Harperella nodosa

Family:APIACEAE
Species:Harperella nodosa Rose
Common Name:Harperella
Habitat:Crevices of sandstone bed rock in streams.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:**
Plant Notes:Harperella is a native herbaceous annual or biennial in the Carrot family (Apiaceae). Harperella is known to occur from Maryland to Alabama along the east coast and in the Ouachita Mountains of Arkansas and Oklahoma. In Alabama it occurs in northeast and north-central portions of the state. Harperella occurs on rocky sandbars and in cracks in rocks of swift-flowing streams, in wet savanna’s and around cypress ponds, and in pools on granite outcrops. Harperella has a fibrous root system and branched, hollow stems from 1-3 feet in height. The stems are green or reddish in color, ribbed, and glabrous. Leaves are alternate, reduced to hollow, quill-like structures with cross partitions, and glabrous. The leaves have broadly clasping bases. Small plantlets can form in the axils of the leaves. All parts of the plant are weakly aromatic when injured and have an odor similar to Dill. Flowers are produced in terminal umbels. The flowers have 5 white petals. Each umbel contains both perfect and male flowers. The fruit is a schizocarp this is elliptical in outline and slightly laterally compressed. Harperella is named in honor of Roland M. Harper, who first collected an unknown plant from a shallow coastal plain pond in Schley County, Georgia in 1902. In 1905 he collected a similar plant from along Little River in DeKalb County Alabama. These were named Harperella nodosa and Harperella fluviatilis respectively. The species were later transferred to the genus Ptilimnium. Dr. Robert Kral observed that P. fluviatile is shorter and develops roots at the nodes probably due to being toppled by flood waters, but was otherwise nearly identical to P nodosum. He synonymized the two under the older name (Ptilimnium nodosum). Harperella was re-separated from Ptilimnium in 2008. Harperella is listed as a S1 species in Alabama and globally as a G2 species. It was listed as an Endangered Species on October 28th, 1988.—A. Diamond
Taxonomic Notes:Listed as Federally Endangered as of 28 Oct 1988. The name used at the time of listing was Ptilimnium nodosum.
Status:Native, Endangered-US, OBL (NWI), S1 (State Rank), G2 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyAPIACEAE - Carrot/Parsley family
Genus Harperella
Species Harperella nodosa Rose - Harperella

Citation

Citation Harperella nodosa (Rose) Rose, Proc. Biol. Soc. Washington 19(22): 96. 1906.
Basionym: Harperia nodosa Rose 1905.
Type: GEORGIA. Schley Co.: Near Ellaville, 10 Jul 1902. Roland M. Harper 1411. (Holotype, US [514914]; isotype US)

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Harperella fluviatilis    
Ptilimnium fluviatile    
Ptilimnium nodosum    

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Cherokee, Cullman, DeKalb, Tuscaloosa, Walker

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, UNA, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
JSU117878 Cherokee 28 Jul 1986 R. D. Whetstone
15351
JSU
Harperella fluviatilis Rose
UWAL0018755 Cherokee 15 Aug 1981 Kral, R.
67653
UWAL
Harperella nodosa Rose
JSU117880 DeKalb 28 Jul 1986 R. D. Whetstone
15362
JSU
Harperella fluviatilis Rose
JSU117873 Cherokee 12 Jul 1982 R. D. Whetstone
11423
JSU
Harperella fluviatilis Rose
JSU117876 Cherokee 4 Jul 1986 R. D. Whetstone
15497
JSU
Harperella fluviatilis Rose
JSU117879 Cherokee 16 Sep 1982 R. D. Whetstone
12390
JSU
Harperella fluviatilis Rose
UNA00037678 Cullman _ Aug 1887 Mary Mohr
s.n.
UNA
Ptilimnium nodosum (Rose) Mathias
UNA00037677 Tuscaloosa 5 Oct 1952 E. G. Patton
s.n.
UNA
Ptilimnium nodosum (Rose) Mathias
UNA00037681 DeKalb 25 Nov 1905 Roland M. Harper
14
UNA
Ptilimnium nodosum (Rose) Mathias
UNA00037675 Tuscaloosa 30 Jun 1936 Roland M. Harper
3530
UNA
Ptilimnium nodosum (Rose) Mathias
UNA00037679 Walker 26 Aug 1879 Eugene A. Smith
s.n.
UNA
Ptilimnium nodosum (Rose) Mathias
UNA00026677 DeKalb 28 Aug 1956 Roland M. Harper
4370
UNA
Ptilimnium nodosum (Rose) Mathias
JSU117874 Cherokee 15 Jul 1993 J. M. Ballard
2972
JSU
Harperella fluviatilis Rose
UWAL0018196 DeKalb 28 Jul 1981 Kral, R.
67612
UWAL
Harperella nodosa Rose
JSU117877 Cherokee 4 Jul 1986 R. D. Whetstone
15494
JSU
Harperella fluviatilis Rose
UNA00024162 DeKalb 7 Jul 1978 Robert R. Haynes
6589
UNA
Ptilimnium nodosum (Rose) Mathias
UWAL0017796 Cherokee 30 Aug 1969 Kral, R.
36582
UWAL
Harperella nodosa Rose
JSU117875 Cherokee 4 Jul 1986 R. D. Whetstone
15493
JSU
Harperella fluviatilis Rose
UWAL0018188 DeKalb 27 Jul 1977 Kral, R.
60635
UWAL
Harperella nodosa Rosa
UNA00050230 Cherokee 4 Jul 1986 R. D. Whetstone
15493
UNA
Ptilimnium nodosum (Rose) Mathias
AUA000028895 DeKalb 15 JUL 1987 FREEMAN, JOHN D.
S. N.
AUA
PTILIMNIUM NODOSUM (ROSE) MATHIAS
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