Scientific Family
Apiaceae
Plant type
Forbs and Subshrubs
Origin
Introduced
Lifecycle
Perennial
Height
1-1/2 to 4 feet
Riparian
Yes
Erect or ascending stems with upper leaves much reduced and flowers in umbels. Leaf shape and scent are similar to celery. Can be relatively tall plant. Stalks are yellow to yellow-brown by late summer with attached celery like seeds.
Only 1 species of Apium in Yavapai County. This plant has no involucre or sepals; pinnate or more than once compound leaves; fruit ribs have very small wings; inflorescence branches from a single point (umbel).
Habitat
Moist places in low elevations.
Plant Community
Riparian
Low elevation
0
High elevation
3300
Flower Characteristics
Many small flowers with 5 free and wide petals; minute calyx lobes.
Flower color
White to greenish-white
Flower shape
Regular
Tubular
No
First bloom month
May
Last bloom month
October
Flower clusters
Rounded
Leaf and Stem Characteristics
Stalk portion of leaf is 1/8 to 1 inch and the blade is 2-3/4 to 7 inches with leaflets that are 3/4 to 1-3/4 inches long.
Leaf type
Simple
Leaf color
Green
Leaf shape
Pinnatifid
Leaf margin
Lobed
Leaves clasp
No
Leaf hairs
None
Spines
No
Fruit and Seed Characteristics
Two dry, 1-seeded halves separate from each other but generally remain attached for some time to a central axis and are 1/16 to 1/2 inch in diameter. Ovary may have a conical or flat top.
Fruit type
Other
Flat faced.