Chamaecrista horizontalis

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:FABACEAE
Species:Chamaecrista horizontalis A.R. Franck
Common Name:Running Partridge Pea; Perennial Partridge Pea
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Running Partridge Pea is a native perennial in the Bean family (Fabaceae). It is native to Alabama, Florida, Georgia, and Mississippi. In Alabama it is found in the southern third of the state. It grows in sand hills, scrub oak woods, on old dunes, and in dry longleaf pine woods. Running Partridge Pea is a perennial from a woody horizontal rhizome. One to six herbaceous stems are produced from each root crown. Stems are erect, unbranched or sparsely branched, glabrous, and reddish or brown/green in color. The stems are from 8-15 inches in height. Leaves are alternate, even pinnately compound, and glabrous. There are 12-20 pairs of oblong leaflets per leaf. Near the base of the petiole there is an oval yellow and red gland. This is an extra-floral nectary. It produces nectar that attracts ants. The ants in turn help protect the plant from herbivores. Flowers are produced from the leaf axils. Flowers are solitary on a petiole that is about 1 inch long. Each flower has 5 narrow sepals and 5 yellow petals. There is a small red mark at the base of each petal. The fruit is a many seeded legume. Running Partridge Pea is listed as an S1 species in Alabama, Georgia, and Mississippi (typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology making it especially vulnerable in the state) and is listed as a G2 species globally (imperiled globally because of rarity (6 - 20 occurrences, or few remaining acres, or miles of stream) or very vulnerable to extinction throughout its range because of other factors). Running Partridge Pea is a larval host plant for the Cloudless Sulphur butterfly (Phoebis sennae). Two other Chamaecrista species occur in the same area. Both are annuals with a tap root. Common Sensitive Plant (Chamaecrista nictitans (Linnaeus) Moench) has much smaller flowers. Common Partridge Pea (Chamaecrista fasciculata (Michaux) Greene) is a weedy annual that usually flowers later in th
Taxonomic Notes:Historically, the perennial Chamaecrista material in Alabama was treated as C. deeringiana. In 2021, Franck in Weakley et al split Chamaecrista horizontalis A.R. Franck from C. deeringiana. The result from the split was that all Alabama material was identifiable with C. horizontalis while C. deeringiana is restricted to extreme south Florida. All specimens cited below currently identified as C. derringiana should be re-evaluated but most are likely referable to C. horizontalis.--B.R. Keener
Status:Native, 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

FamilyFABACEAE - Pea/Bean family
Genus Chamaecrista
Species Chamaecrista horizontalis A.R. Franck - Running Partridge Pea; Perennial Partridge Pea

Citation

Citation Chamaecrista horizontalis A.R. Franck, J. Bot. Res. Inst. Texas 15(1): 48. 2021.
Basionym: **
Type: USA: GEORGIA: Taylor Co.: 3 mi. N of Butler, 18 Jul 1948, Cronquit 5516 (holotype: GA039438; isotypes: FLAS51702, GH01873982, IND0049273, LSU0067554, NY01453567, US 00366391).

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Cassia deeringiana    

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: Baldwin, Conecuh, Covington, Crenshaw, Escambia, Geneva, Houston, Pike

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
UNA00067295 Escambia 21 Jun 2007 Schotz, Alfred
2061		 UNA
Chamaecrista deeringiana Small & Pennell
TROY000004930 Geneva 19 Jun 1978 Kral, Robert
62082		 TROY
Chamaecrista deeringiana Small & Pennell
UWAL0039321 Pike 17 Jun 2016 Diamond, Alvin R.
27488		 UWAL
Chamaecrista horizontalis A.R. Franck
UWAL0005471 Covington 20 May 2011 Diamond, Alvin R.
22135.1		 UWAL
Chamaecrista horizontalis A.R. Franck
TROY000018937 Conecuh 19 Jul 2008 Diamond, Alvin R.
19573		 TROY
Chamaecrista deeringiana Small & Pennell
AUA000010875 Escambia 27 Jun 1993 Diamond, Alvin R.
8697		 AUA
Chamaecrista Deeringiana Small & Pennell
TROY000004934 Escambia 10 Jun 2004 Diamond, Alvin R.
14438		 TROY
Chamaecrista deeringiana Small & Pennell
AUA000041280 Covington 7 Sep 2012 Hansen, Curtis J.
5735		 AUA
Chamaecrista Deeringiana Small & Pennell
TROY000004935 Houston 29 May 1999 MacDonald, John R.
12901		 TROY
Chamaecrista deeringiana Small & Pennell
TROY000032424 Covington 20 May 2011 Diamond, Alvin R.
22135 A		 TROY
Chamaecrista deeringiana Small & Pennell
ALNHS00004128 Baldwin 07 Sep 2016 Barger, T. Wayne
SP#2521		 ALNHS
Chamaecrista deeringiana Small & Pennell
TROY000004931 Covington 15 Jun 1999 MacDonald, John R.
13023		 TROY
Chamaecrista deeringiana Small & Pennell
TROY000045407 Escambia 21 Jun 2007 Schotz, Alfred
2061		 TROY
Chamaecrista deeringiana Small & Pennell
UWAL0034815 Baldwin 07 Jun 1995 Kral, Robert
84931		 UWAL
Chamaecrista horizontalis A.R. Franck
TROY000004932 Covington 08 Jul 2001 Diamond, Alvin R.
12502		 TROY
Chamaecrista deeringiana Small & Pennell
AUA000032663 Covington 23 Jun 2010 Hansen, Curtis J.
4741		 AUA
Chamaecrista Deeringiana Small & Pennell
AUA000010874 Crenshaw 4 Sep 1997 Diamond, Alvin R.
11105		 AUA
Chamaecrista Deeringiana Small & Pennell
TROY000039025 Conecuh 04 Jul 2013 Diamond, Alvin R.
24306		 TROY
Chamaecrista deeringiana Small & Pennell
AUA000010872 Conecuh 19 Jul 1994 Diamond, Alvin R.
9271		 AUA
Chamaecrista Deeringiana Small & Pennell
UWAL0052816 Baldwin 22 Jun 1997 Sorrie, B.A.
9327		 UWAL
Chamaecrista deeringiana Small & Pennell
UWAL0015757 Conecuh 04 Jul 2013 Diamond, Alvin R.
24306		 UWAL
Chamaecrista horizontalis A.R. Franck
AUA000010873 Covington 5 Jun 1997 Diamond, Alvin R.
11024		 AUA
Chamaecrista Deeringiana Small & Pennell
UWAL0018491 Houston 26 Jun 1991 Kral, Robert
79178		 UWAL
Chamaecrista horizontalis A.R. Franck
TROY000004933 Escambia 26 May 1995 Brittain, Cynthia L.
277		 TROY
Chamaecrista deeringiana Small & Pennell
TROY000043921 Pike 17 Jun 2016 Diamond, Alvin R.
27488		 TROY
Chamaecrista deeringiana Small & Pennell
AUA000010877 Pike 7 Jul 1997 Diamond, Alvin R.
11058		 AUA
Chamaecrista Deeringiana Small & Pennell
AUA000010876 Escambia 10 Jun 2004 Diamond, Alvin R.
14438		 AUA
Chamaecrista Deeringiana Small & Pennell
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