 centimeters long.

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