Classification Hierarchy
Kingdom Plantae
Clade Angiosperms
Clade Eudicots
Clade Asterids
Order Apiales
Family Apiaceae
Genus Osmorhiza
Species Osmorhiza longistylis
Longstyle sweetroot (see references for photos)

Date: May 6, 2010. Location: Hanging Bog (map)

BONAP, FNA, ITIS, USDA, VPI, NPGH

Scientific Name: Osmorhiza longistylis

Common Names: Aniseroot, Longstyle sweetroot, Sweet Anise

Origin: Native

Notes: There are two species of Osmorhiza (sweetroot) in Iowa. They are; O. longistylis (Aniseroot) and O. claytonii (hairy sweet-cicely) . The most frequently suggested distinctions between the two species are:
1) O. longistylis roots have a strong anise/licorice odor, O. clalytonii does not.
2). O. longistylis has a longer style (2 to 4 mm) than does O. claytonii which have styles not exceeding 1.5 mm.
3). Stem pubescence seems an unreliable way to distinguish between the two, due to its variability, see reference #2 below.

Additional references: 1, 2, 3, 4, 5, 6.

Field Marks forIdentification:

[waiting for the FNA descriptiion of this species]

Flowers: XXXXXXXXXXXXXXXXXXXXXXXXXXX

Leaves:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Glossaries of botanical terms: 1, 2, 3, 4, 5, 6, 7, 8, 9.

Longstyle sweetroot-1 Longstyle sweetroot-2 Longstyle sweetroot-3 Longstyle sweetroot-4 Longstyle sweetroot-5 Longstyle sweetroot-6 Longstyle sweetroot-7 Longstyle sweetroot-8 Longstyle sweetroot-9 Longstyle sweetroot-10