CPC Plant Profile: Streambank Globemallow
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Plant Profile

Streambank Globemallow (Iliamna rivularis var. rivularis)

A close view of the light pink flowers of the wild hollyhock. Photo Credit:
Description
  • Global Rank: T5 - Secure
  • Legal Status: N/A
  • Family: Malvaceae
  • State: VA, WA, WY, AB, BC, CO, ID, IL, IN, MT, NV, OR, UT
  • Nature Serve ID: 160074
  • Date Inducted in National Collection: 03/05/1993

The Kankakee globe-mallow was first described in 1906, and was originally found on an island in the Kankakee River in Illinois. In the 1920's it was recognized that this species was in danger of extinction, so seeds were collected and reportedly dispersed along railways in Illinois, Indiana, and Virginia. Since that time, populations have established and generally increased. This species was not known from Virginia before the 1920's, so it is theorized that it is there as a result of human-facilitated dispersal (Stewart and Porter 1995; Stewart et al. 1996). There are eight species in the Iliamna genus, all of them native to North America. Six are found west of the Mississippi River, and two east. Iliamna rivularis var. rivularis (or Iliamna remota, as it is considered by some) and Iliamna corei are the two species east of the Mississippi, and both are considered rare and endangered. This species grows to a height of 2 meters, with leaves that are shallowly 5- to 7-lobed, 15-20 cm long and nearly as wide. This globe-mallow produces fragrant, rose-purple flowers that are 4-6 cm in diameter. (Greene 1906)

Participating Institutions
Updates
  • 10/06/2020
  • Genetic Research

Tracey Bodo Slotta, a graduate student at Virginia Polytechnic Institute and State University studied the phylogenetics of the genus Iliamna (Malvaceae) using the internal transcribed spacer region. (Bodo Slotta 2000, Bodo Slotta & Porter 2001)

Nature Serve Biotics
  • 05/02/2017

Dawn M. Gerlica
  • 01/01/2010

deer browsing drought and hot weather trampling and picking loss of habitat herbicides competition with invasive species predation by insects and feral goats (Virginia population) fire suppression

Dawn M. Gerlica
  • 01/01/2010

Unknown. There is an ongoing debate over the taxonomic status of this species.

Dawn M. Gerlica
  • 01/01/2010

Tracey Bodo Slotta, a graduate student at Virginia Polytechnic Institute and State University studied the phylogenetics of the genus Iliamna (Malvaceae) using the internal transcribed spacer region. (Bodo Slotta 2000, Bodo Slotta & Porter 2001)

Dawn M. Gerlica
  • 01/01/2010

The island where this species was originally discovered is currently protected, and habitat is managed for the species.

Dawn M. Gerlica
  • 01/01/2010

Continued research into the taxonomic status of this and other species in the Iliamna genus.

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Photos
Nomenclature
Taxon Iliamna rivularis var. rivularis
Authority Greene
Family Malvaceae
CPC Number 2310
ITIS 195648
USDA ILRIR
Common Names Kankakee globe-mallow | Peter's Mountain mallow | streambank wild hollyhock
Associated Scientific Names Iliamna rivularis var. rivularis | Iliamna acerifolia | Sphaeralcea rivularis | Iliamna corei | Iliamna remota | Phymosia remota | liamna rivularis
Distribution Kartesz (1999) shows this species in a number of northwestern states in the U.S., as well as two provinces in Canada. All other sources recognize this species as Iliamna remota, found in only the sta
State Rank
State State Rank
Alberta SNR
British Columbia S3S4
Colorado SNR
Idaho SNR
Illinois SNR
Indiana SNR
Montana SNR
Nevada SNR
Oregon SNR
Utah SNR
Virginia SNR
Washington SNR
Wyoming SNR
Habitat

Found along riverbanks, as well as many disturbed sites, such as railroad rights-of-way and on dry banks, in old fields, and in open woods.

Ecological Relationships

None known.

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Bees Confirmed Pollinator Link
Bees Confirmed Pollinator Link
Butterflies & Moths
Butterflies Confirmed Pollinator Link
Beetles
Beetles Confirmed Pollinator Link
Other
Insects Confirmed Pollinator Link

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